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Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c35
1 files changed, 23 insertions, 12 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2bf4d2b97d5..55d68ea1866 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1298,7 +1298,9 @@ static int btrfs_split_extent_hook(struct inode *inode,
if (!(orig->state & EXTENT_DELALLOC))
return 0;
- atomic_inc(&BTRFS_I(inode)->outstanding_extents);
+ spin_lock(&BTRFS_I(inode)->lock);
+ BTRFS_I(inode)->outstanding_extents++;
+ spin_unlock(&BTRFS_I(inode)->lock);
return 0;
}
@@ -1316,7 +1318,9 @@ static int btrfs_merge_extent_hook(struct inode *inode,
if (!(other->state & EXTENT_DELALLOC))
return 0;
- atomic_dec(&BTRFS_I(inode)->outstanding_extents);
+ spin_lock(&BTRFS_I(inode)->lock);
+ BTRFS_I(inode)->outstanding_extents--;
+ spin_unlock(&BTRFS_I(inode)->lock);
return 0;
}
@@ -1339,10 +1343,13 @@ static int btrfs_set_bit_hook(struct inode *inode,
u64 len = state->end + 1 - state->start;
bool do_list = !is_free_space_inode(root, inode);
- if (*bits & EXTENT_FIRST_DELALLOC)
+ if (*bits & EXTENT_FIRST_DELALLOC) {
*bits &= ~EXTENT_FIRST_DELALLOC;
- else
- atomic_inc(&BTRFS_I(inode)->outstanding_extents);
+ } else {
+ spin_lock(&BTRFS_I(inode)->lock);
+ BTRFS_I(inode)->outstanding_extents++;
+ spin_unlock(&BTRFS_I(inode)->lock);
+ }
spin_lock(&root->fs_info->delalloc_lock);
BTRFS_I(inode)->delalloc_bytes += len;
@@ -1372,10 +1379,13 @@ static int btrfs_clear_bit_hook(struct inode *inode,
u64 len = state->end + 1 - state->start;
bool do_list = !is_free_space_inode(root, inode);
- if (*bits & EXTENT_FIRST_DELALLOC)
+ if (*bits & EXTENT_FIRST_DELALLOC) {
*bits &= ~EXTENT_FIRST_DELALLOC;
- else if (!(*bits & EXTENT_DO_ACCOUNTING))
- atomic_dec(&BTRFS_I(inode)->outstanding_extents);
+ } else if (!(*bits & EXTENT_DO_ACCOUNTING)) {
+ spin_lock(&BTRFS_I(inode)->lock);
+ BTRFS_I(inode)->outstanding_extents--;
+ spin_unlock(&BTRFS_I(inode)->lock);
+ }
if (*bits & EXTENT_DO_ACCOUNTING)
btrfs_delalloc_release_metadata(inode, len);
@@ -6735,8 +6745,9 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
ei->index_cnt = (u64)-1;
ei->last_unlink_trans = 0;
- atomic_set(&ei->outstanding_extents, 0);
- atomic_set(&ei->reserved_extents, 0);
+ spin_lock_init(&ei->lock);
+ ei->outstanding_extents = 0;
+ ei->reserved_extents = 0;
ei->ordered_data_close = 0;
ei->orphan_meta_reserved = 0;
@@ -6774,8 +6785,8 @@ void btrfs_destroy_inode(struct inode *inode)
WARN_ON(!list_empty(&inode->i_dentry));
WARN_ON(inode->i_data.nrpages);
- WARN_ON(atomic_read(&BTRFS_I(inode)->outstanding_extents));
- WARN_ON(atomic_read(&BTRFS_I(inode)->reserved_extents));
+ WARN_ON(BTRFS_I(inode)->outstanding_extents);
+ WARN_ON(BTRFS_I(inode)->reserved_extents);
/*
* This can happen where we create an inode, but somebody else also