diff options
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 677d5e774fad..db37b867e4f1 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1505,7 +1505,7 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans, u64 thresh; u64 start; u64 num_bytes; - int ret = 0; + int ret = 0, waited = 0; flags = reduce_alloc_profile(extent_root, flags); @@ -1530,7 +1530,18 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans, space_info->bytes_reserved + alloc_bytes) < thresh) goto out; - mutex_lock(&extent_root->fs_info->chunk_mutex); + while (!mutex_trylock(&extent_root->fs_info->chunk_mutex)) { + if (!force) + goto out; + mutex_unlock(&extent_root->fs_info->alloc_mutex); + cond_resched(); + mutex_lock(&extent_root->fs_info->alloc_mutex); + waited = 1; + } + + if (waited && space_info->full) + goto out_unlock; + ret = btrfs_alloc_chunk(trans, extent_root, &start, &num_bytes, flags); if (ret == -ENOSPC) { printk("space info full %Lu\n", flags); |