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authorJosef Bacik <josef@redhat.com>2011-09-21 23:05:58 +0400
committerJosef Bacik <josef@redhat.com>2011-10-19 23:12:45 +0400
commit3b16a4e3c355ee3c790473decfcf83d4faeb8ce0 (patch)
tree5c3dad941468cf6952623cc18d6b1e682ee3f264 /fs/btrfs/ioctl.c
parent455757c322cc0a0f2a692c5625dd88aaf6a7b889 (diff)
downloadlinux-3b16a4e3c355ee3c790473decfcf83d4faeb8ce0.tar.xz
Btrfs: use the inode's mapping mask for allocating pages
Johannes pointed out we were allocating only kernel pages for doing writes, which is kind of a big deal if you are on 32bit and have more than a gig of ram. So fix our allocations to use the mapping's gfp but still clear __GFP_FS so we don't re-enter. Thanks, Reported-by: Johannes Weiner <jweiner@redhat.com> Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r--fs/btrfs/ioctl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 538f65a79ec5..24fd75bb0f96 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -843,6 +843,7 @@ static int cluster_pages_for_defrag(struct inode *inode,
int i_done;
struct btrfs_ordered_extent *ordered;
struct extent_state *cached_state = NULL;
+ gfp_t mask = btrfs_alloc_write_mask(inode->i_mapping);
if (isize == 0)
return 0;
@@ -860,7 +861,7 @@ again:
for (i = 0; i < num_pages; i++) {
struct page *page;
page = find_or_create_page(inode->i_mapping,
- start_index + i, GFP_NOFS);
+ start_index + i, mask);
if (!page)
break;