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authorWang Shilong <wangsl.fnst@cn.fujitsu.com>2013-08-06 10:29:54 +0800
committerChris Mason <chris.mason@fusionio.com>2013-09-01 08:16:26 -0400
commit742916b885edbc6453b4769458959929746e8e7e (patch)
tree8eec349149de72e9f3d10f7d585814aa41e92324 /fs/btrfs/backref.c
parentf71717502460c5cd6409b66835b17ae00af6d5f1 (diff)
downloadop-kernel-dev-742916b885edbc6453b4769458959929746e8e7e.zip
op-kernel-dev-742916b885edbc6453b4769458959929746e8e7e.tar.gz
Btrfs: pass gfp_t to __add_prelim_ref() to avoid always using GFP_ATOMIC
Currently, only add_delayed_refs have to allocate with GFP_ATOMIC, So just pass arg 'gfp_t' to decide which allocation mode. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Reviewed-by: Miao Xie <miaox@cn.fujitsu.com> Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/backref.c')
-rw-r--r--fs/btrfs/backref.c30
1 files changed, 15 insertions, 15 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 3da8f42..f3cb191 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -160,12 +160,12 @@ struct __prelim_ref {
static int __add_prelim_ref(struct list_head *head, u64 root_id,
struct btrfs_key *key, int level,
- u64 parent, u64 wanted_disk_byte, int count)
+ u64 parent, u64 wanted_disk_byte, int count,
+ gfp_t gfp_mask)
{
struct __prelim_ref *ref;
- /* in case we're adding delayed refs, we're holding the refs spinlock */
- ref = kmalloc(sizeof(*ref), GFP_ATOMIC);
+ ref = kmalloc(sizeof(*ref), gfp_mask);
if (!ref)
return -ENOMEM;
@@ -547,7 +547,7 @@ static int __add_delayed_refs(struct btrfs_delayed_ref_head *head, u64 seq,
ref = btrfs_delayed_node_to_tree_ref(node);
ret = __add_prelim_ref(prefs, ref->root, &op_key,
ref->level + 1, 0, node->bytenr,
- node->ref_mod * sgn);
+ node->ref_mod * sgn, GFP_ATOMIC);
break;
}
case BTRFS_SHARED_BLOCK_REF_KEY: {
@@ -557,7 +557,7 @@ static int __add_delayed_refs(struct btrfs_delayed_ref_head *head, u64 seq,
ret = __add_prelim_ref(prefs, ref->root, NULL,
ref->level + 1, ref->parent,
node->bytenr,
- node->ref_mod * sgn);
+ node->ref_mod * sgn, GFP_ATOMIC);
break;
}
case BTRFS_EXTENT_DATA_REF_KEY: {
@@ -569,7 +569,7 @@ static int __add_delayed_refs(struct btrfs_delayed_ref_head *head, u64 seq,
key.offset = ref->offset;
ret = __add_prelim_ref(prefs, ref->root, &key, 0, 0,
node->bytenr,
- node->ref_mod * sgn);
+ node->ref_mod * sgn, GFP_ATOMIC);
break;
}
case BTRFS_SHARED_DATA_REF_KEY: {
@@ -582,7 +582,7 @@ static int __add_delayed_refs(struct btrfs_delayed_ref_head *head, u64 seq,
key.offset = ref->offset;
ret = __add_prelim_ref(prefs, ref->root, &key, 0,
ref->parent, node->bytenr,
- node->ref_mod * sgn);
+ node->ref_mod * sgn, GFP_ATOMIC);
break;
}
default:
@@ -656,7 +656,7 @@ static int __add_inline_refs(struct btrfs_fs_info *fs_info,
case BTRFS_SHARED_BLOCK_REF_KEY:
ret = __add_prelim_ref(prefs, 0, NULL,
*info_level + 1, offset,
- bytenr, 1);
+ bytenr, 1, GFP_NOFS);
break;
case BTRFS_SHARED_DATA_REF_KEY: {
struct btrfs_shared_data_ref *sdref;
@@ -665,13 +665,13 @@ static int __add_inline_refs(struct btrfs_fs_info *fs_info,
sdref = (struct btrfs_shared_data_ref *)(iref + 1);
count = btrfs_shared_data_ref_count(leaf, sdref);
ret = __add_prelim_ref(prefs, 0, NULL, 0, offset,
- bytenr, count);
+ bytenr, count, GFP_NOFS);
break;
}
case BTRFS_TREE_BLOCK_REF_KEY:
ret = __add_prelim_ref(prefs, offset, NULL,
*info_level + 1, 0,
- bytenr, 1);
+ bytenr, 1, GFP_NOFS);
break;
case BTRFS_EXTENT_DATA_REF_KEY: {
struct btrfs_extent_data_ref *dref;
@@ -686,7 +686,7 @@ static int __add_inline_refs(struct btrfs_fs_info *fs_info,
key.offset = btrfs_extent_data_ref_offset(leaf, dref);
root = btrfs_extent_data_ref_root(leaf, dref);
ret = __add_prelim_ref(prefs, root, &key, 0, 0,
- bytenr, count);
+ bytenr, count, GFP_NOFS);
break;
}
default:
@@ -737,7 +737,7 @@ static int __add_keyed_refs(struct btrfs_fs_info *fs_info,
case BTRFS_SHARED_BLOCK_REF_KEY:
ret = __add_prelim_ref(prefs, 0, NULL,
info_level + 1, key.offset,
- bytenr, 1);
+ bytenr, 1, GFP_NOFS);
break;
case BTRFS_SHARED_DATA_REF_KEY: {
struct btrfs_shared_data_ref *sdref;
@@ -747,13 +747,13 @@ static int __add_keyed_refs(struct btrfs_fs_info *fs_info,
struct btrfs_shared_data_ref);
count = btrfs_shared_data_ref_count(leaf, sdref);
ret = __add_prelim_ref(prefs, 0, NULL, 0, key.offset,
- bytenr, count);
+ bytenr, count, GFP_NOFS);
break;
}
case BTRFS_TREE_BLOCK_REF_KEY:
ret = __add_prelim_ref(prefs, key.offset, NULL,
info_level + 1, 0,
- bytenr, 1);
+ bytenr, 1, GFP_NOFS);
break;
case BTRFS_EXTENT_DATA_REF_KEY: {
struct btrfs_extent_data_ref *dref;
@@ -769,7 +769,7 @@ static int __add_keyed_refs(struct btrfs_fs_info *fs_info,
key.offset = btrfs_extent_data_ref_offset(leaf, dref);
root = btrfs_extent_data_ref_root(leaf, dref);
ret = __add_prelim_ref(prefs, root, &key, 0, 0,
- bytenr, count);
+ bytenr, count, GFP_NOFS);
break;
}
default:
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