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authorJ. Bruce Fields <bfields@fieldses.org>2005-11-10 19:08:00 -0500
committerChris Wright <chrisw@osdl.org>2005-11-24 14:10:08 -0800
commitb3834f71cb794d4dba1f9ed2fec8bc7ee2f40b7e (patch)
treeb774d90d979af24def0d24eeed20cb807b5a9d3c
parent9761be89f5a057bf2bae57ca98990f89ad5edbe2 (diff)
[PATCH] VFS: Fix memory leak with file leases
The patch http://linux.bkbits.net:8080/linux-2.6/diffs/fs/locks.c@1.70??nav=index.html introduced a pretty nasty memory leak in the lease code. When freeing the lease, the code in locks_delete_lock() will correctly clean up the fasync queue, but when we return to fcntl_setlease(), the freed fasync entry will be reinstated. This patch ensures that we skip the call to fasync_helper() when we're freeing up the lease. Signed-off-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--fs/locks.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/locks.c b/fs/locks.c
index f7daa5f48949..accbc3c0506f 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1418,7 +1418,7 @@ int fcntl_setlease(unsigned int fd, struct file *filp, long arg)
lock_kernel();
error = __setlease(filp, arg, &flp);
- if (error)
+ if (error || arg == F_UNLCK)
goto out_unlock;
error = fasync_helper(fd, filp, 1, &flp->fl_fasync);