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NFS: Don't immediately return directory delegations when disabled

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The function nfs_inode_evict_delegation() immediately and synchronously
returns a delegation when called. This means we can't call it from
nfs4_have_delegation(), since that function could be called under a
lock. Instead we should mark the delegation for return and let the state
manager handle it for us.

Fixes: b6d2a520f4 ("NFS: Add a module option to disable directory delegations")
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Anna Schumaker 2026-01-09 15:41:14 -05:00 committed by Trond Myklebust
parent 60699ab7cb
commit 803e18641f
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/delegation.c
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@ -149,7 +149,7 @@ static int nfs4_do_check_delegation(struct inode *inode, fmode_t type,
int nfs4_have_delegation(struct inode *inode, fmode_t type, int flags)
{
if (S_ISDIR(inode->i_mode) && !directory_delegations)
nfs_inode_evict_delegation(inode);
nfs4_inode_set_return_delegation_on_close(inode);
return nfs4_do_check_delegation(inode, type, flags, true);
}