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Btrfs: make delalloc inodes be flushed by multi-task

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This patch introduce a new worker pool named "flush_workers", and if we
want to force all the inode with pending delalloc to the disks, we can
queue those inodes into the work queue of the worker pool, in this way,
those inodes will be flushed by multi-task.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
This commit is contained in:
Miao Xie
2012-10-25 09:28:04 +00:00
committed by Josef Bacik
parent 7b398f8e58
commit 8ccf6f19b6
5 changed files with 103 additions and 8 deletions
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7
fs/btrfs/disk-io.c
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@@ -2279,6 +2279,10 @@ int open_ctree(struct super_block *sb,
fs_info->thread_pool_size,
&fs_info->generic_worker);
btrfs_init_workers(&fs_info->flush_workers, "flush_delalloc",
fs_info->thread_pool_size,
&fs_info->generic_worker);
btrfs_init_workers(&fs_info->submit_workers, "submit",
min_t(u64, fs_devices->num_devices,
fs_info->thread_pool_size),
@@ -2350,6 +2354,7 @@ int open_ctree(struct super_block *sb,
ret |= btrfs_start_workers(&fs_info->delayed_workers);
ret |= btrfs_start_workers(&fs_info->caching_workers);
ret |= btrfs_start_workers(&fs_info->readahead_workers);
ret |= btrfs_start_workers(&fs_info->flush_workers);
if (ret) {
err = -ENOMEM;
goto fail_sb_buffer;
@@ -2667,6 +2672,7 @@ fail_sb_buffer:
btrfs_stop_workers(&fs_info->submit_workers);
btrfs_stop_workers(&fs_info->delayed_workers);
btrfs_stop_workers(&fs_info->caching_workers);
btrfs_stop_workers(&fs_info->flush_workers);
fail_alloc:
fail_iput:
btrfs_mapping_tree_free(&fs_info->mapping_tree);
@@ -3339,6 +3345,7 @@ int close_ctree(struct btrfs_root *root)
btrfs_stop_workers(&fs_info->delayed_workers);
btrfs_stop_workers(&fs_info->caching_workers);
btrfs_stop_workers(&fs_info->readahead_workers);
btrfs_stop_workers(&fs_info->flush_workers);
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
if (btrfs_test_opt(root, CHECK_INTEGRITY))