6.6-stable review patch. If anyone has any objections, please let me know.
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From: Zizhi Wo wozizhi@huawei.com
[ Upstream commit 01fe654f78fd1ea4df046ef76b07ba92a35f8dbe ]
Commit 9b9c5bea0b96 ("cifs: do not return atime less than mtime") indicates that in cifs, if atime is less than mtime, some apps will break. Therefore, it introduce a function to compare this two variables in two places where atime is updated. If atime is less than mtime, update it to mtime.
However, the patch was handled incorrectly, resulting in atime and mtime being exactly equal. A previous commit 69738cfdfa70 ("fs: cifs: Fix atime update check vs mtime") fixed one place and forgot to fix another. Fix it.
Fixes: 9b9c5bea0b96 ("cifs: do not return atime less than mtime") Cc: stable@vger.kernel.org Signed-off-by: Zizhi Wo wozizhi@huawei.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/smb/client/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c index cf17e3dd703e6..32a8525415d96 100644 --- a/fs/smb/client/file.c +++ b/fs/smb/client/file.c @@ -4671,7 +4671,7 @@ static int cifs_readpage_worker(struct file *file, struct page *page, /* we do not want atime to be less than mtime, it broke some apps */ atime = inode_set_atime_to_ts(inode, current_time(inode)); mtime = inode_get_mtime(inode); - if (timespec64_compare(&atime, &mtime)) + if (timespec64_compare(&atime, &mtime) < 0) inode_set_atime_to_ts(inode, inode_get_mtime(inode));
if (PAGE_SIZE > rc)