diff options
Diffstat (limited to 'fs/btrfs/delalloc-space.c')
| -rw-r--r-- | fs/btrfs/delalloc-space.c | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/fs/btrfs/delalloc-space.c b/fs/btrfs/delalloc-space.c index fb46a28f5065..118b2e20b2e1 100644 --- a/fs/btrfs/delalloc-space.c +++ b/fs/btrfs/delalloc-space.c @@ -127,9 +127,11 @@ int btrfs_alloc_data_chunk_ondemand(struct btrfs_inode *inode, u64 bytes) } int btrfs_check_data_free_space(struct btrfs_inode *inode, - struct extent_changeset **reserved, u64 start, u64 len) + struct extent_changeset **reserved, u64 start, + u64 len, bool noflush) { struct btrfs_fs_info *fs_info = inode->root->fs_info; + enum btrfs_reserve_flush_enum flush = BTRFS_RESERVE_FLUSH_DATA; int ret; /* align the range */ @@ -137,7 +139,12 @@ int btrfs_check_data_free_space(struct btrfs_inode *inode, round_down(start, fs_info->sectorsize); start = round_down(start, fs_info->sectorsize); - ret = btrfs_alloc_data_chunk_ondemand(inode, len); + if (noflush) + flush = BTRFS_RESERVE_NO_FLUSH; + else if (btrfs_is_free_space_inode(inode)) + flush = BTRFS_RESERVE_FLUSH_FREE_SPACE_INODE; + + ret = btrfs_reserve_data_bytes(fs_info, len, flush); if (ret < 0) return ret; @@ -270,11 +277,11 @@ static void btrfs_calculate_inode_block_rsv_size(struct btrfs_fs_info *fs_info, } static void calc_inode_reservations(struct btrfs_fs_info *fs_info, - u64 num_bytes, u64 *meta_reserve, - u64 *qgroup_reserve) + u64 num_bytes, u64 disk_num_bytes, + u64 *meta_reserve, u64 *qgroup_reserve) { - u64 nr_extents = count_max_extents(num_bytes); - u64 csum_leaves = btrfs_csum_bytes_to_leaves(fs_info, num_bytes); + u64 nr_extents = count_max_extents(fs_info, num_bytes); + u64 csum_leaves = btrfs_csum_bytes_to_leaves(fs_info, disk_num_bytes); u64 inode_update = btrfs_calc_metadata_size(fs_info, 1); *meta_reserve = btrfs_calc_insert_metadata_size(fs_info, @@ -288,7 +295,8 @@ static void calc_inode_reservations(struct btrfs_fs_info *fs_info, *qgroup_reserve = nr_extents * fs_info->nodesize; } -int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes) +int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes, + u64 disk_num_bytes, bool noflush) { struct btrfs_root *root = inode->root; struct btrfs_fs_info *fs_info = root->fs_info; @@ -307,7 +315,7 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes) * If we have a transaction open (can happen if we call truncate_block * from truncate), then we need FLUSH_LIMIT so we don't deadlock. */ - if (btrfs_is_free_space_inode(inode)) { + if (noflush || btrfs_is_free_space_inode(inode)) { flush = BTRFS_RESERVE_NO_FLUSH; } else { if (current->journal_info) @@ -318,6 +326,7 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes) } num_bytes = ALIGN(num_bytes, fs_info->sectorsize); + disk_num_bytes = ALIGN(disk_num_bytes, fs_info->sectorsize); /* * We always want to do it this way, every other way is wrong and ends @@ -329,9 +338,10 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes) * everything out and try again, which is bad. This way we just * over-reserve slightly, and clean up the mess when we are done. */ - calc_inode_reservations(fs_info, num_bytes, &meta_reserve, - &qgroup_reserve); - ret = btrfs_qgroup_reserve_meta_prealloc(root, qgroup_reserve, true); + calc_inode_reservations(fs_info, num_bytes, disk_num_bytes, + &meta_reserve, &qgroup_reserve); + ret = btrfs_qgroup_reserve_meta_prealloc(root, qgroup_reserve, true, + noflush); if (ret) return ret; ret = btrfs_reserve_metadata_bytes(fs_info, block_rsv, meta_reserve, flush); @@ -347,9 +357,9 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes) * needs to free the reservation we just made. */ spin_lock(&inode->lock); - nr_extents = count_max_extents(num_bytes); + nr_extents = count_max_extents(fs_info, num_bytes); btrfs_mod_outstanding_extents(inode, nr_extents); - inode->csum_bytes += num_bytes; + inode->csum_bytes += disk_num_bytes; btrfs_calculate_inode_block_rsv_size(fs_info, inode); spin_unlock(&inode->lock); @@ -410,7 +420,7 @@ void btrfs_delalloc_release_extents(struct btrfs_inode *inode, u64 num_bytes) unsigned num_extents; spin_lock(&inode->lock); - num_extents = count_max_extents(num_bytes); + num_extents = count_max_extents(fs_info, num_bytes); btrfs_mod_outstanding_extents(inode, -num_extents); btrfs_calculate_inode_block_rsv_size(fs_info, inode); spin_unlock(&inode->lock); @@ -451,10 +461,10 @@ int btrfs_delalloc_reserve_space(struct btrfs_inode *inode, { int ret; - ret = btrfs_check_data_free_space(inode, reserved, start, len); + ret = btrfs_check_data_free_space(inode, reserved, start, len, false); if (ret < 0) return ret; - ret = btrfs_delalloc_reserve_metadata(inode, len); + ret = btrfs_delalloc_reserve_metadata(inode, len, len, false); if (ret < 0) { btrfs_free_reserved_data_space(inode, *reserved, start, len); extent_changeset_free(*reserved); |