[GFS2] gfs2_set_flags double locking patch

traced the "umount hang due to spurious glock" issue that I was having
with gfs2meta. It's in the do_gfs2_set_flags function, which does a
gfs2_holder_init as well as a gfs2_glock_nq_init (increases ref count by
2 instead of 1).

Signed-off-by: Abhijith Das <adas@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index 26f1d3249b0f..6764ca69bc52 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -608,12 +608,9 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
         int error;
         u32 new_flags, flags;
 
-        gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
         error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
-        if (error) {
-                gfs2_holder_uninit(&gh);
+        if (error)
                 return error;
-        }
 
         flags = ip->i_di.di_flags;
         new_flags = (flags & ~mask) | (reqflags & mask);