[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/locking/dlm/lock.c b/fs/gfs2/locking/dlm/lock.c
index 53a6ab3..cf7ea8a 100644
--- a/fs/gfs2/locking/dlm/lock.c
+++ b/fs/gfs2/locking/dlm/lock.c
@@ -165,7 +165,7 @@
{
struct gdlm_lock *lp;
- lp = kzalloc(sizeof(struct gdlm_lock), GFP_KERNEL);
+ lp = kzalloc(sizeof(struct gdlm_lock), GFP_NOFS);
if (!lp)
return -ENOMEM;
@@ -383,7 +383,7 @@
{
char *lvb;
- lvb = kzalloc(GDLM_LVB_SIZE, GFP_KERNEL);
+ lvb = kzalloc(GDLM_LVB_SIZE, GFP_NOFS);
if (!lvb)
return -ENOMEM;
diff --git a/fs/gfs2/locking/nolock/main.c b/fs/gfs2/locking/nolock/main.c
index d3b8ce6..284a5ec 100644
--- a/fs/gfs2/locking/nolock/main.c
+++ b/fs/gfs2/locking/nolock/main.c
@@ -140,7 +140,7 @@
struct nolock_lockspace *nl = lock;
int error = 0;
- *lvbp = kzalloc(nl->nl_lvb_size, GFP_KERNEL);
+ *lvbp = kzalloc(nl->nl_lvb_size, GFP_NOFS);
if (!*lvbp)
error = -ENOMEM;