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authorJ. Bruce Fields <bfields@redhat.com>2022-01-19 01:00:51 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-02-05 14:38:57 +0300
commit6dfc954efb98438b46e1906bddc5d4f7dc950f4c (patch)
tree6ec5d555ddf950302018f5b3c6a629fa56e97bef /fs/lockd
parentcb5864bf93b26c867e53c4f1cdace12e9805ec6d (diff)
downloadlinux-6dfc954efb98438b46e1906bddc5d4f7dc950f4c.tar.xz
lockd: fix failure to cleanup client locks
commit d19a7af73b5ecaac8168712d18be72b9db166768 upstream. In my testing, we're sometimes hitting the request->fl_flags & FL_EXISTS case in posix_lock_inode, presumably just by random luck since we're not actually initializing fl_flags here. This probably didn't matter before commit 7f024fcd5c97 ("Keep read and write fds with each nlm_file") since we wouldn't previously unlock unless we knew there were locks. But now it causes lockd to give up on removing more locks. We could just initialize fl_flags, but really it seems dubious to be calling vfs_lock_file with random values in some of the fields. Fixes: 7f024fcd5c97 ("Keep read and write fds with each nlm_file") Signed-off-by: J. Bruce Fields <bfields@redhat.com> [ cel: fixed checkpatch.pl nit ] Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/lockd')
-rw-r--r--fs/lockd/svcsubs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index 54c2e42130ca..0a22a2faf552 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -180,6 +180,7 @@ static int nlm_unlock_files(struct nlm_file *file)
{
struct file_lock lock;
+ locks_init_lock(&lock);
lock.fl_type = F_UNLCK;
lock.fl_start = 0;
lock.fl_end = OFFSET_MAX;