This is a note to let you know that I've just added the patch titled
afs: Fix the dynamic root's d_delete to always delete unused dentries
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
afs-fix-the-dynamic-root-s-d_delete-to-always-delete.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 5af91831385fa66738cd4dd403b92254242b0f90
Author: David Howells <dhowells@xxxxxxxxxx>
Date: Mon Dec 11 15:08:57 2023 +0000
afs: Fix the dynamic root's d_delete to always delete unused dentries
[ Upstream commit 71f8b55bc30e82d6355e07811213d847981a32e2 ]
Fix the afs dynamic root's d_delete function to always delete unused
dentries rather than only deleting them if they're positive. With things
as they stand upstream, negative dentries stemming from failed DNS lookups
stick around preventing retries.
Fixes: 66c7e1d319a5 ("afs: Split the dynroot stuff out and give it its own ops tables")
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Tested-by: Markus Suvanto <markus.suvanto@xxxxxxxxx>
cc: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/afs/dynroot.c b/fs/afs/dynroot.c
index fc6c42eeb659c..ff21ce511f47c 100644
--- a/fs/afs/dynroot.c
+++ b/fs/afs/dynroot.c
@@ -172,20 +172,9 @@ static int afs_dynroot_d_revalidate(struct dentry *dentry, unsigned int flags)
return 1;
}
-/*
- * Allow the VFS to enquire as to whether a dentry should be unhashed (mustn't
- * sleep)
- * - called from dput() when d_count is going to 0.
- * - return 1 to request dentry be unhashed, 0 otherwise
- */
-static int afs_dynroot_d_delete(const struct dentry *dentry)
-{
- return d_really_is_positive(dentry);
-}
-
const struct dentry_operations afs_dynroot_dentry_operations = {
.d_revalidate = afs_dynroot_d_revalidate,
- .d_delete = afs_dynroot_d_delete,
+ .d_delete = always_delete_dentry,
.d_release = afs_d_release,
.d_automount = afs_d_automount,
};
