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-rw-r--r--fs/btrfs/inode.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 8005be176252..96fc9e342219 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3526,7 +3526,7 @@ void btrfs_evict_inode(struct inode *inode)
{
struct btrfs_trans_handle *trans;
struct btrfs_root *root = BTRFS_I(inode)->root;
- struct btrfs_block_rsv *rsv;
+ struct btrfs_block_rsv *rsv, *global_rsv;
u64 min_size = btrfs_calc_trunc_metadata_size(root, 1);
unsigned long nr;
int ret;
@@ -3561,6 +3561,7 @@ void btrfs_evict_inode(struct inode *inode)
goto no_delete;
}
rsv->size = min_size;
+ global_rsv = &root->fs_info->global_block_rsv;
btrfs_i_size_write(inode, 0);
@@ -3577,6 +3578,15 @@ void btrfs_evict_inode(struct inode *inode)
*/
while (1) {
ret = btrfs_block_rsv_check(root, rsv, min_size, 0, 1);
+
+ /*
+ * Try and steal from the global reserve since we will
+ * likely not use this space anyway, we want to try as
+ * hard as possible to get this to work.
+ */
+ if (ret)
+ ret = btrfs_block_rsv_migrate(global_rsv, rsv, min_size);
+
if (ret) {
printk(KERN_WARNING "Could not get space for a "
"delete, will truncate on mount %d\n", ret);