diff options
| author | Chao Yu <chao@kernel.org> | 2022-09-28 18:38:54 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2022-10-04 23:31:45 +0300 |
| commit | 95fa90c9e5a7f14c2497d5b032544478c9377c3a (patch) | |
| tree | c5a868cfae65b1d969a30a1cdb750a4813f5cad1 /fs/f2fs/super.c | |
| parent | a9cfee0ef98e99c8b1951dfd1d57a88580354d0d (diff) | |
| download | linux-95fa90c9e5a7f14c2497d5b032544478c9377c3a.tar.xz | |
f2fs: support recording errors into superblock
This patch supports to record detail reason of FSCORRUPTED error into
f2fs_super_block.s_errors[].
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 2533d309a924..6cf72fbf2054 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -3851,8 +3851,6 @@ void f2fs_handle_stop(struct f2fs_sb_info *sbi, unsigned char reason) struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); int err; - f2fs_bug_on(sbi, reason >= MAX_STOP_REASON); - f2fs_down_write(&sbi->sb_lock); if (raw_super->s_stop_reason[reason] < ((1 << BITS_PER_BYTE) - 1)) @@ -3862,7 +3860,51 @@ void f2fs_handle_stop(struct f2fs_sb_info *sbi, unsigned char reason) if (err) f2fs_err(sbi, "f2fs_commit_super fails to record reason:%u err:%d", reason, err); + f2fs_up_write(&sbi->sb_lock); +} + +static void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag) +{ + spin_lock(&sbi->error_lock); + if (!test_bit(flag, (unsigned long *)sbi->errors)) { + set_bit(flag, (unsigned long *)sbi->errors); + sbi->error_dirty = true; + } + spin_unlock(&sbi->error_lock); +} + +static bool f2fs_update_errors(struct f2fs_sb_info *sbi) +{ + bool need_update = false; + + spin_lock(&sbi->error_lock); + if (sbi->error_dirty) { + memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors, + MAX_F2FS_ERRORS); + sbi->error_dirty = false; + need_update = true; + } + spin_unlock(&sbi->error_lock); + + return need_update; +} +void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error) +{ + int err; + + f2fs_save_errors(sbi, error); + + f2fs_down_write(&sbi->sb_lock); + + if (!f2fs_update_errors(sbi)) + goto out_unlock; + + err = f2fs_commit_super(sbi, false); + if (err) + f2fs_err(sbi, "f2fs_commit_super fails to record errors:%u, err:%d", + error, err); +out_unlock: f2fs_up_write(&sbi->sb_lock); } @@ -4213,6 +4255,9 @@ try_onemore: goto free_devices; } + spin_lock_init(&sbi->error_lock); + memcpy(sbi->errors, raw_super->s_errors, MAX_F2FS_ERRORS); + sbi->total_valid_node_count = le32_to_cpu(sbi->ckpt->valid_node_count); percpu_counter_set(&sbi->total_valid_inode_count, |