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authorDavid Sterba <dsterba@suse.cz>2011-05-31 18:07:27 +0200
committerChris Mason <chris.mason@oracle.com>2011-06-04 08:11:22 -0400
commit7841cb2898f66a73062c64d0ef5733dde7279e46 (patch)
treeb7a94d96d44971845951a59e9fb7b5c2e30c46b3 /fs/btrfs/free-space-cache.c
parent4b9465cb9e3859186eefa1ca3b990a5849386320 (diff)
btrfs: add helper for fs_info->closing
wrap checking of filesystem 'closing' flag and fix a few missing memory barriers. Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
-rw-r--r--fs/btrfs/free-space-cache.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index bffa5c4a633..ad144736a5f 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -98,7 +98,7 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root,
return inode;
spin_lock(&block_group->lock);
- if (!root->fs_info->closing) {
+ if (!btrfs_fs_closing(root->fs_info)) {
block_group->inode = igrab(inode);
block_group->iref = 1;
}
@@ -493,8 +493,7 @@ int load_free_space_cache(struct btrfs_fs_info *fs_info,
* If we're unmounting then just return, since this does a search on the
* normal root and not the commit root and we could deadlock.
*/
- smp_mb();
- if (fs_info->closing)
+ if (btrfs_fs_closing(fs_info))
return 0;
/*
@@ -2513,7 +2512,7 @@ struct inode *lookup_free_ino_inode(struct btrfs_root *root,
return inode;
spin_lock(&root->cache_lock);
- if (!root->fs_info->closing)
+ if (!btrfs_fs_closing(root->fs_info))
root->cache_inode = igrab(inode);
spin_unlock(&root->cache_lock);
@@ -2543,8 +2542,7 @@ int load_free_ino_cache(struct btrfs_fs_info *fs_info, struct btrfs_root *root)
* If we're unmounting then just return, since this does a search on the
* normal root and not the commit root and we could deadlock.
*/
- smp_mb();
- if (fs_info->closing)
+ if (btrfs_fs_closing(fs_info))
return 0;
path = btrfs_alloc_path();