GFS2: Change truncate page allocation to be GFP_NOFS

This patch changes the page allocation in gfs2_block_truncate_page
and two others to GFP_NOFS to avoid deadlock in low-memory conditions.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

2 files changed, 3 insertions, 3 deletions

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 14a704015970..197c5c47e577 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -60,7 +60,7 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
         int release = 0;
 
         if (!page || page->index) {
-                page = grab_cache_page(inode->i_mapping, 0);
+                page = find_or_create_page(inode->i_mapping, 0, GFP_NOFS);
                 if (!page)
                         return -ENOMEM;
                 release = 1;
@@ -930,7 +930,7 @@ static int gfs2_block_truncate_page(struct address_space *mapping, loff_t from)
         struct page *page;
         int err;
 
-        page = grab_cache_page(mapping, index);
+        page = find_or_create_page(mapping, index, GFP_NOFS);
         if (!page)
                 return 0;
 
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index a45b21b03915..4856c66640bf 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -681,7 +681,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
         ptr = qp;
         nbytes = sizeof(struct gfs2_quota);
 get_a_page:
-        page = grab_cache_page(mapping, index);
+        page = find_or_create_page(mapping, index, GFP_NOFS);
         if (!page)
                 return -ENOMEM;