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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix meta data raid-repair merge problem
  Btrfs: skip allocation attempt from empty cluster
  Btrfs: skip block groups without enough space for a cluster
  Btrfs: start search for new cluster at the beginning
  Btrfs: reset cluster's max_size when creating bitmap
  Btrfs: initialize new bitmaps' list
  Btrfs: fix oops when calling statfs on readonly device
  Btrfs: Don't error on resizing FS to same size
  Btrfs: fix deadlock on metadata reservation when evicting a inode
  Fix URL of btrfs-progs git repository in docs
  btrfs scrub: handle -ENOMEM from init_ipath()
This commit is contained in:
Linus Torvalds
2011-12-01 08:28:53 -08:00
parent 11d814a201 f4a8e6563e
commit b930c26416
9 changed files with 60 additions and 25 deletions
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34
fs/btrfs/extent-tree.c
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@@ -3888,9 +3888,9 @@ int btrfs_block_rsv_check(struct btrfs_root *root,
return ret;
}
int btrfs_block_rsv_refill(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv,
u64 min_reserved)
static inline int __btrfs_block_rsv_refill(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv,
u64 min_reserved, int flush)
{
u64 num_bytes = 0;
int ret = -ENOSPC;
@@ -3909,7 +3909,7 @@ int btrfs_block_rsv_refill(struct btrfs_root *root,
if (!ret)
return 0;
ret = reserve_metadata_bytes(root, block_rsv, num_bytes, 1);
ret = reserve_metadata_bytes(root, block_rsv, num_bytes, flush);
if (!ret) {
block_rsv_add_bytes(block_rsv, num_bytes, 0);
return 0;
@@ -3918,6 +3918,20 @@ int btrfs_block_rsv_refill(struct btrfs_root *root,
return ret;
}
int btrfs_block_rsv_refill(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv,
u64 min_reserved)
{
return __btrfs_block_rsv_refill(root, block_rsv, min_reserved, 1);
}
int btrfs_block_rsv_refill_noflush(struct btrfs_root *root,
struct btrfs_block_rsv *block_rsv,
u64 min_reserved)
{
return __btrfs_block_rsv_refill(root, block_rsv, min_reserved, 0);
}
int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv,
struct btrfs_block_rsv *dst_rsv,
u64 num_bytes)
@@ -5265,7 +5279,7 @@ alloc:
spin_lock(&block_group->free_space_ctl->tree_lock);
if (cached &&
block_group->free_space_ctl->free_space <
num_bytes + empty_size) {
num_bytes + empty_cluster + empty_size) {
spin_unlock(&block_group->free_space_ctl->tree_lock);
goto loop;
}
@@ -5286,12 +5300,10 @@ alloc:
* people trying to start a new cluster
*/
spin_lock(&last_ptr->refill_lock);
if (last_ptr->block_group &&
(last_ptr->block_group->ro ||
!block_group_bits(last_ptr->block_group, data))) {
offset = 0;
if (!last_ptr->block_group ||
last_ptr->block_group->ro ||
!block_group_bits(last_ptr->block_group, data))
goto refill_cluster;
}
offset = btrfs_alloc_from_cluster(block_group, last_ptr,
num_bytes, search_start);
@@ -5342,7 +5354,7 @@ refill_cluster:
/* allocate a cluster in this block group */
ret = btrfs_find_space_cluster(trans, root,
block_group, last_ptr,
offset, num_bytes,
search_start, num_bytes,
empty_cluster + empty_size);
if (ret == 0) {
/*