[GFS2] fix GFP_KERNEL misuses
There are several places where GFP_KERNEL allocations happen under a glock,
which will result in hangs if we're under memory pressure and go to re-enter the
fs in order to flush stuff out. This patch changes the culprits to GFS_NOFS to
keep this problem from happening. Thank you,
Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index dcae2aa..3a9ef52 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1231,7 +1231,7 @@
x = ip->i_di.di_size + 1;
if (x > *len) {
- *buf = kmalloc(x, GFP_KERNEL);
+ *buf = kmalloc(x, GFP_NOFS);
if (!*buf) {
error = -ENOMEM;
goto out_brelse;