This patch enhances the xattr consistency of dirs from suddern power-cuts.
Possible scenario would be:
1. dir->setxattr used by per-file encryption
2. file->setxattr goes into inline_xattr
3. file->fsync
In that case, we should do checkpoint for #1.
Otherwise we'd lose dir's key information for the file given #2.
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
fs/f2fs/checkpoint.c | 1 +
fs/f2fs/f2fs.h | 1 +
fs/f2fs/file.c | 2 ++
fs/f2fs/xattr.c | 2 ++
4 files changed, 6 insertions(+)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 64a685d..727e97e 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1152,6 +1152,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct
cp_control *cpc)
clear_prefree_segments(sbi, cpc);
clear_sbi_flag(sbi, SBI_IS_DIRTY);
+ clear_sbi_flag(sbi, SBI_NEED_CP);
return 0;
}
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index c2478a1..b9611d4 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -756,6 +756,7 @@ enum {
SBI_NEED_FSCK, /* need fsck.f2fs to fix */
SBI_POR_DOING, /* recovery is doing or not */
SBI_NEED_SB_WRITE, /* need to recover superblock */
+ SBI_NEED_CP, /* need to checkpoint */
};
enum {
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 7c6ee7e..21aa99b 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -135,6 +135,8 @@ static inline bool need_do_checkpoint(struct inode *inode)
if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
need_cp = true;
+ else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
+ need_cp = true;
else if (file_enc_name(inode) && need_dentry_mark(sbi, inode->i_ino))
need_cp = true;
else if (file_wrong_pino(inode))
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index c8898b5..d39a792 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -548,6 +548,8 @@ static int __f2fs_setxattr(struct inode *inode, int index,
!strcmp(name, F2FS_XATTR_NAME_ENCRYPTION_CONTEXT))
f2fs_set_encrypted_inode(inode);
f2fs_mark_inode_dirty_sync(inode);
+ if (!error && S_ISDIR(inode->i_mode))
+ set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_CP);
exit:
kzfree(base_addr);
return error;
--
2.8.3
