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| author | Chao Yu <yuchao0@huawei.com> | 2017-09-29 08:59:39 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-10-10 22:49:53 +0300 |
| commit | 1228b482c4ee26f3334dd83eb13bcf7e462f9c93 (patch) | |
| tree | d455026d467bb992187396da2ba104c80dd19694 /fs/f2fs/f2fs.h | |
| parent | 39d787bec4f792e69e24b11aa3d61ae1c0e4830b (diff) | |
| download | linux-1228b482c4ee26f3334dd83eb13bcf7e462f9c93.tar.xz | |
f2fs: fix to flush multiple device in checkpoint
If f2fs manages multiple devices, in checkpoint, we need to issue flush
in those devices which contain dirty data/node in their cache before
we write checkpoint region, otherwise, filesystem metadata could be
corrupted if hitting SPO after checkpoint.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index b65208854a4c..4a42ab61fc93 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1122,6 +1122,8 @@ struct f2fs_sb_info { struct list_head s_list; int s_ndevs; /* number of devices */ struct f2fs_dev_info *devs; /* for device list */ + unsigned int dirty_device; /* for checkpoint data flush */ + spinlock_t dev_lock; /* protect dirty_device */ struct mutex umount_mutex; unsigned int shrinker_run_no; @@ -2527,6 +2529,7 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi, bool need); void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi); int f2fs_issue_flush(struct f2fs_sb_info *sbi, nid_t ino); int create_flush_cmd_control(struct f2fs_sb_info *sbi); +int f2fs_flush_device_cache(struct f2fs_sb_info *sbi); void destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free); void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr); bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr); |