[PATCH] VFS: Unlink should revoke all outstanding leases on file

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After client get one file's READ delegation through NFSv4,
server delete this file but don't reclaim the delegation.

This patch add break_lease at may_delete, which can reclaim delegations.

---
 fs/namei.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 16df727..17bafc1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1338,7 +1338,7 @@ static int may_delete(struct inode *dir,struct dentry *victim,int isdir)
 		return -ENOENT;
 	if (victim->d_flags & DCACHE_NFSFS_RENAMED)
 		return -EBUSY;
-	return 0;
+	return break_lease(victim->d_inode, FMODE_WRITE);
 }
 
 /*	Check whether we can create an object with dentry child in directory
-- 
1.7.0



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