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| author | Miao Xie <miaox@cn.fujitsu.com> | 2011-03-24 11:41:21 +0000 |
|---|---|---|
| committer | root <Chris Mason chris.mason@oracle.com> | 2011-03-28 05:37:39 -0400 |
| commit | fc0e4a314e361af3b13d9320e92c64118f9a3e61 (patch) | |
| tree | 5bb9f51968375e5a7e19751da028bb5a8b74c624 /fs | |
| parent | 97d9a8a420444eb5b5c071d4b3b9c4100a7ae015 (diff) | |
| download | lwn-fc0e4a314e361af3b13d9320e92c64118f9a3e61.tar.gz lwn-fc0e4a314e361af3b13d9320e92c64118f9a3e61.zip | |
btrfs: use GFP_NOFS instead of GFP_KERNEL
In the filesystem context, we must allocate memory by GFP_NOFS,
or we may start another filesystem operation and make kswap thread hang up.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 5bc658a9d85c..7922f296420d 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -471,7 +471,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache, if (load_cache_only) return 0; - caching_ctl = kzalloc(sizeof(*caching_ctl), GFP_KERNEL); + caching_ctl = kzalloc(sizeof(*caching_ctl), GFP_NOFS); BUG_ON(!caching_ctl); INIT_LIST_HEAD(&caching_ctl->list); @@ -1743,7 +1743,7 @@ static int remove_extent_backref(struct btrfs_trans_handle *trans, static void btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len) { - blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL, 0); + blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_NOFS, 0); } static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr, |