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authorJeff Layton <jeff.layton@primarydata.com>2015-02-17 17:08:23 -0500
committerJeff Layton <jeff.layton@primarydata.com>2015-02-17 17:08:23 -0500
commit2e2f756f81edd7c3ba6ed384385ae1d6491652eb (patch)
treee68195e69bebc73b002f3354dc388c83d703a8f5
parent267f1128583074b575b90a58de4dcb12dd25af96 (diff)
locks: fix list insertion when lock is split in two
In the case where we're splitting a lock in two, the current code the new "left" lock in the incorrect spot. It's inserted just before "right" when it should instead be inserted just before the new lock. When we add a new lock, set "fl" to that value so that we can add "left" before it. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
-rw-r--r--fs/locks.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/locks.c b/fs/locks.c
index 90b652ad306f..365c82e1b3a9 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1107,6 +1107,7 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request, str
}
locks_copy_lock(new_fl, request);
locks_insert_lock_ctx(new_fl, &fl->fl_list);
+ fl = new_fl;
new_fl = NULL;
}
if (right) {