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Diffstat (limited to 'fs/btrfs/inode-map.c')
-rw-r--r--fs/btrfs/inode-map.c32
1 files changed, 25 insertions, 7 deletions
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 2e8bb402050b..63cad7865d75 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -13,6 +13,19 @@
#include "transaction.h"
#include "delalloc-space.h"
+static void fail_caching_thread(struct btrfs_root *root)
+{
+ struct btrfs_fs_info *fs_info = root->fs_info;
+
+ btrfs_warn(fs_info, "failed to start inode caching task");
+ btrfs_clear_pending_and_info(fs_info, INODE_MAP_CACHE,
+ "disabling inode map caching");
+ spin_lock(&root->ino_cache_lock);
+ root->ino_cache_state = BTRFS_CACHE_ERROR;
+ spin_unlock(&root->ino_cache_lock);
+ wake_up(&root->ino_cache_wait);
+}
+
static int caching_kthread(void *data)
{
struct btrfs_root *root = data;
@@ -29,8 +42,10 @@ static int caching_kthread(void *data)
return 0;
path = btrfs_alloc_path();
- if (!path)
+ if (!path) {
+ fail_caching_thread(root);
return -ENOMEM;
+ }
/* Since the commit root is read-only, we can safely skip locking. */
path->skip_locking = 1;
@@ -146,6 +161,7 @@ static void start_caching(struct btrfs_root *root)
spin_lock(&root->ino_cache_lock);
root->ino_cache_state = BTRFS_CACHE_FINISHED;
spin_unlock(&root->ino_cache_lock);
+ wake_up(&root->ino_cache_wait);
return;
}
@@ -160,15 +176,13 @@ static void start_caching(struct btrfs_root *root)
if (!ret && objectid <= BTRFS_LAST_FREE_OBJECTID) {
__btrfs_add_free_space(fs_info, ctl, objectid,
BTRFS_LAST_FREE_OBJECTID - objectid + 1);
+ wake_up(&root->ino_cache_wait);
}
tsk = kthread_run(caching_kthread, root, "btrfs-ino-cache-%llu",
root->root_key.objectid);
- if (IS_ERR(tsk)) {
- btrfs_warn(fs_info, "failed to start inode caching task");
- btrfs_clear_pending_and_info(fs_info, INODE_MAP_CACHE,
- "disabling inode map caching");
- }
+ if (IS_ERR(tsk))
+ fail_caching_thread(root);
}
int btrfs_find_free_ino(struct btrfs_root *root, u64 *objectid)
@@ -186,11 +200,14 @@ again:
wait_event(root->ino_cache_wait,
root->ino_cache_state == BTRFS_CACHE_FINISHED ||
+ root->ino_cache_state == BTRFS_CACHE_ERROR ||
root->free_ino_ctl->free_space > 0);
if (root->ino_cache_state == BTRFS_CACHE_FINISHED &&
root->free_ino_ctl->free_space == 0)
return -ENOSPC;
+ else if (root->ino_cache_state == BTRFS_CACHE_ERROR)
+ return btrfs_find_free_objectid(root, objectid);
else
goto again;
}
@@ -419,7 +436,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
* 1 item for free space object
* 3 items for pre-allocation
*/
- trans->bytes_reserved = btrfs_calc_trans_metadata_size(fs_info, 10);
+ trans->bytes_reserved = btrfs_calc_insert_metadata_size(fs_info, 10);
ret = btrfs_block_rsv_add(root, trans->block_rsv,
trans->bytes_reserved,
BTRFS_RESERVE_NO_FLUSH);
@@ -485,6 +502,7 @@ again:
prealloc, prealloc, &alloc_hint);
if (ret) {
btrfs_delalloc_release_extents(BTRFS_I(inode), prealloc, true);
+ btrfs_delalloc_release_metadata(BTRFS_I(inode), prealloc, true);
goto out_put;
}