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authorDarrick J. Wong <djwong@kernel.org>2022-08-23 15:11:34 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-08-31 17:15:14 +0200
commit76a51e49da9c9919b97225982d720da5315ebaa7 (patch)
tree42c90527bc9417c1de351db3ce71abba4be665f0
parent9255a42fe7ab65bc1972ed7452966199d47b7009 (diff)
vfs: make sync_filesystem return errors from ->sync_fs
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>
-rw-r--r--fs/sync.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/fs/sync.c b/fs/sync.c
index 0d6cdc507cb9..79180e58d862 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -28,7 +28,7 @@
*/
int sync_filesystem(struct super_block *sb)
{
- int ret;
+ int ret = 0;
/*
* We need to be protected against the filesystem going from
@@ -51,15 +51,21 @@ int sync_filesystem(struct super_block *sb)
* at a time.
*/
writeback_inodes_sb(sb, WB_REASON_SYNC);
- if (sb->s_op->sync_fs)
- sb->s_op->sync_fs(sb, 0);
+ if (sb->s_op->sync_fs) {
+ ret = sb->s_op->sync_fs(sb, 0);
+ if (ret)
+ return ret;
+ }
ret = __sync_blockdev(sb->s_bdev, 0);
- if (ret < 0)
+ if (ret)
return ret;
sync_inodes_sb(sb);
- if (sb->s_op->sync_fs)
- sb->s_op->sync_fs(sb, 1);
+ if (sb->s_op->sync_fs) {
+ ret = sb->s_op->sync_fs(sb, 1);
+ if (ret)
+ return ret;
+ }
return __sync_blockdev(sb->s_bdev, 1);
}
EXPORT_SYMBOL(sync_filesystem);