xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

vfs: make sync_filesystem return errors from ->sync_fs

Browse Source 
commit 5679897eb104cec9e99609c3f045a0c20603da4c upstream.

[backport to 5.10 only differs in __sync_blockdev helper]

Strangely, sync_filesystem ignores the return code from the ->sync_fs
call, which means that syscalls like syncfs(2) never see the error.
This doesn't seem right, so fix that.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Darrick J. Wong
2022-08-23 15:11:34 +03:00
committed by Greg Kroah-Hartman
parent 9255a42fe7
commit 76a51e49da
1 changed files with 12 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
fs/sync.c
View File

@@ -28,7 +28,7 @@
*/ */
int sync_filesystem(struct super_block *sb) int sync_filesystem(struct super_block *sb)
{ {
int ret; int ret = 0;
/* /*
* We need to be protected against the filesystem going from * We need to be protected against the filesystem going from
@@ -51,15 +51,21 @@ int sync_filesystem(struct super_block *sb)
* at a time. * at a time.
*/ */
writeback_inodes_sb(sb, WB_REASON_SYNC); writeback_inodes_sb(sb, WB_REASON_SYNC);
if (sb->s_op->sync_fs) if (sb->s_op->sync_fs) {
sb->s_op->sync_fs(sb, 0); ret = sb->s_op->sync_fs(sb, 0);
if (ret)
return ret;
}
ret = __sync_blockdev(sb->s_bdev, 0); ret = __sync_blockdev(sb->s_bdev, 0);
if (ret < 0) if (ret)
return ret; return ret;
sync_inodes_sb(sb); sync_inodes_sb(sb);
if (sb->s_op->sync_fs) if (sb->s_op->sync_fs) {
sb->s_op->sync_fs(sb, 1); ret = sb->s_op->sync_fs(sb, 1);
if (ret)
return ret;
}
return __sync_blockdev(sb->s_bdev, 1); return __sync_blockdev(sb->s_bdev, 1);
} }
EXPORT_SYMBOL(sync_filesystem); EXPORT_SYMBOL(sync_filesystem);