diff -drupN a/fs/f2fs/super.c b/fs/f2fs/super.c --- a/fs/f2fs/super.c 2018-08-06 17:23:04.000000000 +0300 +++ b/fs/f2fs/super.c 2022-06-12 05:28:14.000000000 +0300 @@ -22,8 +22,10 @@ #include #include #include +#include #include #include +#include #include "f2fs.h" #include "node.h" @@ -35,20 +37,22 @@ #define CREATE_TRACE_POINTS #include -static struct proc_dir_entry *f2fs_proc_root; static struct kmem_cache *f2fs_inode_cachep; -static struct kset *f2fs_kset; #ifdef CONFIG_F2FS_FAULT_INJECTION char *fault_name[FAULT_MAX] = { [FAULT_KMALLOC] = "kmalloc", + [FAULT_KVMALLOC] = "kvmalloc", [FAULT_PAGE_ALLOC] = "page alloc", + [FAULT_PAGE_GET] = "page get", + [FAULT_ALLOC_BIO] = "alloc bio", [FAULT_ALLOC_NID] = "alloc nid", [FAULT_ORPHAN] = "orphan", [FAULT_BLOCK] = "no more block", [FAULT_DIR_DEPTH] = "too big dir depth", [FAULT_EVICT_INODE] = "evict_inode fail", + [FAULT_TRUNCATE] = "truncate fail", [FAULT_IO] = "IO error", [FAULT_CHECKPOINT] = "checkpoint error", }; @@ -56,7 +60,7 @@ char *fault_name[FAULT_MAX] = { static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate) { - struct f2fs_fault_info *ffi = &sbi->fault_info; + struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; if (rate) { atomic_set(&ffi->inject_ops, 0); @@ -82,6 +86,7 @@ enum { Opt_discard, Opt_nodiscard, Opt_noheap, + Opt_heap, Opt_user_xattr, Opt_nouser_xattr, Opt_acl, @@ -89,6 +94,8 @@ enum { Opt_active_logs, Opt_disable_ext_identify, Opt_inline_xattr, + Opt_noinline_xattr, + Opt_inline_xattr_size, Opt_inline_data, Opt_inline_dentry, Opt_noinline_dentry, @@ -100,10 +107,32 @@ enum { Opt_noextent_cache, Opt_noinline_data, Opt_data_flush, + Opt_reserve_root, + Opt_resgid, + Opt_resuid, Opt_mode, + Opt_io_size_bits, Opt_fault_injection, Opt_lazytime, Opt_nolazytime, + Opt_quota, + Opt_noquota, + Opt_usrquota, + Opt_grpquota, + Opt_prjquota, + Opt_usrjquota, + Opt_grpjquota, + Opt_prjjquota, + Opt_offusrjquota, + Opt_offgrpjquota, + Opt_offprjjquota, + Opt_jqfmt_vfsold, + Opt_jqfmt_vfsv0, + Opt_jqfmt_vfsv1, + Opt_whint, + Opt_alloc, + Opt_fsync, + Opt_test_dummy_encryption, Opt_err, }; @@ -114,6 +143,7 @@ static match_table_t f2fs_tokens = { {Opt_discard, "discard"}, {Opt_nodiscard, "nodiscard"}, {Opt_noheap, "no_heap"}, + {Opt_heap, "heap"}, {Opt_user_xattr, "user_xattr"}, {Opt_nouser_xattr, "nouser_xattr"}, {Opt_acl, "acl"}, @@ -121,6 +151,8 @@ static match_table_t f2fs_tokens = { {Opt_active_logs, "active_logs=%u"}, {Opt_disable_ext_identify, "disable_ext_identify"}, {Opt_inline_xattr, "inline_xattr"}, + {Opt_noinline_xattr, "noinline_xattr"}, + {Opt_inline_xattr_size, "inline_xattr_size=%u"}, {Opt_inline_data, "inline_data"}, {Opt_inline_dentry, "inline_dentry"}, {Opt_noinline_dentry, "noinline_dentry"}, @@ -132,229 +164,198 @@ static match_table_t f2fs_tokens = { {Opt_noextent_cache, "noextent_cache"}, {Opt_noinline_data, "noinline_data"}, {Opt_data_flush, "data_flush"}, + {Opt_reserve_root, "reserve_root=%u"}, + {Opt_resgid, "resgid=%u"}, + {Opt_resuid, "resuid=%u"}, {Opt_mode, "mode=%s"}, + {Opt_io_size_bits, "io_bits=%u"}, {Opt_fault_injection, "fault_injection=%u"}, {Opt_lazytime, "lazytime"}, {Opt_nolazytime, "nolazytime"}, + {Opt_quota, "quota"}, + {Opt_noquota, "noquota"}, + {Opt_usrquota, "usrquota"}, + {Opt_grpquota, "grpquota"}, + {Opt_prjquota, "prjquota"}, + {Opt_usrjquota, "usrjquota=%s"}, + {Opt_grpjquota, "grpjquota=%s"}, + {Opt_prjjquota, "prjjquota=%s"}, + {Opt_offusrjquota, "usrjquota="}, + {Opt_offgrpjquota, "grpjquota="}, + {Opt_offprjjquota, "prjjquota="}, + {Opt_jqfmt_vfsold, "jqfmt=vfsold"}, + {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, + {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, + {Opt_whint, "whint_mode=%s"}, + {Opt_alloc, "alloc_mode=%s"}, + {Opt_fsync, "fsync_mode=%s"}, + {Opt_test_dummy_encryption, "test_dummy_encryption"}, {Opt_err, NULL}, }; -/* Sysfs support for f2fs */ -enum { - GC_THREAD, /* struct f2fs_gc_thread */ - SM_INFO, /* struct f2fs_sm_info */ - NM_INFO, /* struct f2fs_nm_info */ - F2FS_SBI, /* struct f2fs_sb_info */ -#ifdef CONFIG_F2FS_FAULT_INJECTION - FAULT_INFO_RATE, /* struct f2fs_fault_info */ - FAULT_INFO_TYPE, /* struct f2fs_fault_info */ -#endif -}; - -struct f2fs_attr { - struct attribute attr; - ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *); - ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *, - const char *, size_t); - int struct_type; - int offset; -}; - -static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type) +void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) { - if (struct_type == GC_THREAD) - return (unsigned char *)sbi->gc_thread; - else if (struct_type == SM_INFO) - return (unsigned char *)SM_I(sbi); - else if (struct_type == NM_INFO) - return (unsigned char *)NM_I(sbi); - else if (struct_type == F2FS_SBI) - return (unsigned char *)sbi; -#ifdef CONFIG_F2FS_FAULT_INJECTION - else if (struct_type == FAULT_INFO_RATE || - struct_type == FAULT_INFO_TYPE) - return (unsigned char *)&sbi->fault_info; -#endif - return NULL; + struct va_format vaf; + va_list args; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + printk_ratelimited("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); + va_end(args); } -static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a, - struct f2fs_sb_info *sbi, char *buf) +static inline void limit_reserve_root(struct f2fs_sb_info *sbi) { - struct super_block *sb = sbi->sb; - - if (!sb->s_bdev->bd_part) - return snprintf(buf, PAGE_SIZE, "0\n"); + block_t limit = (sbi->user_block_count << 1) / 1000; - return snprintf(buf, PAGE_SIZE, "%llu\n", - (unsigned long long)(sbi->kbytes_written + - BD_PART_WRITTEN(sbi))); + /* limit is 0.2% */ + if (test_opt(sbi, RESERVE_ROOT) && + F2FS_OPTION(sbi).root_reserved_blocks > limit) { + F2FS_OPTION(sbi).root_reserved_blocks = limit; + f2fs_msg(sbi->sb, KERN_INFO, + "Reduce reserved blocks for root = %u", + F2FS_OPTION(sbi).root_reserved_blocks); + } + if (!test_opt(sbi, RESERVE_ROOT) && + (!uid_eq(F2FS_OPTION(sbi).s_resuid, + make_kuid(&init_user_ns, F2FS_DEF_RESUID)) || + !gid_eq(F2FS_OPTION(sbi).s_resgid, + make_kgid(&init_user_ns, F2FS_DEF_RESGID)))) + f2fs_msg(sbi->sb, KERN_INFO, + "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root", + from_kuid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resuid), + from_kgid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resgid)); } -static ssize_t f2fs_sbi_show(struct f2fs_attr *a, - struct f2fs_sb_info *sbi, char *buf) +static void init_once(void *foo) { - unsigned char *ptr = NULL; - unsigned int *ui; - - ptr = __struct_ptr(sbi, a->struct_type); - if (!ptr) - return -EINVAL; - - ui = (unsigned int *)(ptr + a->offset); + struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; - return snprintf(buf, PAGE_SIZE, "%u\n", *ui); + inode_init_once(&fi->vfs_inode); } -static ssize_t f2fs_sbi_store(struct f2fs_attr *a, - struct f2fs_sb_info *sbi, - const char *buf, size_t count) +#ifdef CONFIG_QUOTA +static const char * const quotatypes[] = INITQFNAMES; +#define QTYPE2NAME(t) (quotatypes[t]) +static int f2fs_set_qf_name(struct super_block *sb, int qtype, + substring_t *args) { - unsigned char *ptr; - unsigned long t; - unsigned int *ui; - ssize_t ret; + struct f2fs_sb_info *sbi = F2FS_SB(sb); + char *qname; + int ret = -EINVAL; - ptr = __struct_ptr(sbi, a->struct_type); - if (!ptr) + if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) { + f2fs_msg(sb, KERN_ERR, + "Cannot change journaled " + "quota options when quota turned on"); return -EINVAL; + } + if (f2fs_sb_has_quota_ino(sb)) { + f2fs_msg(sb, KERN_INFO, + "QUOTA feature is enabled, so ignore qf_name"); + return 0; + } - ui = (unsigned int *)(ptr + a->offset); - - ret = kstrtoul(skip_spaces(buf), 0, &t); - if (ret < 0) - return ret; -#ifdef CONFIG_F2FS_FAULT_INJECTION - if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX)) + qname = match_strdup(args); + if (!qname) { + f2fs_msg(sb, KERN_ERR, + "Not enough memory for storing quotafile name"); return -EINVAL; -#endif - *ui = t; - return count; -} - -static ssize_t f2fs_attr_show(struct kobject *kobj, - struct attribute *attr, char *buf) -{ - struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, - s_kobj); - struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); - - return a->show ? a->show(a, sbi, buf) : 0; + } + if (F2FS_OPTION(sbi).s_qf_names[qtype]) { + if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0) + ret = 0; + else + f2fs_msg(sb, KERN_ERR, + "%s quota file already specified", + QTYPE2NAME(qtype)); + goto errout; + } + if (strchr(qname, '/')) { + f2fs_msg(sb, KERN_ERR, + "quotafile must be on filesystem root"); + goto errout; + } + F2FS_OPTION(sbi).s_qf_names[qtype] = qname; + set_opt(sbi, QUOTA); + return 0; +errout: + kfree(qname); + return ret; } -static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr, - const char *buf, size_t len) +static int f2fs_clear_qf_name(struct super_block *sb, int qtype) { - struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, - s_kobj); - struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); + struct f2fs_sb_info *sbi = F2FS_SB(sb); - return a->store ? a->store(a, sbi, buf, len) : 0; + if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) { + f2fs_msg(sb, KERN_ERR, "Cannot change journaled quota options" + " when quota turned on"); + return -EINVAL; + } + kfree(F2FS_OPTION(sbi).s_qf_names[qtype]); + F2FS_OPTION(sbi).s_qf_names[qtype] = NULL; + return 0; } -static void f2fs_sb_release(struct kobject *kobj) +static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) { - struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, - s_kobj); - complete(&sbi->s_kobj_unregister); -} - -#define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \ -static struct f2fs_attr f2fs_attr_##_name = { \ - .attr = {.name = __stringify(_name), .mode = _mode }, \ - .show = _show, \ - .store = _store, \ - .struct_type = _struct_type, \ - .offset = _offset \ -} - -#define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \ - F2FS_ATTR_OFFSET(struct_type, name, 0644, \ - f2fs_sbi_show, f2fs_sbi_store, \ - offsetof(struct struct_name, elname)) - -#define F2FS_GENERAL_RO_ATTR(name) \ -static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL) - -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time); -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time); -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time); -F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_idle, gc_idle); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, max_small_discards, max_discards); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util); -F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks); -F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh); -F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages); -F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]); -F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]); -#ifdef CONFIG_F2FS_FAULT_INJECTION -F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate); -F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type); -#endif -F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes); - -#define ATTR_LIST(name) (&f2fs_attr_##name.attr) -static struct attribute *f2fs_attrs[] = { - ATTR_LIST(gc_min_sleep_time), - ATTR_LIST(gc_max_sleep_time), - ATTR_LIST(gc_no_gc_sleep_time), - ATTR_LIST(gc_idle), - ATTR_LIST(reclaim_segments), - ATTR_LIST(max_small_discards), - ATTR_LIST(batched_trim_sections), - ATTR_LIST(ipu_policy), - ATTR_LIST(min_ipu_util), - ATTR_LIST(min_fsync_blocks), - ATTR_LIST(max_victim_search), - ATTR_LIST(dir_level), - ATTR_LIST(ram_thresh), - ATTR_LIST(ra_nid_pages), - ATTR_LIST(dirty_nats_ratio), - ATTR_LIST(cp_interval), - ATTR_LIST(idle_interval), -#ifdef CONFIG_F2FS_FAULT_INJECTION - ATTR_LIST(inject_rate), - ATTR_LIST(inject_type), -#endif - ATTR_LIST(lifetime_write_kbytes), - NULL, -}; - -static const struct sysfs_ops f2fs_attr_ops = { - .show = f2fs_attr_show, - .store = f2fs_attr_store, -}; + /* + * We do the test below only for project quotas. 'usrquota' and + * 'grpquota' mount options are allowed even without quota feature + * to support legacy quotas in quota files. + */ + if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi->sb)) { + f2fs_msg(sbi->sb, KERN_ERR, "Project quota feature not enabled. " + "Cannot enable project quota enforcement."); + return -1; + } + if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || + F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || + F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) { + if (test_opt(sbi, USRQUOTA) && + F2FS_OPTION(sbi).s_qf_names[USRQUOTA]) + clear_opt(sbi, USRQUOTA); -static struct kobj_type f2fs_ktype = { - .default_attrs = f2fs_attrs, - .sysfs_ops = &f2fs_attr_ops, - .release = f2fs_sb_release, -}; + if (test_opt(sbi, GRPQUOTA) && + F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]) + clear_opt(sbi, GRPQUOTA); -void f2fs_msg(struct super_block *sb, const char *level, const char *fmt, ...) -{ - struct va_format vaf; - va_list args; + if (test_opt(sbi, PRJQUOTA) && + F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) + clear_opt(sbi, PRJQUOTA); - va_start(args, fmt); - vaf.fmt = fmt; - vaf.va = &args; - printk("%sF2FS-fs (%s): %pV\n", level, sb->s_id, &vaf); - va_end(args); -} + if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || + test_opt(sbi, PRJQUOTA)) { + f2fs_msg(sbi->sb, KERN_ERR, "old and new quota " + "format mixing"); + return -1; + } -static void init_once(void *foo) -{ - struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; + if (!F2FS_OPTION(sbi).s_jquota_fmt) { + f2fs_msg(sbi->sb, KERN_ERR, "journaled quota format " + "not specified"); + return -1; + } + } - inode_init_once(&fi->vfs_inode); + if (f2fs_sb_has_quota_ino(sbi->sb) && F2FS_OPTION(sbi).s_jquota_fmt) { + f2fs_msg(sbi->sb, KERN_INFO, + "QUOTA feature is enabled, so ignore jquota_fmt"); + F2FS_OPTION(sbi).s_jquota_fmt = 0; + } + if (f2fs_sb_has_quota_ino(sbi->sb) && f2fs_readonly(sbi->sb)) { + f2fs_msg(sbi->sb, KERN_INFO, + "Filesystem with quota feature cannot be mounted RDWR " + "without CONFIG_QUOTA"); + return -1; + } + return 0; } +#endif static int parse_options(struct super_block *sb, char *options) { @@ -363,6 +364,11 @@ static int parse_options(struct super_bl substring_t args[MAX_OPT_ARGS]; char *p, *name; int arg = 0; + kuid_t uid; + kgid_t gid; +#ifdef CONFIG_QUOTA + int ret; +#endif if (!options) return 0; @@ -412,17 +418,26 @@ static int parse_options(struct super_bl q = bdev_get_queue(sb->s_bdev); if (blk_queue_discard(q)) { set_opt(sbi, DISCARD); - } else { + } else if (!f2fs_sb_has_blkzoned(sb)) { f2fs_msg(sb, KERN_WARNING, "mounting with \"discard\" option, but " "the device does not support discard"); } break; case Opt_nodiscard: + if (f2fs_sb_has_blkzoned(sb)) { + f2fs_msg(sb, KERN_WARNING, + "discard is required for zoned block devices"); + return -EINVAL; + } clear_opt(sbi, DISCARD); + break; case Opt_noheap: set_opt(sbi, NOHEAP); break; + case Opt_heap: + clear_opt(sbi, NOHEAP); + break; #ifdef CONFIG_F2FS_FS_XATTR case Opt_user_xattr: set_opt(sbi, XATTR_USER); @@ -433,6 +448,15 @@ static int parse_options(struct super_bl case Opt_inline_xattr: set_opt(sbi, INLINE_XATTR); break; + case Opt_noinline_xattr: + clear_opt(sbi, INLINE_XATTR); + break; + case Opt_inline_xattr_size: + if (args->from && match_int(args, &arg)) + return -EINVAL; + set_opt(sbi, INLINE_XATTR_SIZE); + F2FS_OPTION(sbi).inline_xattr_size = arg; + break; #else case Opt_user_xattr: f2fs_msg(sb, KERN_INFO, @@ -446,6 +470,10 @@ static int parse_options(struct super_bl f2fs_msg(sb, KERN_INFO, "inline_xattr options not supported"); break; + case Opt_noinline_xattr: + f2fs_msg(sb, KERN_INFO, + "noinline_xattr options not supported"); + break; #endif #ifdef CONFIG_F2FS_FS_POSIX_ACL case Opt_acl: @@ -467,7 +495,7 @@ static int parse_options(struct super_bl return -EINVAL; if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE) return -EINVAL; - sbi->active_logs = arg; + F2FS_OPTION(sbi).active_logs = arg; break; case Opt_disable_ext_identify: set_opt(sbi, DISABLE_EXT_IDENTIFY); @@ -505,6 +533,40 @@ static int parse_options(struct super_bl case Opt_data_flush: set_opt(sbi, DATA_FLUSH); break; + case Opt_reserve_root: + if (args->from && match_int(args, &arg)) + return -EINVAL; + if (test_opt(sbi, RESERVE_ROOT)) { + f2fs_msg(sb, KERN_INFO, + "Preserve previous reserve_root=%u", + F2FS_OPTION(sbi).root_reserved_blocks); + } else { + F2FS_OPTION(sbi).root_reserved_blocks = arg; + set_opt(sbi, RESERVE_ROOT); + } + break; + case Opt_resuid: + if (args->from && match_int(args, &arg)) + return -EINVAL; + uid = make_kuid(current_user_ns(), arg); + if (!uid_valid(uid)) { + f2fs_msg(sb, KERN_ERR, + "Invalid uid value %d", arg); + return -EINVAL; + } + F2FS_OPTION(sbi).s_resuid = uid; + break; + case Opt_resgid: + if (args->from && match_int(args, &arg)) + return -EINVAL; + gid = make_kgid(current_user_ns(), arg); + if (!gid_valid(gid)) { + f2fs_msg(sb, KERN_ERR, + "Invalid gid value %d", arg); + return -EINVAL; + } + F2FS_OPTION(sbi).s_resgid = gid; + break; case Opt_mode: name = match_strdup(&args[0]); @@ -512,6 +574,13 @@ static int parse_options(struct super_bl return -ENOMEM; if (strlen(name) == 8 && !strncmp(name, "adaptive", 8)) { + if (f2fs_sb_has_blkzoned(sb)) { + f2fs_msg(sb, KERN_WARNING, + "adaptive mode is not allowed with " + "zoned block device feature"); + kfree(name); + return -EINVAL; + } set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE); } else if (strlen(name) == 3 && !strncmp(name, "lfs", 3)) { @@ -522,11 +591,23 @@ static int parse_options(struct super_bl } kfree(name); break; + case Opt_io_size_bits: + if (args->from && match_int(args, &arg)) + return -EINVAL; + if (arg > __ilog2_u32(BIO_MAX_PAGES)) { + f2fs_msg(sb, KERN_WARNING, + "Not support %d, larger than %d", + 1 << arg, BIO_MAX_PAGES); + return -EINVAL; + } + F2FS_OPTION(sbi).write_io_size_bits = arg; + break; case Opt_fault_injection: if (args->from && match_int(args, &arg)) return -EINVAL; #ifdef CONFIG_F2FS_FAULT_INJECTION f2fs_build_fault_attr(sbi, arg); + set_opt(sbi, FAULT_INJECTION); #else f2fs_msg(sb, KERN_INFO, "FAULT_INJECTION was not selected"); @@ -538,6 +619,152 @@ static int parse_options(struct super_bl case Opt_nolazytime: sb->s_flags &= ~MS_LAZYTIME; break; +#ifdef CONFIG_QUOTA + case Opt_quota: + case Opt_usrquota: + set_opt(sbi, USRQUOTA); + break; + case Opt_grpquota: + set_opt(sbi, GRPQUOTA); + break; + case Opt_prjquota: + set_opt(sbi, PRJQUOTA); + break; + case Opt_usrjquota: + ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); + if (ret) + return ret; + break; + case Opt_grpjquota: + ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); + if (ret) + return ret; + break; + case Opt_prjjquota: + ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); + if (ret) + return ret; + break; + case Opt_offusrjquota: + ret = f2fs_clear_qf_name(sb, USRQUOTA); + if (ret) + return ret; + break; + case Opt_offgrpjquota: + ret = f2fs_clear_qf_name(sb, GRPQUOTA); + if (ret) + return ret; + break; + case Opt_offprjjquota: + ret = f2fs_clear_qf_name(sb, PRJQUOTA); + if (ret) + return ret; + break; + case Opt_jqfmt_vfsold: + F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD; + break; + case Opt_jqfmt_vfsv0: + F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0; + break; + case Opt_jqfmt_vfsv1: + F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1; + break; + case Opt_noquota: + clear_opt(sbi, QUOTA); + clear_opt(sbi, USRQUOTA); + clear_opt(sbi, GRPQUOTA); + clear_opt(sbi, PRJQUOTA); + break; +#else + case Opt_quota: + case Opt_usrquota: + case Opt_grpquota: + case Opt_prjquota: + case Opt_usrjquota: + case Opt_grpjquota: + case Opt_prjjquota: + case Opt_offusrjquota: + case Opt_offgrpjquota: + case Opt_offprjjquota: + case Opt_jqfmt_vfsold: + case Opt_jqfmt_vfsv0: + case Opt_jqfmt_vfsv1: + case Opt_noquota: + f2fs_msg(sb, KERN_INFO, + "quota operations not supported"); + break; +#endif + case Opt_whint: + name = match_strdup(&args[0]); + if (!name) + return -ENOMEM; + if (strlen(name) == 10 && + !strncmp(name, "user-based", 10)) { + F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER; + } else if (strlen(name) == 3 && + !strncmp(name, "off", 3)) { + F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; + } else if (strlen(name) == 8 && + !strncmp(name, "fs-based", 8)) { + F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS; + } else { + kfree(name); + return -EINVAL; + } + kfree(name); + break; + case Opt_alloc: + name = match_strdup(&args[0]); + if (!name) + return -ENOMEM; + + if (strlen(name) == 7 && + !strncmp(name, "default", 7)) { + F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT; + } else if (strlen(name) == 5 && + !strncmp(name, "reuse", 5)) { + F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE; + } else { + kfree(name); + return -EINVAL; + } + kfree(name); + break; + case Opt_fsync: + name = match_strdup(&args[0]); + if (!name) + return -ENOMEM; + if (strlen(name) == 5 && + !strncmp(name, "posix", 5)) { + F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX; + } else if (strlen(name) == 6 && + !strncmp(name, "strict", 6)) { + F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT; + } else if (strlen(name) == 9 && + !strncmp(name, "nobarrier", 9)) { + F2FS_OPTION(sbi).fsync_mode = + FSYNC_MODE_NOBARRIER; + } else { + kfree(name); + return -EINVAL; + } + kfree(name); + break; + case Opt_test_dummy_encryption: +#ifdef CONFIG_F2FS_FS_ENCRYPTION + if (!f2fs_sb_has_encrypt(sb)) { + f2fs_msg(sb, KERN_ERR, "Encrypt feature is off"); + return -EINVAL; + } + + F2FS_OPTION(sbi).test_dummy_encryption = true; + f2fs_msg(sb, KERN_INFO, + "Test dummy encryption mode enabled"); +#else + f2fs_msg(sb, KERN_INFO, + "Test dummy encryption mount option ignored"); +#endif + break; default: f2fs_msg(sb, KERN_ERR, "Unrecognized mount option \"%s\" or missing value", @@ -545,6 +772,49 @@ static int parse_options(struct super_bl return -EINVAL; } } +#ifdef CONFIG_QUOTA + if (f2fs_check_quota_options(sbi)) + return -EINVAL; +#endif + + if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) { + f2fs_msg(sb, KERN_ERR, + "Should set mode=lfs with %uKB-sized IO", + F2FS_IO_SIZE_KB(sbi)); + return -EINVAL; + } + + if (test_opt(sbi, INLINE_XATTR_SIZE)) { + if (!f2fs_sb_has_extra_attr(sb) || + !f2fs_sb_has_flexible_inline_xattr(sb)) { + f2fs_msg(sb, KERN_ERR, + "extra_attr or flexible_inline_xattr " + "feature is off"); + return -EINVAL; + } + if (!test_opt(sbi, INLINE_XATTR)) { + f2fs_msg(sb, KERN_ERR, + "inline_xattr_size option should be " + "set with inline_xattr option"); + return -EINVAL; + } + if (!F2FS_OPTION(sbi).inline_xattr_size || + F2FS_OPTION(sbi).inline_xattr_size >= + DEF_ADDRS_PER_INODE - + F2FS_TOTAL_EXTRA_ATTR_SIZE - + DEF_INLINE_RESERVED_SIZE - + DEF_MIN_INLINE_SIZE) { + f2fs_msg(sb, KERN_ERR, + "inline xattr size is out of range"); + return -EINVAL; + } + } + + /* Not pass down write hints if the number of active logs is lesser + * than NR_CURSEG_TYPE. + */ + if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE) + F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; return 0; } @@ -559,25 +829,28 @@ static struct inode *f2fs_alloc_inode(st init_once((void *) fi); /* Initialize f2fs-specific inode info */ - fi->vfs_inode.i_version = 1; atomic_set(&fi->dirty_pages, 0); fi->i_current_depth = 1; - fi->i_advise = 0; init_rwsem(&fi->i_sem); INIT_LIST_HEAD(&fi->dirty_list); INIT_LIST_HEAD(&fi->gdirty_list); + INIT_LIST_HEAD(&fi->inmem_ilist); INIT_LIST_HEAD(&fi->inmem_pages); mutex_init(&fi->inmem_lock); init_rwsem(&fi->dio_rwsem[READ]); init_rwsem(&fi->dio_rwsem[WRITE]); + init_rwsem(&fi->i_mmap_sem); + init_rwsem(&fi->i_xattr_sem); /* Will be used by directory only */ fi->i_dir_level = F2FS_SB(sb)->dir_level; + return &fi->vfs_inode; } static int f2fs_drop_inode(struct inode *inode) { + int ret; /* * This is to avoid a deadlock condition like below. * writeback_single_inode(inode) @@ -606,34 +879,36 @@ static int f2fs_drop_inode(struct inode sb_end_intwrite(inode->i_sb); - fscrypt_put_encryption_info(inode, NULL); spin_lock(&inode->i_lock); atomic_dec(&inode->i_count); } + trace_f2fs_drop_inode(inode, 0); return 0; } - - return generic_drop_inode(inode); + ret = generic_drop_inode(inode); + trace_f2fs_drop_inode(inode, ret); + return ret; } -int f2fs_inode_dirtied(struct inode *inode) +int f2fs_inode_dirtied(struct inode *inode, bool sync) { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + int ret = 0; spin_lock(&sbi->inode_lock[DIRTY_META]); if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { - spin_unlock(&sbi->inode_lock[DIRTY_META]); - return 1; + ret = 1; + } else { + set_inode_flag(inode, FI_DIRTY_INODE); + stat_inc_dirty_inode(sbi, DIRTY_META); } - - set_inode_flag(inode, FI_DIRTY_INODE); - list_add_tail(&F2FS_I(inode)->gdirty_list, + if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { + list_add_tail(&F2FS_I(inode)->gdirty_list, &sbi->inode_list[DIRTY_META]); - inc_page_count(sbi, F2FS_DIRTY_IMETA); - stat_inc_dirty_inode(sbi, DIRTY_META); + inc_page_count(sbi, F2FS_DIRTY_IMETA); + } spin_unlock(&sbi->inode_lock[DIRTY_META]); - - return 0; + return ret; } void f2fs_inode_synced(struct inode *inode) @@ -645,10 +920,12 @@ void f2fs_inode_synced(struct inode *ino spin_unlock(&sbi->inode_lock[DIRTY_META]); return; } - list_del_init(&F2FS_I(inode)->gdirty_list); + if (!list_empty(&F2FS_I(inode)->gdirty_list)) { + list_del_init(&F2FS_I(inode)->gdirty_list); + dec_page_count(sbi, F2FS_DIRTY_IMETA); + } clear_inode_flag(inode, FI_DIRTY_INODE); clear_inode_flag(inode, FI_AUTO_RECOVER); - dec_page_count(sbi, F2FS_DIRTY_IMETA); stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); spin_unlock(&sbi->inode_lock[DIRTY_META]); } @@ -672,7 +949,7 @@ static void f2fs_dirty_inode(struct inod if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) clear_inode_flag(inode, FI_AUTO_RECOVER); - f2fs_inode_dirtied(inode); + f2fs_inode_dirtied(inode, false); } static void f2fs_i_callback(struct rcu_head *head) @@ -692,18 +969,26 @@ static void destroy_percpu_info(struct f percpu_counter_destroy(&sbi->total_valid_inode_count); } -static void f2fs_put_super(struct super_block *sb) +static void destroy_device_list(struct f2fs_sb_info *sbi) { - struct f2fs_sb_info *sbi = F2FS_SB(sb); + int i; - if (sbi->s_proc) { - remove_proc_entry("segment_info", sbi->s_proc); - remove_proc_entry("segment_bits", sbi->s_proc); - remove_proc_entry(sb->s_id, f2fs_proc_root); + for (i = 0; i < sbi->s_ndevs; i++) { + blkdev_put(FDEV(i).bdev, FMODE_EXCL); +#ifdef CONFIG_BLK_DEV_ZONED + kfree(FDEV(i).blkz_type); +#endif } - kobject_del(&sbi->s_kobj); + kfree(sbi->devs); +} - stop_gc_thread(sbi); +static void f2fs_put_super(struct super_block *sb) +{ + struct f2fs_sb_info *sbi = F2FS_SB(sb); + int i; + bool dropped; + + f2fs_quota_off_umount(sb); /* prevent remaining shrinker jobs */ mutex_lock(&sbi->umount_mutex); @@ -721,6 +1006,16 @@ static void f2fs_put_super(struct super_ write_checkpoint(sbi, &cpc); } + /* be sure to wait for any on-going discard commands */ + dropped = f2fs_wait_discard_bios(sbi); + + if (f2fs_discard_en(sbi) && !sbi->discard_blks && !dropped) { + struct cp_control cpc = { + .reason = CP_UMOUNT | CP_TRIMMED, + }; + write_checkpoint(sbi, &cpc); + } + /* write_checkpoint can update stat informaion */ f2fs_destroy_stats(sbi); @@ -729,13 +1024,12 @@ static void f2fs_put_super(struct super_ * In addition, EIO will skip do checkpoint, we need this as well. */ release_ino_entry(sbi, true); - release_discard_addrs(sbi); f2fs_leave_shrinker(sbi); mutex_unlock(&sbi->umount_mutex); /* our cp_error case, we can wait for any writeback page */ - f2fs_flush_merged_bios(sbi); + f2fs_flush_merged_writes(sbi); iput(sbi->node_inode); iput(sbi->meta_inode); @@ -745,15 +1039,23 @@ static void f2fs_put_super(struct super_ destroy_segment_manager(sbi); kfree(sbi->ckpt); - kobject_put(&sbi->s_kobj); - wait_for_completion(&sbi->s_kobj_unregister); + + f2fs_unregister_sysfs(sbi); sb->s_fs_info = NULL; if (sbi->s_chksum_driver) crypto_free_shash(sbi->s_chksum_driver); kfree(sbi->raw_super); + destroy_device_list(sbi); + mempool_destroy(sbi->write_io_dummy); +#ifdef CONFIG_QUOTA + for (i = 0; i < MAXQUOTAS; i++) + kfree(F2FS_OPTION(sbi).s_qf_names[i]); +#endif destroy_percpu_info(sbi); + for (i = 0; i < NR_PAGE_TYPE; i++) + kfree(sbi->write_io[i]); kfree(sbi); } @@ -762,8 +1064,14 @@ int f2fs_sync_fs(struct super_block *sb, struct f2fs_sb_info *sbi = F2FS_SB(sb); int err = 0; + if (unlikely(f2fs_cp_error(sbi))) + return 0; + trace_f2fs_sync_fs(sb, sync); + if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) + return -EAGAIN; + if (sync) { struct cp_control cpc; @@ -780,13 +1088,17 @@ int f2fs_sync_fs(struct super_block *sb, static int f2fs_freeze(struct super_block *sb) { - int err; - if (f2fs_readonly(sb)) return 0; - err = f2fs_sync_fs(sb, 1); - return err; + /* IO error happened before */ + if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) + return -EIO; + + /* must be clean, since sync_filesystem() was already called */ + if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) + return -EINVAL; + return 0; } static int f2fs_unfreeze(struct super_block *sb) @@ -794,34 +1106,133 @@ static int f2fs_unfreeze(struct super_bl return 0; } +#ifdef CONFIG_QUOTA +static int f2fs_statfs_project(struct super_block *sb, + kprojid_t projid, struct kstatfs *buf) +{ + struct kqid qid; + struct dquot *dquot; + u64 limit; + u64 curblock; + + qid = make_kqid_projid(projid); + dquot = dqget(sb, qid); + if (IS_ERR(dquot)) + return PTR_ERR(dquot); + spin_lock(&dq_data_lock); + + limit = (dquot->dq_dqb.dqb_bsoftlimit ? + dquot->dq_dqb.dqb_bsoftlimit : + dquot->dq_dqb.dqb_bhardlimit) >> sb->s_blocksize_bits; + if (limit && buf->f_blocks > limit) { + curblock = dquot->dq_dqb.dqb_curspace >> sb->s_blocksize_bits; + buf->f_blocks = limit; + buf->f_bfree = buf->f_bavail = + (buf->f_blocks > curblock) ? + (buf->f_blocks - curblock) : 0; + } + + limit = dquot->dq_dqb.dqb_isoftlimit ? + dquot->dq_dqb.dqb_isoftlimit : + dquot->dq_dqb.dqb_ihardlimit; + if (limit && buf->f_files > limit) { + buf->f_files = limit; + buf->f_ffree = + (buf->f_files > dquot->dq_dqb.dqb_curinodes) ? + (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; + } + + spin_unlock(&dq_data_lock); + dqput(dquot); + return 0; +} +#endif + static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) { struct super_block *sb = dentry->d_sb; struct f2fs_sb_info *sbi = F2FS_SB(sb); u64 id = huge_encode_dev(sb->s_bdev->bd_dev); - block_t total_count, user_block_count, start_count, ovp_count; + block_t total_count, user_block_count, start_count; + u64 avail_node_count; total_count = le64_to_cpu(sbi->raw_super->block_count); user_block_count = sbi->user_block_count; start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); - ovp_count = SM_I(sbi)->ovp_segments << sbi->log_blocks_per_seg; buf->f_type = F2FS_SUPER_MAGIC; buf->f_bsize = sbi->blocksize; buf->f_blocks = total_count - start_count; - buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; - buf->f_bavail = user_block_count - valid_user_blocks(sbi); + buf->f_bfree = user_block_count - valid_user_blocks(sbi) - + sbi->current_reserved_blocks; + if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks) + buf->f_bavail = buf->f_bfree - + F2FS_OPTION(sbi).root_reserved_blocks; + else + buf->f_bavail = 0; - buf->f_files = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; - buf->f_ffree = buf->f_files - valid_inode_count(sbi); + avail_node_count = sbi->total_node_count - sbi->nquota_files - + F2FS_RESERVED_NODE_NUM; + + if (avail_node_count > user_block_count) { + buf->f_files = user_block_count; + buf->f_ffree = buf->f_bavail; + } else { + buf->f_files = avail_node_count; + buf->f_ffree = min(avail_node_count - valid_node_count(sbi), + buf->f_bavail); + } buf->f_namelen = F2FS_NAME_LEN; buf->f_fsid.val[0] = (u32)id; buf->f_fsid.val[1] = (u32)(id >> 32); +#ifdef CONFIG_QUOTA + if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && + sb_has_quota_limits_enabled(sb, PRJQUOTA)) { + f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); + } +#endif return 0; } +static inline void f2fs_show_quota_options(struct seq_file *seq, + struct super_block *sb) +{ +#ifdef CONFIG_QUOTA + struct f2fs_sb_info *sbi = F2FS_SB(sb); + + if (F2FS_OPTION(sbi).s_jquota_fmt) { + char *fmtname = ""; + + switch (F2FS_OPTION(sbi).s_jquota_fmt) { + case QFMT_VFS_OLD: + fmtname = "vfsold"; + break; + case QFMT_VFS_V0: + fmtname = "vfsv0"; + break; + case QFMT_VFS_V1: + fmtname = "vfsv1"; + break; + } + seq_printf(seq, ",jqfmt=%s", fmtname); + } + + if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA]) + seq_show_option(seq, "usrjquota", + F2FS_OPTION(sbi).s_qf_names[USRQUOTA]); + + if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]) + seq_show_option(seq, "grpjquota", + F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]); + + if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) + seq_show_option(seq, "prjjquota", + F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]); +#endif +} + static int f2fs_show_options(struct seq_file *seq, struct dentry *root) { struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); @@ -839,7 +1250,9 @@ static int f2fs_show_options(struct seq_ if (test_opt(sbi, DISCARD)) seq_puts(seq, ",discard"); if (test_opt(sbi, NOHEAP)) - seq_puts(seq, ",no_heap_alloc"); + seq_puts(seq, ",no_heap"); + else + seq_puts(seq, ",heap"); #ifdef CONFIG_F2FS_FS_XATTR if (test_opt(sbi, XATTR_USER)) seq_puts(seq, ",user_xattr"); @@ -847,6 +1260,11 @@ static int f2fs_show_options(struct seq_ seq_puts(seq, ",nouser_xattr"); if (test_opt(sbi, INLINE_XATTR)) seq_puts(seq, ",inline_xattr"); + else + seq_puts(seq, ",noinline_xattr"); + if (test_opt(sbi, INLINE_XATTR_SIZE)) + seq_printf(seq, ",inline_xattr_size=%u", + F2FS_OPTION(sbi).inline_xattr_size); #endif #ifdef CONFIG_F2FS_FS_POSIX_ACL if (test_opt(sbi, POSIX_ACL)) @@ -882,90 +1300,73 @@ static int f2fs_show_options(struct seq_ seq_puts(seq, "adaptive"); else if (test_opt(sbi, LFS)) seq_puts(seq, "lfs"); - seq_printf(seq, ",active_logs=%u", sbi->active_logs); - - return 0; -} - -static int segment_info_seq_show(struct seq_file *seq, void *offset) -{ - struct super_block *sb = seq->private; - struct f2fs_sb_info *sbi = F2FS_SB(sb); - unsigned int total_segs = - le32_to_cpu(sbi->raw_super->segment_count_main); - int i; - - seq_puts(seq, "format: segment_type|valid_blocks\n" - "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n"); - - for (i = 0; i < total_segs; i++) { - struct seg_entry *se = get_seg_entry(sbi, i); - - if ((i % 10) == 0) - seq_printf(seq, "%-10d", i); - seq_printf(seq, "%d|%-3u", se->type, - get_valid_blocks(sbi, i, 1)); - if ((i % 10) == 9 || i == (total_segs - 1)) - seq_putc(seq, '\n'); - else - seq_putc(seq, ' '); - } - - return 0; -} - -static int segment_bits_seq_show(struct seq_file *seq, void *offset) -{ - struct super_block *sb = seq->private; - struct f2fs_sb_info *sbi = F2FS_SB(sb); - unsigned int total_segs = - le32_to_cpu(sbi->raw_super->segment_count_main); - int i, j; - - seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n" - "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n"); + seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs); + if (test_opt(sbi, RESERVE_ROOT)) + seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u", + F2FS_OPTION(sbi).root_reserved_blocks, + from_kuid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resuid), + from_kgid_munged(&init_user_ns, + F2FS_OPTION(sbi).s_resgid)); + if (F2FS_IO_SIZE_BITS(sbi)) + seq_printf(seq, ",io_size=%uKB", F2FS_IO_SIZE_KB(sbi)); +#ifdef CONFIG_F2FS_FAULT_INJECTION + if (test_opt(sbi, FAULT_INJECTION)) + seq_printf(seq, ",fault_injection=%u", + F2FS_OPTION(sbi).fault_info.inject_rate); +#endif +#ifdef CONFIG_QUOTA + if (test_opt(sbi, QUOTA)) + seq_puts(seq, ",quota"); + if (test_opt(sbi, USRQUOTA)) + seq_puts(seq, ",usrquota"); + if (test_opt(sbi, GRPQUOTA)) + seq_puts(seq, ",grpquota"); + if (test_opt(sbi, PRJQUOTA)) + seq_puts(seq, ",prjquota"); +#endif + f2fs_show_quota_options(seq, sbi->sb); + if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER) + seq_printf(seq, ",whint_mode=%s", "user-based"); + else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS) + seq_printf(seq, ",whint_mode=%s", "fs-based"); +#ifdef CONFIG_F2FS_FS_ENCRYPTION + if (F2FS_OPTION(sbi).test_dummy_encryption) + seq_puts(seq, ",test_dummy_encryption"); +#endif - for (i = 0; i < total_segs; i++) { - struct seg_entry *se = get_seg_entry(sbi, i); + if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT) + seq_printf(seq, ",alloc_mode=%s", "default"); + else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE) + seq_printf(seq, ",alloc_mode=%s", "reuse"); - seq_printf(seq, "%-10d", i); - seq_printf(seq, "%d|%-3u|", se->type, - get_valid_blocks(sbi, i, 1)); - for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++) - seq_printf(seq, " %.2x", se->cur_valid_map[j]); - seq_putc(seq, '\n'); - } + if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX) + seq_printf(seq, ",fsync_mode=%s", "posix"); + else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) + seq_printf(seq, ",fsync_mode=%s", "strict"); return 0; } -#define F2FS_PROC_FILE_DEF(_name) \ -static int _name##_open_fs(struct inode *inode, struct file *file) \ -{ \ - return single_open(file, _name##_seq_show, PDE_DATA(inode)); \ -} \ - \ -static const struct file_operations f2fs_seq_##_name##_fops = { \ - .open = _name##_open_fs, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .release = single_release, \ -}; - -F2FS_PROC_FILE_DEF(segment_info); -F2FS_PROC_FILE_DEF(segment_bits); - static void default_options(struct f2fs_sb_info *sbi) { /* init some FS parameters */ - sbi->active_logs = NR_CURSEG_TYPE; + F2FS_OPTION(sbi).active_logs = NR_CURSEG_TYPE; + F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; + F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; + F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT; + F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX; + F2FS_OPTION(sbi).test_dummy_encryption = false; + sbi->readdir_ra = 1; set_opt(sbi, BG_GC); + set_opt(sbi, INLINE_XATTR); set_opt(sbi, INLINE_DATA); set_opt(sbi, INLINE_DENTRY); set_opt(sbi, EXTENT_CACHE); + set_opt(sbi, NOHEAP); sbi->sb->s_flags |= MS_LAZYTIME; set_opt(sbi, FLUSH_MERGE); - if (f2fs_sb_mounted_hmsmr(sbi->sb)) { + if (f2fs_sb_has_blkzoned(sbi->sb)) { set_opt_mode(sbi, F2FS_MOUNT_LFS); set_opt(sbi, DISCARD); } else { @@ -984,16 +1385,20 @@ static void default_options(struct f2fs_ #endif } +#ifdef CONFIG_QUOTA +static int f2fs_enable_quotas(struct super_block *sb); +#endif static int f2fs_remount(struct super_block *sb, int *flags, char *data) { struct f2fs_sb_info *sbi = F2FS_SB(sb); struct f2fs_mount_info org_mount_opt; - int err, active_logs; + unsigned long old_sb_flags; + int err; bool need_restart_gc = false; bool need_stop_gc = false; bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); -#ifdef CONFIG_F2FS_FAULT_INJECTION - struct f2fs_fault_info ffi = sbi->fault_info; +#ifdef CONFIG_QUOTA + int i, j; #endif /* @@ -1001,7 +1406,25 @@ static int f2fs_remount(struct super_blo * need to restore them. */ org_mount_opt = sbi->mount_opt; - active_logs = sbi->active_logs; + old_sb_flags = sb->s_flags; + +#ifdef CONFIG_QUOTA + org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt; + for (i = 0; i < MAXQUOTAS; i++) { + if (F2FS_OPTION(sbi).s_qf_names[i]) { + org_mount_opt.s_qf_names[i] = + kstrdup(F2FS_OPTION(sbi).s_qf_names[i], + GFP_KERNEL); + if (!org_mount_opt.s_qf_names[i]) { + for (j = 0; j < i; j++) + kfree(org_mount_opt.s_qf_names[j]); + return -ENOMEM; + } + } else { + org_mount_opt.s_qf_names[i] = NULL; + } + } +#endif /* recover superblocks we couldn't write due to previous RO mount */ if (!(*flags & MS_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { @@ -1012,7 +1435,6 @@ static int f2fs_remount(struct super_blo clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); } - sbi->mount_opt.opt = 0; default_options(sbi); /* parse mount options */ @@ -1027,6 +1449,23 @@ static int f2fs_remount(struct super_blo if (f2fs_readonly(sb) && (*flags & MS_RDONLY)) goto skip; +#ifdef CONFIG_QUOTA + if (!f2fs_readonly(sb) && (*flags & MS_RDONLY)) { + err = dquot_suspend(sb, -1); + if (err < 0) + goto restore_opts; + } else if (f2fs_readonly(sb) && !(*flags & MS_RDONLY)) { + /* dquot_resume needs RW */ + sb->s_flags &= ~MS_RDONLY; + if (sb_any_quota_suspended(sb)) { + dquot_resume(sb, -1); + } else if (f2fs_sb_has_quota_ino(sb)) { + err = f2fs_enable_quotas(sb); + if (err) + goto restore_opts; + } + } +#endif /* disallow enable/disable extent_cache dynamically */ if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { err = -EINVAL; @@ -1052,7 +1491,8 @@ static int f2fs_remount(struct super_blo need_stop_gc = true; } - if (*flags & MS_RDONLY) { + if (*flags & MS_RDONLY || + F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) { writeback_inodes_sb(sb, WB_REASON_SYNC); sync_inodes_sb(sb); @@ -1067,17 +1507,24 @@ static int f2fs_remount(struct super_blo * or if flush_merge is not passed in mount option. */ if ((*flags & MS_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { - destroy_flush_cmd_control(sbi); - } else if (!SM_I(sbi)->cmd_control_info) { + clear_opt(sbi, FLUSH_MERGE); + destroy_flush_cmd_control(sbi, false); + } else { err = create_flush_cmd_control(sbi); if (err) goto restore_gc; } skip: +#ifdef CONFIG_QUOTA + /* Release old quota file names */ + for (i = 0; i < MAXQUOTAS; i++) + kfree(org_mount_opt.s_qf_names[i]); +#endif /* Update the POSIXACL Flag */ sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); + limit_reserve_root(sbi); return 0; restore_gc: if (need_restart_gc) { @@ -1088,21 +1535,363 @@ restore_gc: stop_gc_thread(sbi); } restore_opts: - sbi->mount_opt = org_mount_opt; - sbi->active_logs = active_logs; -#ifdef CONFIG_F2FS_FAULT_INJECTION - sbi->fault_info = ffi; +#ifdef CONFIG_QUOTA + F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt; + for (i = 0; i < MAXQUOTAS; i++) { + kfree(F2FS_OPTION(sbi).s_qf_names[i]); + F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i]; + } #endif + sbi->mount_opt = org_mount_opt; + sb->s_flags = old_sb_flags; return err; } -static struct super_operations f2fs_sops = { +#ifdef CONFIG_QUOTA +/* Read data from quotafile */ +static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, + size_t len, loff_t off) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + struct address_space *mapping = inode->i_mapping; + block_t blkidx = F2FS_BYTES_TO_BLK(off); + int offset = off & (sb->s_blocksize - 1); + int tocopy; + size_t toread; + loff_t i_size = i_size_read(inode); + struct page *page; + char *kaddr; + + if (off > i_size) + return 0; + + if (off + len > i_size) + len = i_size - off; + toread = len; + while (toread > 0) { + tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); +repeat: + page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS); + if (IS_ERR(page)) { + if (PTR_ERR(page) == -ENOMEM) { + congestion_wait(BLK_RW_ASYNC, HZ/50); + goto repeat; + } + return PTR_ERR(page); + } + + lock_page(page); + + if (unlikely(page->mapping != mapping)) { + f2fs_put_page(page, 1); + goto repeat; + } + if (unlikely(!PageUptodate(page))) { + f2fs_put_page(page, 1); + return -EIO; + } + + kaddr = kmap_atomic(page); + memcpy(data, kaddr + offset, tocopy); + kunmap_atomic(kaddr); + f2fs_put_page(page, 1); + + offset = 0; + toread -= tocopy; + data += tocopy; + blkidx++; + } + return len; +} + +/* Write to quotafile */ +static ssize_t f2fs_quota_write(struct super_block *sb, int type, + const char *data, size_t len, loff_t off) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + struct address_space *mapping = inode->i_mapping; + const struct address_space_operations *a_ops = mapping->a_ops; + int offset = off & (sb->s_blocksize - 1); + size_t towrite = len; + struct page *page; + char *kaddr; + int err = 0; + int tocopy; + + while (towrite > 0) { + tocopy = min_t(unsigned long, sb->s_blocksize - offset, + towrite); +retry: + err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, + &page, NULL); + if (unlikely(err)) { + if (err == -ENOMEM) { + congestion_wait(BLK_RW_ASYNC, HZ/50); + goto retry; + } + break; + } + + kaddr = kmap_atomic(page); + memcpy(kaddr + offset, data, tocopy); + kunmap_atomic(kaddr); + flush_dcache_page(page); + + a_ops->write_end(NULL, mapping, off, tocopy, tocopy, + page, NULL); + offset = 0; + towrite -= tocopy; + off += tocopy; + data += tocopy; + cond_resched(); + } + + if (len == towrite) + return err; + inode->i_mtime = inode->i_ctime = current_time(inode); + f2fs_mark_inode_dirty_sync(inode, false); + return len - towrite; +} + +static struct dquot **f2fs_get_dquots(struct inode *inode) +{ + return F2FS_I(inode)->i_dquot; +} + +static qsize_t *f2fs_get_reserved_space(struct inode *inode) +{ + return &F2FS_I(inode)->i_reserved_quota; +} + +static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) +{ + return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type], + F2FS_OPTION(sbi).s_jquota_fmt, type); +} + +int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) +{ + int enabled = 0; + int i, err; + + if (f2fs_sb_has_quota_ino(sbi->sb) && rdonly) { + err = f2fs_enable_quotas(sbi->sb); + if (err) { + f2fs_msg(sbi->sb, KERN_ERR, + "Cannot turn on quota_ino: %d", err); + return 0; + } + return 1; + } + + for (i = 0; i < MAXQUOTAS; i++) { + if (F2FS_OPTION(sbi).s_qf_names[i]) { + err = f2fs_quota_on_mount(sbi, i); + if (!err) { + enabled = 1; + continue; + } + f2fs_msg(sbi->sb, KERN_ERR, + "Cannot turn on quotas: %d on %d", err, i); + } + } + return enabled; +} + +static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, + unsigned int flags) +{ + struct inode *qf_inode; + unsigned long qf_inum; + int err; + + BUG_ON(!f2fs_sb_has_quota_ino(sb)); + + qf_inum = f2fs_qf_ino(sb, type); + if (!qf_inum) + return -EPERM; + + qf_inode = f2fs_iget(sb, qf_inum); + if (IS_ERR(qf_inode)) { + f2fs_msg(sb, KERN_ERR, + "Bad quota inode %u:%lu", type, qf_inum); + return PTR_ERR(qf_inode); + } + + /* Don't account quota for quota files to avoid recursion */ + qf_inode->i_flags |= S_NOQUOTA; + err = dquot_enable(qf_inode, type, format_id, flags); + iput(qf_inode); + return err; +} + +static int f2fs_enable_quotas(struct super_block *sb) +{ + int type, err = 0; + unsigned long qf_inum; + bool quota_mopt[MAXQUOTAS] = { + test_opt(F2FS_SB(sb), USRQUOTA), + test_opt(F2FS_SB(sb), GRPQUOTA), + test_opt(F2FS_SB(sb), PRJQUOTA), + }; + + sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE; + for (type = 0; type < MAXQUOTAS; type++) { + qf_inum = f2fs_qf_ino(sb, type); + if (qf_inum) { + err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, + DQUOT_USAGE_ENABLED | + (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); + if (err) { + f2fs_msg(sb, KERN_ERR, + "Failed to enable quota tracking " + "(type=%d, err=%d). Please run " + "fsck to fix.", type, err); + for (type--; type >= 0; type--) + dquot_quota_off(sb, type); + return err; + } + } + } + return 0; +} + +static int f2fs_quota_sync(struct super_block *sb, int type) +{ + struct quota_info *dqopt = sb_dqopt(sb); + int cnt; + int ret; + + ret = dquot_writeback_dquots(sb, type); + if (ret) + return ret; + + /* + * Now when everything is written we can discard the pagecache so + * that userspace sees the changes. + */ + for (cnt = 0; cnt < MAXQUOTAS; cnt++) { + if (type != -1 && cnt != type) + continue; + if (!sb_has_quota_active(sb, cnt)) + continue; + + ret = filemap_write_and_wait(dqopt->files[cnt]->i_mapping); + if (ret) + return ret; + + inode_lock(dqopt->files[cnt]); + truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); + inode_unlock(dqopt->files[cnt]); + } + return 0; +} + +static int f2fs_quota_on(struct super_block *sb, int type, int format_id, + struct path *path) +{ + struct inode *inode; + int err; + + err = f2fs_quota_sync(sb, type); + if (err) + return err; + + err = dquot_quota_on(sb, type, format_id, path); + if (err) + return err; + + inode = d_inode(path->dentry); + + inode_lock(inode); + F2FS_I(inode)->i_flags |= FS_NOATIME_FL | FS_IMMUTABLE_FL; + inode_set_flags(inode, S_NOATIME | S_IMMUTABLE, + S_NOATIME | S_IMMUTABLE); + inode_unlock(inode); + f2fs_mark_inode_dirty_sync(inode, false); + + return 0; +} + +static int f2fs_quota_off(struct super_block *sb, int type) +{ + struct inode *inode = sb_dqopt(sb)->files[type]; + int err; + + if (!inode || !igrab(inode)) + return dquot_quota_off(sb, type); + + f2fs_quota_sync(sb, type); + + err = dquot_quota_off(sb, type); + if (err || f2fs_sb_has_quota_ino(sb)) + goto out_put; + + inode_lock(inode); + F2FS_I(inode)->i_flags &= ~(FS_NOATIME_FL | FS_IMMUTABLE_FL); + inode_set_flags(inode, 0, S_NOATIME | S_IMMUTABLE); + inode_unlock(inode); + f2fs_mark_inode_dirty_sync(inode, false); +out_put: + iput(inode); + return err; +} + +void f2fs_quota_off_umount(struct super_block *sb) +{ + int type; + + for (type = 0; type < MAXQUOTAS; type++) + f2fs_quota_off(sb, type); +} + +static int f2fs_get_projid(struct inode *inode, kprojid_t *projid) +{ + *projid = F2FS_I(inode)->i_projid; + return 0; +} + +static const struct dquot_operations f2fs_quota_operations = { + .get_reserved_space = f2fs_get_reserved_space, + .write_dquot = dquot_commit, + .acquire_dquot = dquot_acquire, + .release_dquot = dquot_release, + .mark_dirty = dquot_mark_dquot_dirty, + .write_info = dquot_commit_info, + .alloc_dquot = dquot_alloc, + .destroy_dquot = dquot_destroy, + .get_projid = f2fs_get_projid, + .get_next_id = dquot_get_next_id, +}; + +static const struct quotactl_ops f2fs_quotactl_ops = { + .quota_on = f2fs_quota_on, + .quota_off = f2fs_quota_off, + .quota_sync = f2fs_quota_sync, + .get_state = dquot_get_state, + .set_info = dquot_set_dqinfo, + .get_dqblk = dquot_get_dqblk, + .set_dqblk = dquot_set_dqblk, + .get_nextdqblk = dquot_get_next_dqblk, +}; +#else +void f2fs_quota_off_umount(struct super_block *sb) +{ +} +#endif + +static const struct super_operations f2fs_sops = { .alloc_inode = f2fs_alloc_inode, .drop_inode = f2fs_drop_inode, .destroy_inode = f2fs_destroy_inode, .write_inode = f2fs_write_inode, .dirty_inode = f2fs_dirty_inode, .show_options = f2fs_show_options, +#ifdef CONFIG_QUOTA + .quota_read = f2fs_quota_read, + .quota_write = f2fs_quota_write, + .get_dquots = f2fs_get_dquots, +#endif .evict_inode = f2fs_evict_inode, .put_super = f2fs_put_super, .sync_fs = f2fs_sync_fs, @@ -1120,38 +1909,45 @@ static int f2fs_get_context(struct inode ctx, len, NULL); } -static int f2fs_key_prefix(struct inode *inode, u8 **key) -{ - *key = F2FS_I_SB(inode)->key_prefix; - return F2FS_I_SB(inode)->key_prefix_size; -} - static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, void *fs_data) { + struct f2fs_sb_info *sbi = F2FS_I_SB(inode); + + /* + * Encrypting the root directory is not allowed because fsck + * expects lost+found directory to exist and remain unencrypted + * if LOST_FOUND feature is enabled. + * + */ + if (f2fs_sb_has_lost_found(sbi->sb) && + inode->i_ino == F2FS_ROOT_INO(sbi)) + return -EPERM; + return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, ctx, len, fs_data, XATTR_CREATE); } +static bool f2fs_dummy_context(struct inode *inode) +{ + return DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(inode)); +} + static unsigned f2fs_max_namelen(struct inode *inode) { return S_ISLNK(inode->i_mode) ? inode->i_sb->s_blocksize : F2FS_NAME_LEN; } -static struct fscrypt_operations f2fs_cryptops = { +static const struct fscrypt_operations f2fs_cryptops = { + .key_prefix = "f2fs:", .get_context = f2fs_get_context, - .key_prefix = f2fs_key_prefix, .set_context = f2fs_set_context, - .is_encrypted = f2fs_encrypted_inode, + .dummy_context = f2fs_dummy_context, .empty_dir = f2fs_empty_dir, .max_namelen = f2fs_max_namelen, }; -#else -static struct fscrypt_operations f2fs_cryptops = { - .is_encrypted = f2fs_encrypted_inode, -}; #endif static struct inode *f2fs_nfs_get_inode(struct super_block *sb, @@ -1201,9 +1997,16 @@ static const struct export_operations f2 static loff_t max_file_blocks(void) { - loff_t result = (DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS); + loff_t result = 0; loff_t leaf_count = ADDRS_PER_BLOCK; + /* + * note: previously, result is equal to (DEF_ADDRS_PER_INODE - + * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more + * space in inode.i_addr, it will be more safe to reassign + * result as zero. + */ + /* two direct node blocks */ result += (leaf_count * 2); @@ -1224,12 +2027,11 @@ static int __f2fs_commit_super(struct bu lock_buffer(bh); if (super) memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); - set_buffer_uptodate(bh); set_buffer_dirty(bh); unlock_buffer(bh); /* it's rare case, we can do fua all the time */ - return __sync_dirty_buffer(bh, WRITE_FLUSH_FUA); + return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); } static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, @@ -1424,6 +2226,7 @@ int sanity_check_ckpt(struct f2fs_sb_inf unsigned int total, fsmeta; struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); + unsigned int ovp_segments, reserved_segments; unsigned int main_segs, blocks_per_seg; int i; @@ -1437,6 +2240,16 @@ int sanity_check_ckpt(struct f2fs_sb_inf if (unlikely(fsmeta >= total)) return 1; + ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); + reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); + + if (unlikely(fsmeta < F2FS_MIN_SEGMENTS || + ovp_segments == 0 || reserved_segments == 0)) { + f2fs_msg(sbi->sb, KERN_ERR, + "Wrong layout: check mkfs.f2fs version"); + return 1; + } + main_segs = le32_to_cpu(raw_super->segment_count_main); blocks_per_seg = sbi->blocks_per_seg; @@ -1461,7 +2274,7 @@ int sanity_check_ckpt(struct f2fs_sb_inf static void init_sb_info(struct f2fs_sb_info *sbi) { struct f2fs_super_block *raw_super = sbi->raw_super; - int i; + int i, j; sbi->log_sectors_per_block = le32_to_cpu(raw_super->log_sectors_per_block); @@ -1489,17 +2302,19 @@ static void init_sb_info(struct f2fs_sb_ for (i = 0; i < NR_COUNT_TYPE; i++) atomic_set(&sbi->nr_pages[i], 0); + atomic_set(&sbi->wb_sync_req, 0); + INIT_LIST_HEAD(&sbi->s_list); mutex_init(&sbi->umount_mutex); - mutex_init(&sbi->wio_mutex[NODE]); - mutex_init(&sbi->wio_mutex[DATA]); + for (i = 0; i < NR_PAGE_TYPE - 1; i++) + for (j = HOT; j < NR_TEMP_TYPE; j++) + mutex_init(&sbi->wio_mutex[i][j]); spin_lock_init(&sbi->cp_lock); -#ifdef CONFIG_F2FS_FS_ENCRYPTION - memcpy(sbi->key_prefix, F2FS_KEY_DESC_PREFIX, - F2FS_KEY_DESC_PREFIX_SIZE); - sbi->key_prefix_size = F2FS_KEY_DESC_PREFIX_SIZE; -#endif + sbi->dirty_device = 0; + spin_lock_init(&sbi->dev_lock); + + init_rwsem(&sbi->sb_lock); } static int init_percpu_info(struct f2fs_sb_info *sbi) @@ -1514,6 +2329,72 @@ static int init_percpu_info(struct f2fs_ GFP_KERNEL); } +#ifdef CONFIG_BLK_DEV_ZONED +static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) +{ + struct block_device *bdev = FDEV(devi).bdev; + sector_t nr_sectors = bdev->bd_part->nr_sects; + sector_t sector = 0; + struct blk_zone *zones; + unsigned int i, nr_zones; + unsigned int n = 0; + int err = -EIO; + + if (!f2fs_sb_has_blkzoned(sbi->sb)) + return 0; + + if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != + SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) + return -EINVAL; + sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); + if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != + __ilog2_u32(sbi->blocks_per_blkz)) + return -EINVAL; + sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); + FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> + sbi->log_blocks_per_blkz; + if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) + FDEV(devi).nr_blkz++; + + FDEV(devi).blkz_type = f2fs_kmalloc(sbi, FDEV(devi).nr_blkz, + GFP_KERNEL); + if (!FDEV(devi).blkz_type) + return -ENOMEM; + +#define F2FS_REPORT_NR_ZONES 4096 + + zones = f2fs_kzalloc(sbi, sizeof(struct blk_zone) * + F2FS_REPORT_NR_ZONES, GFP_KERNEL); + if (!zones) + return -ENOMEM; + + /* Get block zones type */ + while (zones && sector < nr_sectors) { + + nr_zones = F2FS_REPORT_NR_ZONES; + err = blkdev_report_zones(bdev, sector, + zones, &nr_zones, + GFP_KERNEL); + if (err) + break; + if (!nr_zones) { + err = -EIO; + break; + } + + for (i = 0; i < nr_zones; i++) { + FDEV(devi).blkz_type[n] = zones[i].type; + sector += zones[i].len; + n++; + } + } + + kfree(zones); + + return err; +} +#endif + /* * Read f2fs raw super block. * Because we have two copies of super block, so read both of them @@ -1587,7 +2468,7 @@ int f2fs_commit_super(struct f2fs_sb_inf } /* write back-up superblock first */ - bh = sb_getblk(sbi->sb, sbi->valid_super_block ? 0: 1); + bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1); if (!bh) return -EIO; err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); @@ -1598,7 +2479,7 @@ int f2fs_commit_super(struct f2fs_sb_inf return err; /* write current valid superblock */ - bh = sb_getblk(sbi->sb, sbi->valid_super_block); + bh = sb_bread(sbi->sb, sbi->valid_super_block); if (!bh) return -EIO; err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); @@ -1606,6 +2487,116 @@ int f2fs_commit_super(struct f2fs_sb_inf return err; } +static int f2fs_scan_devices(struct f2fs_sb_info *sbi) +{ + struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); + unsigned int max_devices = MAX_DEVICES; + int i; + + /* Initialize single device information */ + if (!RDEV(0).path[0]) { +#ifdef CONFIG_BLK_DEV_ZONED + if (!bdev_is_zoned(sbi->sb->s_bdev)) + return 0; + max_devices = 1; +#else + return 0; +#endif + } + + /* + * Initialize multiple devices information, or single + * zoned block device information. + */ + sbi->devs = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_info) * + max_devices, GFP_KERNEL); + if (!sbi->devs) + return -ENOMEM; + + for (i = 0; i < max_devices; i++) { + + if (i > 0 && !RDEV(i).path[0]) + break; + + if (max_devices == 1) { + /* Single zoned block device mount */ + FDEV(0).bdev = + blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, + sbi->sb->s_mode, sbi->sb->s_type); + } else { + /* Multi-device mount */ + memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); + FDEV(i).total_segments = + le32_to_cpu(RDEV(i).total_segments); + if (i == 0) { + FDEV(i).start_blk = 0; + FDEV(i).end_blk = FDEV(i).start_blk + + (FDEV(i).total_segments << + sbi->log_blocks_per_seg) - 1 + + le32_to_cpu(raw_super->segment0_blkaddr); + } else { + FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; + FDEV(i).end_blk = FDEV(i).start_blk + + (FDEV(i).total_segments << + sbi->log_blocks_per_seg) - 1; + } + FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, + sbi->sb->s_mode, sbi->sb->s_type); + } + if (IS_ERR(FDEV(i).bdev)) + return PTR_ERR(FDEV(i).bdev); + + /* to release errored devices */ + sbi->s_ndevs = i + 1; + +#ifdef CONFIG_BLK_DEV_ZONED + if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && + !f2fs_sb_has_blkzoned(sbi->sb)) { + f2fs_msg(sbi->sb, KERN_ERR, + "Zoned block device feature not enabled\n"); + return -EINVAL; + } + if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { + if (init_blkz_info(sbi, i)) { + f2fs_msg(sbi->sb, KERN_ERR, + "Failed to initialize F2FS blkzone information"); + return -EINVAL; + } + if (max_devices == 1) + break; + f2fs_msg(sbi->sb, KERN_INFO, + "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", + i, FDEV(i).path, + FDEV(i).total_segments, + FDEV(i).start_blk, FDEV(i).end_blk, + bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? + "Host-aware" : "Host-managed"); + continue; + } +#endif + f2fs_msg(sbi->sb, KERN_INFO, + "Mount Device [%2d]: %20s, %8u, %8x - %8x", + i, FDEV(i).path, + FDEV(i).total_segments, + FDEV(i).start_blk, FDEV(i).end_blk); + } + f2fs_msg(sbi->sb, KERN_INFO, + "IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); + return 0; +} + +static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi) +{ + struct f2fs_sm_info *sm_i = SM_I(sbi); + + /* adjust parameters according to the volume size */ + if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) { + F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE; + sm_i->dcc_info->discard_granularity = 1; + sm_i->ipu_policy = 1 << F2FS_IPU_FORCE; + } +} + static int f2fs_fill_super(struct super_block *sb, void *data, int silent) { struct f2fs_sb_info *sbi; @@ -1653,6 +2644,27 @@ try_onemore: sb->s_fs_info = sbi; sbi->raw_super = raw_super; + F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID); + F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID); + + /* precompute checksum seed for metadata */ + if (f2fs_sb_has_inode_chksum(sb)) + sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, + sizeof(raw_super->uuid)); + + /* + * The BLKZONED feature indicates that the drive was formatted with + * zone alignment optimization. This is optional for host-aware + * devices, but mandatory for host-managed zoned block devices. + */ +#ifndef CONFIG_BLK_DEV_ZONED + if (f2fs_sb_has_blkzoned(sb)) { + f2fs_msg(sb, KERN_ERR, + "Zoned block device support is not enabled\n"); + err = -EOPNOTSUPP; + goto free_sb_buf; + } +#endif default_options(sbi); /* parse mount options */ options = kstrdup((const char *)data, GFP_KERNEL); @@ -1671,33 +2683,69 @@ try_onemore: sb->s_max_links = F2FS_LINK_MAX; get_random_bytes(&sbi->s_next_generation, sizeof(u32)); +#ifdef CONFIG_QUOTA + sb->dq_op = &f2fs_quota_operations; + if (f2fs_sb_has_quota_ino(sb)) + sb->s_qcop = &dquot_quotactl_sysfile_ops; + else + sb->s_qcop = &f2fs_quotactl_ops; + sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; + + if (f2fs_sb_has_quota_ino(sbi->sb)) { + for (i = 0; i < MAXQUOTAS; i++) { + if (f2fs_qf_ino(sbi->sb, i)) + sbi->nquota_files++; + } + } +#endif + sb->s_op = &f2fs_sops; +#ifdef CONFIG_F2FS_FS_ENCRYPTION sb->s_cop = &f2fs_cryptops; +#endif sb->s_xattr = f2fs_xattr_handlers; sb->s_export_op = &f2fs_export_ops; sb->s_magic = F2FS_SUPER_MAGIC; sb->s_time_gran = 1; sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | (test_opt(sbi, POSIX_ACL) ? MS_POSIXACL : 0); - memcpy(sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); + memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); + sb->s_iflags |= SB_I_CGROUPWB; /* init f2fs-specific super block info */ sbi->valid_super_block = valid_super_block; mutex_init(&sbi->gc_mutex); mutex_init(&sbi->cp_mutex); init_rwsem(&sbi->node_write); + init_rwsem(&sbi->node_change); /* disallow all the data/node/meta page writes */ set_sbi_flag(sbi, SBI_POR_DOING); spin_lock_init(&sbi->stat_lock); - init_rwsem(&sbi->read_io.io_rwsem); - sbi->read_io.sbi = sbi; - sbi->read_io.bio = NULL; + /* init iostat info */ + spin_lock_init(&sbi->iostat_lock); + sbi->iostat_enable = false; + for (i = 0; i < NR_PAGE_TYPE; i++) { - init_rwsem(&sbi->write_io[i].io_rwsem); - sbi->write_io[i].sbi = sbi; - sbi->write_io[i].bio = NULL; + int n = (i == META) ? 1: NR_TEMP_TYPE; + int j; + + sbi->write_io[i] = f2fs_kmalloc(sbi, + n * sizeof(struct f2fs_bio_info), + GFP_KERNEL); + if (!sbi->write_io[i]) { + err = -ENOMEM; + goto free_options; + } + + for (j = HOT; j < n; j++) { + init_rwsem(&sbi->write_io[i][j].io_rwsem); + sbi->write_io[i][j].sbi = sbi; + sbi->write_io[i][j].bio = NULL; + spin_lock_init(&sbi->write_io[i][j].io_lock); + INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); + } } init_rwsem(&sbi->cp_rwsem); @@ -1706,14 +2754,23 @@ try_onemore: err = init_percpu_info(sbi); if (err) - goto free_options; + goto free_bio_info; + + if (F2FS_IO_SIZE(sbi) > 1) { + sbi->write_io_dummy = + mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); + if (!sbi->write_io_dummy) { + err = -ENOMEM; + goto free_percpu; + } + } /* get an inode for meta space */ sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); if (IS_ERR(sbi->meta_inode)) { f2fs_msg(sb, KERN_ERR, "Failed to read F2FS meta data inode"); err = PTR_ERR(sbi->meta_inode); - goto free_options; + goto free_io_dummy; } err = get_valid_checkpoint(sbi); @@ -1722,6 +2779,13 @@ try_onemore: goto free_meta_inode; } + /* Initialize device list */ + err = f2fs_scan_devices(sbi); + if (err) { + f2fs_msg(sb, KERN_ERR, "Failed to find devices"); + goto free_devices; + } + sbi->total_valid_node_count = le32_to_cpu(sbi->ckpt->valid_node_count); percpu_counter_set(&sbi->total_valid_inode_count, @@ -1730,6 +2794,9 @@ try_onemore: sbi->total_valid_block_count = le64_to_cpu(sbi->ckpt->valid_block_count); sbi->last_valid_block_count = sbi->total_valid_block_count; + sbi->reserved_blocks = 0; + sbi->current_reserved_blocks = 0; + limit_reserve_root(sbi); for (i = 0; i < NR_INODE_TYPE; i++) { INIT_LIST_HEAD(&sbi->inode_list[i]); @@ -1775,10 +2842,7 @@ try_onemore: goto free_nm; } - f2fs_join_shrinker(sbi); - - /* if there are nt orphan nodes free them */ - err = recover_orphan_inodes(sbi); + err = f2fs_build_stats(sbi); if (err) goto free_node_inode; @@ -1787,7 +2851,7 @@ try_onemore: if (IS_ERR(root)) { f2fs_msg(sb, KERN_ERR, "Failed to read root inode"); err = PTR_ERR(root); - goto free_node_inode; + goto free_stats; } if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) { iput(root); @@ -1801,26 +2865,28 @@ try_onemore: goto free_root_inode; } - err = f2fs_build_stats(sbi); + err = f2fs_register_sysfs(sbi); if (err) goto free_root_inode; - if (f2fs_proc_root) - sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root); - - if (sbi->s_proc) { - proc_create_data("segment_info", S_IRUGO, sbi->s_proc, - &f2fs_seq_segment_info_fops, sb); - proc_create_data("segment_bits", S_IRUGO, sbi->s_proc, - &f2fs_seq_segment_bits_fops, sb); +#ifdef CONFIG_QUOTA + /* + * Turn on quotas which were not enabled for read-only mounts if + * filesystem has quota feature, so that they are updated correctly. + */ + if (f2fs_sb_has_quota_ino(sb) && !f2fs_readonly(sb)) { + err = f2fs_enable_quotas(sb); + if (err) { + f2fs_msg(sb, KERN_ERR, + "Cannot turn on quotas: error %d", err); + goto free_sysfs; + } } - - sbi->s_kobj.kset = f2fs_kset; - init_completion(&sbi->s_kobj_unregister); - err = kobject_init_and_add(&sbi->s_kobj, &f2fs_ktype, NULL, - "%s", sb->s_id); +#endif + /* if there are nt orphan nodes free them */ + err = recover_orphan_inodes(sbi); if (err) - goto free_proc; + goto free_meta; /* recover fsynced data */ if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { @@ -1831,7 +2897,7 @@ try_onemore: if (bdev_read_only(sb->s_bdev) && !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { err = -EROFS; - goto free_kobj; + goto free_meta; } if (need_fsck) @@ -1845,7 +2911,7 @@ try_onemore: need_fsck = true; f2fs_msg(sb, KERN_ERR, "Cannot recover all fsync data errno=%d", err); - goto free_kobj; + goto free_meta; } } else { err = recover_fsync_data(sbi, true); @@ -1854,7 +2920,7 @@ try_onemore: err = -EINVAL; f2fs_msg(sb, KERN_ERR, "Need to recover fsync data"); - goto free_kobj; + goto free_meta; } } skip_recovery: @@ -1869,7 +2935,7 @@ skip_recovery: /* After POR, we can run background GC thread.*/ err = start_gc_thread(sbi); if (err) - goto free_kobj; + goto free_meta; } kfree(options); @@ -1881,42 +2947,64 @@ skip_recovery: sbi->valid_super_block ? 1 : 2, err); } + f2fs_join_shrinker(sbi); + + f2fs_tuning_parameters(sbi); + + f2fs_msg(sbi->sb, KERN_NOTICE, "Mounted with checkpoint version = %llx", + cur_cp_version(F2FS_CKPT(sbi))); f2fs_update_time(sbi, CP_TIME); f2fs_update_time(sbi, REQ_TIME); return 0; -free_kobj: +free_meta: +#ifdef CONFIG_QUOTA + if (f2fs_sb_has_quota_ino(sb) && !f2fs_readonly(sb)) + f2fs_quota_off_umount(sbi->sb); +#endif f2fs_sync_inode_meta(sbi); - kobject_del(&sbi->s_kobj); - kobject_put(&sbi->s_kobj); - wait_for_completion(&sbi->s_kobj_unregister); -free_proc: - if (sbi->s_proc) { - remove_proc_entry("segment_info", sbi->s_proc); - remove_proc_entry("segment_bits", sbi->s_proc); - remove_proc_entry(sb->s_id, f2fs_proc_root); - } - f2fs_destroy_stats(sbi); + /* + * Some dirty meta pages can be produced by recover_orphan_inodes() + * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() + * followed by write_checkpoint() through f2fs_write_node_pages(), which + * falls into an infinite loop in sync_meta_pages(). + */ + truncate_inode_pages_final(META_MAPPING(sbi)); +#ifdef CONFIG_QUOTA +free_sysfs: +#endif + f2fs_unregister_sysfs(sbi); free_root_inode: dput(sb->s_root); sb->s_root = NULL; +free_stats: + f2fs_destroy_stats(sbi); free_node_inode: - truncate_inode_pages_final(NODE_MAPPING(sbi)); - mutex_lock(&sbi->umount_mutex); release_ino_entry(sbi, true); - f2fs_leave_shrinker(sbi); + truncate_inode_pages_final(NODE_MAPPING(sbi)); iput(sbi->node_inode); - mutex_unlock(&sbi->umount_mutex); free_nm: destroy_node_manager(sbi); free_sm: destroy_segment_manager(sbi); +free_devices: + destroy_device_list(sbi); kfree(sbi->ckpt); free_meta_inode: make_bad_inode(sbi->meta_inode); iput(sbi->meta_inode); -free_options: +free_io_dummy: + mempool_destroy(sbi->write_io_dummy); +free_percpu: destroy_percpu_info(sbi); +free_bio_info: + for (i = 0; i < NR_PAGE_TYPE; i++) + kfree(sbi->write_io[i]); +free_options: +#ifdef CONFIG_QUOTA + for (i = 0; i < MAXQUOTAS; i++) + kfree(F2FS_OPTION(sbi).s_qf_names[i]); +#endif kfree(options); free_sb_buf: kfree(raw_super); @@ -1942,8 +3030,11 @@ static struct dentry *f2fs_mount(struct static void kill_f2fs_super(struct super_block *sb) { - if (sb->s_root) + if (sb->s_root) { set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); + stop_gc_thread(F2FS_SB(sb)); + stop_discard_thread(F2FS_SB(sb)); + } kill_block_super(sb); } @@ -2003,30 +3094,31 @@ static int __init init_f2fs_fs(void) err = create_extent_cache(); if (err) goto free_checkpoint_caches; - f2fs_kset = kset_create_and_add("f2fs", NULL, fs_kobj); - if (!f2fs_kset) { - err = -ENOMEM; + err = f2fs_init_sysfs(); + if (err) goto free_extent_cache; - } err = register_shrinker(&f2fs_shrinker_info); if (err) - goto free_kset; - + goto free_sysfs; err = register_filesystem(&f2fs_fs_type); if (err) goto free_shrinker; err = f2fs_create_root_stats(); if (err) goto free_filesystem; - f2fs_proc_root = proc_mkdir("fs/f2fs", NULL); + err = f2fs_init_post_read_processing(); + if (err) + goto free_root_stats; return 0; +free_root_stats: + f2fs_destroy_root_stats(); free_filesystem: unregister_filesystem(&f2fs_fs_type); free_shrinker: unregister_shrinker(&f2fs_shrinker_info); -free_kset: - kset_unregister(f2fs_kset); +free_sysfs: + f2fs_exit_sysfs(); free_extent_cache: destroy_extent_cache(); free_checkpoint_caches: @@ -2043,11 +3135,11 @@ fail: static void __exit exit_f2fs_fs(void) { - remove_proc_entry("fs/f2fs", NULL); + f2fs_destroy_post_read_processing(); f2fs_destroy_root_stats(); unregister_filesystem(&f2fs_fs_type); unregister_shrinker(&f2fs_shrinker_info); - kset_unregister(f2fs_kset); + f2fs_exit_sysfs(); destroy_extent_cache(); destroy_checkpoint_caches(); destroy_segment_manager_caches(); @@ -2062,3 +3154,4 @@ module_exit(exit_f2fs_fs) MODULE_AUTHOR("Samsung Electronics's Praesto Team"); MODULE_DESCRIPTION("Flash Friendly File System"); MODULE_LICENSE("GPL"); +