diff options
author | Josef Bacik <jbacik@fb.com> | 2016-03-25 13:25:48 -0400 |
---|---|---|
committer | David Sterba <dsterba@suse.com> | 2016-07-07 18:45:53 +0200 |
commit | 25d609f86d6808eb1f0e8a6cafc3edb4a2b5ae35 (patch) | |
tree | 24b8d9a911aa57675c5ade8f46028d32e77c521a | |
parent | e40edf2da4fc6ab10c707b0522372b08b38171e6 (diff) | |
download | op-kernel-dev-25d609f86d6808eb1f0e8a6cafc3edb4a2b5ae35.zip op-kernel-dev-25d609f86d6808eb1f0e8a6cafc3edb4a2b5ae35.tar.gz |
Btrfs: fix callers of btrfs_block_rsv_migrate
So btrfs_block_rsv_migrate just unconditionally calls block_rsv_migrate_bytes.
Not only this but it unconditionally changes the size of the block_rsv. This
isn't a bug strictly speaking, but it makes truncate block rsv's look funny
because every time we migrate bytes over its size grows, even though we only
want it to be a specific size. So collapse this into one function that takes an
update_size argument and make truncate and evict not update the size for
consistency sake. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r-- | fs/btrfs/ctree.h | 4 | ||||
-rw-r--r-- | fs/btrfs/delayed-inode.c | 8 | ||||
-rw-r--r-- | fs/btrfs/extent-tree.c | 18 | ||||
-rw-r--r-- | fs/btrfs/file.c | 4 | ||||
-rw-r--r-- | fs/btrfs/inode.c | 7 | ||||
-rw-r--r-- | fs/btrfs/relocation.c | 2 |
6 files changed, 18 insertions, 25 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 4274a7b..fe16474 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2661,8 +2661,8 @@ int btrfs_block_rsv_refill(struct btrfs_root *root, struct btrfs_block_rsv *block_rsv, u64 min_reserved, enum btrfs_reserve_flush_enum flush); int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, - struct btrfs_block_rsv *dst_rsv, - u64 num_bytes); + struct btrfs_block_rsv *dst_rsv, u64 num_bytes, + int update_size); int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info, struct btrfs_block_rsv *dest, u64 num_bytes, int min_factor); diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index d3aaabb..f749a54 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -553,7 +553,7 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans, dst_rsv = &root->fs_info->delayed_block_rsv; num_bytes = btrfs_calc_trans_metadata_size(root, 1); - ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes); + ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1); if (!ret) { trace_btrfs_space_reservation(root->fs_info, "delayed_item", item->key.objectid, @@ -649,7 +649,7 @@ static int btrfs_delayed_inode_reserve_metadata( if (!ret) goto out; - ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes); + ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1); if (!ret) goto out; @@ -663,12 +663,12 @@ static int btrfs_delayed_inode_reserve_metadata( * since this really shouldn't happen that often. */ ret = btrfs_block_rsv_migrate(&root->fs_info->global_block_rsv, - dst_rsv, num_bytes); + dst_rsv, num_bytes, 1); goto out; } migrate: - ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes); + ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1); out: /* diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 777d9a5..1ceabb7 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -5265,8 +5265,9 @@ static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info, } } -static int block_rsv_migrate_bytes(struct btrfs_block_rsv *src, - struct btrfs_block_rsv *dst, u64 num_bytes) +int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src, + struct btrfs_block_rsv *dst, u64 num_bytes, + int update_size) { int ret; @@ -5274,7 +5275,7 @@ static int block_rsv_migrate_bytes(struct btrfs_block_rsv *src, if (ret) return ret; - block_rsv_add_bytes(dst, num_bytes, 1); + block_rsv_add_bytes(dst, num_bytes, update_size); return 0; } @@ -5381,13 +5382,6 @@ int btrfs_block_rsv_refill(struct btrfs_root *root, return ret; } -int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, - struct btrfs_block_rsv *dst_rsv, - u64 num_bytes) -{ - return block_rsv_migrate_bytes(src_rsv, dst_rsv, num_bytes); -} - void btrfs_block_rsv_release(struct btrfs_root *root, struct btrfs_block_rsv *block_rsv, u64 num_bytes) @@ -5567,7 +5561,7 @@ int btrfs_orphan_reserve_metadata(struct btrfs_trans_handle *trans, u64 num_bytes = btrfs_calc_trans_metadata_size(root, 1); trace_btrfs_space_reservation(root->fs_info, "orphan", btrfs_ino(inode), num_bytes, 1); - return block_rsv_migrate_bytes(src_rsv, dst_rsv, num_bytes); + return btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1); } void btrfs_orphan_release_metadata(struct inode *inode) @@ -5622,7 +5616,7 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root, BTRFS_RESERVE_FLUSH_ALL); if (ret == -ENOSPC && use_global_rsv) - ret = btrfs_block_rsv_migrate(global_rsv, rsv, num_bytes); + ret = btrfs_block_rsv_migrate(global_rsv, rsv, num_bytes, 1); if (ret && *qgroup_reserved) btrfs_qgroup_free_meta(root, *qgroup_reserved); diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 2234e88..f3f61d1 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -2479,7 +2479,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) } ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv, - min_size); + min_size, 0); BUG_ON(ret); trans->block_rsv = rsv; @@ -2522,7 +2522,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) } ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, - rsv, min_size); + rsv, min_size, 0); BUG_ON(ret); /* shouldn't happen */ trans->block_rsv = rsv; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 4421954..3e61bd1 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5264,7 +5264,7 @@ void btrfs_evict_inode(struct inode *inode) if (steal_from_global) { if (!btrfs_check_space_for_delayed_refs(trans, root)) ret = btrfs_block_rsv_migrate(global_rsv, rsv, - min_size); + min_size, 0); else ret = -ENOSPC; } @@ -9116,7 +9116,7 @@ static int btrfs_truncate(struct inode *inode) /* Migrate the slack space for the truncate to our reserve */ ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv, - min_size); + min_size, 0); BUG_ON(ret); /* @@ -9156,7 +9156,7 @@ static int btrfs_truncate(struct inode *inode) } ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, - rsv, min_size); + rsv, min_size, 0); BUG_ON(ret); /* shouldn't happen */ trans->block_rsv = rsv; } @@ -9177,7 +9177,6 @@ static int btrfs_truncate(struct inode *inode) ret = btrfs_end_transaction(trans, root); btrfs_btree_balance_dirty(root); } - out: btrfs_free_block_rsv(root, rsv); diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 0477dca..0bf3bc8 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -4643,7 +4643,7 @@ int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans, if (rc->merge_reloc_tree) { ret = btrfs_block_rsv_migrate(&pending->block_rsv, rc->block_rsv, - rc->nodes_relocated); + rc->nodes_relocated, 1); if (ret) return ret; } |