diff options
| -rw-r--r-- | fs/ext4/ext4.h | 4 | ||||
| -rw-r--r-- | fs/ext4/super.c | 27 | ||||
| -rw-r--r-- | include/linux/jbd2.h | 5 |
3 files changed, 30 insertions, 6 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 1879531a119f..02d7dc378505 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1213,6 +1213,8 @@ struct ext4_inode_info { #define EXT4_MOUNT2_EXPLICIT_JOURNAL_CHECKSUM 0x00000008 /* User explicitly specified journal checksum */ +#define EXT4_MOUNT2_JOURNAL_FAST_COMMIT 0x00000010 /* Journal fast commit */ + #define clear_opt(sb, opt) EXT4_SB(sb)->s_mount_opt &= \ ~EXT4_MOUNT_##opt #define set_opt(sb, opt) EXT4_SB(sb)->s_mount_opt |= \ @@ -1813,6 +1815,7 @@ static inline bool ext4_verity_in_progress(struct inode *inode) #define EXT4_FEATURE_COMPAT_RESIZE_INODE 0x0010 #define EXT4_FEATURE_COMPAT_DIR_INDEX 0x0020 #define EXT4_FEATURE_COMPAT_SPARSE_SUPER2 0x0200 +#define EXT4_FEATURE_COMPAT_FAST_COMMIT 0x0400 #define EXT4_FEATURE_COMPAT_STABLE_INODES 0x0800 #define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001 @@ -1915,6 +1918,7 @@ EXT4_FEATURE_COMPAT_FUNCS(xattr, EXT_ATTR) EXT4_FEATURE_COMPAT_FUNCS(resize_inode, RESIZE_INODE) EXT4_FEATURE_COMPAT_FUNCS(dir_index, DIR_INDEX) EXT4_FEATURE_COMPAT_FUNCS(sparse_super2, SPARSE_SUPER2) +EXT4_FEATURE_COMPAT_FUNCS(fast_commit, FAST_COMMIT) EXT4_FEATURE_COMPAT_FUNCS(stable_inodes, STABLE_INODES) EXT4_FEATURE_RO_COMPAT_FUNCS(sparse_super, SPARSE_SUPER) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index f997fc95cc31..66423c598b70 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1709,7 +1709,7 @@ enum { Opt_dioread_nolock, Opt_dioread_lock, Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable, Opt_max_dir_size_kb, Opt_nojournal_checksum, Opt_nombcache, - Opt_prefetch_block_bitmaps, + Opt_prefetch_block_bitmaps, Opt_no_fc, }; static const match_table_t tokens = { @@ -1796,6 +1796,7 @@ static const match_table_t tokens = { {Opt_init_itable, "init_itable=%u"}, {Opt_init_itable, "init_itable"}, {Opt_noinit_itable, "noinit_itable"}, + {Opt_no_fc, "no_fc"}, {Opt_max_dir_size_kb, "max_dir_size_kb=%u"}, {Opt_test_dummy_encryption, "test_dummy_encryption=%s"}, {Opt_test_dummy_encryption, "test_dummy_encryption"}, @@ -1922,6 +1923,7 @@ static int clear_qf_name(struct super_block *sb, int qtype) #define MOPT_EXT4_ONLY (MOPT_NO_EXT2 | MOPT_NO_EXT3) #define MOPT_STRING 0x0400 #define MOPT_SKIP 0x0800 +#define MOPT_2 0x1000 static const struct mount_opts { int token; @@ -2022,6 +2024,8 @@ static const struct mount_opts { {Opt_nombcache, EXT4_MOUNT_NO_MBCACHE, MOPT_SET}, {Opt_prefetch_block_bitmaps, EXT4_MOUNT_PREFETCH_BLOCK_BITMAPS, MOPT_SET}, + {Opt_no_fc, EXT4_MOUNT2_JOURNAL_FAST_COMMIT, + MOPT_CLEAR | MOPT_2 | MOPT_EXT4_ONLY}, {Opt_err, 0, 0} }; @@ -2398,10 +2402,17 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, WARN_ON(1); return -1; } - if (arg != 0) - sbi->s_mount_opt |= m->mount_opt; - else - sbi->s_mount_opt &= ~m->mount_opt; + if (m->flags & MOPT_2) { + if (arg != 0) + sbi->s_mount_opt2 |= m->mount_opt; + else + sbi->s_mount_opt2 &= ~m->mount_opt; + } else { + if (arg != 0) + sbi->s_mount_opt |= m->mount_opt; + else + sbi->s_mount_opt &= ~m->mount_opt; + } } return 1; } @@ -2618,6 +2629,9 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb, SEQ_OPTS_PUTS("dax=inode"); } + if (test_opt2(sb, JOURNAL_FAST_COMMIT)) + SEQ_OPTS_PUTS("fast_commit"); + ext4_show_quota_options(seq, sb); return 0; } @@ -4121,6 +4135,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) #ifdef CONFIG_EXT4_FS_POSIX_ACL set_opt(sb, POSIX_ACL); #endif + if (ext4_has_feature_fast_commit(sb)) + set_opt2(sb, JOURNAL_FAST_COMMIT); /* don't forget to enable journal_csum when metadata_csum is enabled. */ if (ext4_has_metadata_csum(sb)) set_opt(sb, JOURNAL_CHECKSUM); @@ -4777,6 +4793,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) sbi->s_def_mount_opt &= ~EXT4_MOUNT_JOURNAL_CHECKSUM; clear_opt(sb, JOURNAL_CHECKSUM); clear_opt(sb, DATA_FLAGS); + clear_opt2(sb, JOURNAL_FAST_COMMIT); sbi->s_journal = NULL; needs_recovery = 0; goto no_journal; diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 04afa6dcd60d..0685cc95e501 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -289,6 +289,7 @@ typedef struct journal_superblock_s #define JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT 0x00000004 #define JBD2_FEATURE_INCOMPAT_CSUM_V2 0x00000008 #define JBD2_FEATURE_INCOMPAT_CSUM_V3 0x00000010 +#define JBD2_FEATURE_INCOMPAT_FAST_COMMIT 0x00000020 /* See "journal feature predicate functions" below */ @@ -299,7 +300,8 @@ typedef struct journal_superblock_s JBD2_FEATURE_INCOMPAT_64BIT | \ JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT | \ JBD2_FEATURE_INCOMPAT_CSUM_V2 | \ - JBD2_FEATURE_INCOMPAT_CSUM_V3) + JBD2_FEATURE_INCOMPAT_CSUM_V3 | \ + JBD2_FEATURE_INCOMPAT_FAST_COMMIT) #ifdef __KERNEL__ @@ -1263,6 +1265,7 @@ JBD2_FEATURE_INCOMPAT_FUNCS(64bit, 64BIT) JBD2_FEATURE_INCOMPAT_FUNCS(async_commit, ASYNC_COMMIT) JBD2_FEATURE_INCOMPAT_FUNCS(csum2, CSUM_V2) JBD2_FEATURE_INCOMPAT_FUNCS(csum3, CSUM_V3) +JBD2_FEATURE_INCOMPAT_FUNCS(fast_commit, FAST_COMMIT) /* * Journal flag definitions |