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afs: Fix the dynamic root's d_delete to always delete unused dentries

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[ 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: 66c7e1d319 ("afs: Split the dynroot stuff out and give it its own ops tables")
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
David Howells 2023-12-11 15:08:57 +00:00 committed by Greg Kroah-Hartman
parent e1e51040ce
commit ecc8805aad
1 changed files with 1 additions and 12 deletions
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13
fs/afs/dynroot.c
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@ -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,
};