FAILED: patch "[PATCH] cifs: if deferred close is disabled then close files" failed to apply to 5.4-stable tree

gregkh
2023-07-21T14:25:23Z

The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x df9d70c18616760c6504b97fec66b6379c172dbb
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023072107-facsimile-recolor-8439@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:

df9d70c18616 ("cifs: if deferred close is disabled then close files immediately")
38c8a9a52082 ("smb: move client and server files to common directory fs/smb")
abdb1742a312 ("cifs: get rid of mount options string parsing")
9fd29a5bae6e ("cifs: use fs_context for automounts")
5dd8ce24667a ("cifs: missing directory in MAINTAINERS file")
332019e23a51 ("Merge tag '5.20-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From df9d70c18616760c6504b97fec66b6379c172dbb Mon Sep 17 00:00:00 2001
From: Bharath SM <bharathsm@microsoft.com>
Date: Fri, 7 Jul 2023 15:29:01 +0000
Subject: [PATCH] cifs: if deferred close is disabled then close files
immediately

If defer close timeout value is set to 0, then there is no
need to include files in the deferred close list and utilize
the delayed worker for closing. Instead, we can close them
immediately.

Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>

diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 879bc8e6555c..fc5acc95cd13 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -1080,8 +1080,8 @@ int cifs_close(struct inode *inode, struct file *file)
cfile = file->private_data;
file->private_data = NULL;
dclose = kmalloc(sizeof(struct cifs_deferred_close), GFP_KERNEL);
- if ((cinode->oplock == CIFS_CACHE_RHW_FLG) &&
- cinode->lease_granted &&
+ if ((cifs_sb->ctx->closetimeo && cinode->oplock == CIFS_CACHE_RHW_FLG)
+ && cinode->lease_granted &&
!test_bit(CIFS_INO_CLOSE_ON_LOCK, &cinode->flags) &&
dclose) {
if (test_and_clear_bit(CIFS_INO_MODIFIED_ATTR, &cinode->flags)) {