[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>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 1047a8c7226a..3e9bd46f27e3 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -116,7 +116,7 @@ static int acl_get(struct gfs2_inode *ip, int access, struct posix_acl **acl,
                 goto out;
 
         er.er_data_len = GFS2_EA_DATA_LEN(el->el_ea);
-        er.er_data = kmalloc(er.er_data_len, GFP_KERNEL);
+        er.er_data = kmalloc(er.er_data_len, GFP_NOFS);
         error = -ENOMEM;
         if (!er.er_data)
                 goto out;
@@ -222,7 +222,7 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
                 return error;
         }
 
-        clone = posix_acl_clone(acl, GFP_KERNEL);
+        clone = posix_acl_clone(acl, GFP_NOFS);
         error = -ENOMEM;
         if (!clone)
                 goto out;
@@ -272,7 +272,7 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
         if (!acl)
                 return gfs2_setattr_simple(ip, attr);
 
-        clone = posix_acl_clone(acl, GFP_KERNEL);
+        clone = posix_acl_clone(acl, GFP_NOFS);
         error = -ENOMEM;
         if (!clone)
                 goto out;