AcoSail/kernel_optimize_test
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btrfs: let callers of btrfs_alloc_root pass gfp flags

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We don't need to use GFP_NOFS in all contexts, eg. during mount or for
dummy root tree, but we might for the the log tree creation.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-02-11 11:01:55 +01:00
parent 58c4e17384
commit 74e4d82757
1 changed files with 11 additions and 10 deletions
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21
fs/btrfs/disk-io.c
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@ -1296,9 +1296,10 @@ static void __setup_root(u32 nodesize, u32 sectorsize, u32 stripesize,
spin_lock_init(&root->root_item_lock);
}
static struct btrfs_root *btrfs_alloc_root(struct btrfs_fs_info *fs_info)
static struct btrfs_root *btrfs_alloc_root(struct btrfs_fs_info *fs_info,
gfp_t flags)
{
struct btrfs_root *root = kzalloc(sizeof(*root), GFP_NOFS);
struct btrfs_root *root = kzalloc(sizeof(*root), flags);
if (root)
root->fs_info = fs_info;
return root;
@ -1310,7 +1311,7 @@ struct btrfs_root *btrfs_alloc_dummy_root(void)
{
struct btrfs_root *root;
root = btrfs_alloc_root(NULL);
root = btrfs_alloc_root(NULL, GFP_KERNEL);
if (!root)
return ERR_PTR(-ENOMEM);
__setup_root(4096, 4096, 4096, root, NULL, 1);
@ -1332,7 +1333,7 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
int ret = 0;
uuid_le uuid;
root = btrfs_alloc_root(fs_info);
root = btrfs_alloc_root(fs_info, GFP_KERNEL);
if (!root)
return ERR_PTR(-ENOMEM);
@ -1408,7 +1409,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,
struct btrfs_root *tree_root = fs_info->tree_root;
struct extent_buffer *leaf;
root = btrfs_alloc_root(fs_info);
root = btrfs_alloc_root(fs_info, GFP_NOFS);
if (!root)
return ERR_PTR(-ENOMEM);
@ -1506,7 +1507,7 @@ static struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,
if (!path)
return ERR_PTR(-ENOMEM);
root = btrfs_alloc_root(fs_info);
root = btrfs_alloc_root(fs_info, GFP_NOFS);
if (!root) {
ret = -ENOMEM;
goto alloc_fail;
@ -2385,7 +2386,7 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
return -EIO;
}
log_tree_root = btrfs_alloc_root(fs_info);
log_tree_root = btrfs_alloc_root(fs_info, GFP_KERNEL);
if (!log_tree_root)
return -ENOMEM;
@ -2510,8 +2511,8 @@ int open_ctree(struct super_block *sb,
int backup_index = 0;
int max_active;
tree_root = fs_info->tree_root = btrfs_alloc_root(fs_info);
chunk_root = fs_info->chunk_root = btrfs_alloc_root(fs_info);
tree_root = fs_info->tree_root = btrfs_alloc_root(fs_info, GFP_KERNEL);
chunk_root = fs_info->chunk_root = btrfs_alloc_root(fs_info, GFP_KERNEL);
if (!tree_root || !chunk_root) {
err = -ENOMEM;
goto fail;
@ -2622,7 +2623,7 @@ int open_ctree(struct super_block *sb,
INIT_LIST_HEAD(&fs_info->ordered_roots);
spin_lock_init(&fs_info->ordered_root_lock);
fs_info->delayed_root = kmalloc(sizeof(struct btrfs_delayed_root),
GFP_NOFS);
GFP_KERNEL);
if (!fs_info->delayed_root) {
err = -ENOMEM;
goto fail_iput;