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-rw-r--r--fs/btrfs/ctree.h14
-rw-r--r--fs/btrfs/disk-io.c7
-rw-r--r--fs/btrfs/inode.c78
-rw-r--r--fs/btrfs/relocation.c6
-rw-r--r--fs/btrfs/transaction.c6
5 files changed, 103 insertions, 8 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 8fd9fe4282f5..cad16566da37 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1333,6 +1333,7 @@ struct btrfs_fs_info {
struct btrfs_workers generic_worker;
struct btrfs_workers workers;
struct btrfs_workers delalloc_workers;
+ struct btrfs_workers flush_workers;
struct btrfs_workers endio_workers;
struct btrfs_workers endio_meta_workers;
struct btrfs_workers endio_meta_write_workers;
@@ -3277,6 +3278,19 @@ int btrfs_csum_truncate(struct btrfs_trans_handle *trans,
int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
struct list_head *list, int search_commit);
/* inode.c */
+struct btrfs_delalloc_work {
+ struct inode *inode;
+ int wait;
+ int delay_iput;
+ struct completion completion;
+ struct list_head list;
+ struct btrfs_work work;
+};
+
+struct btrfs_delalloc_work *btrfs_alloc_delalloc_work(struct inode *inode,
+ int wait, int delay_iput);
+void btrfs_wait_and_free_delalloc_work(struct btrfs_delalloc_work *work);
+
struct extent_map *btrfs_get_extent_fiemap(struct inode *inode, struct page *page,
size_t pg_offset, u64 start, u64 len,
int create);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 7cda51995c1e..bd70c2852ba0 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -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))
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index db3dd4ed057f..dce9e218b845 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -71,6 +71,7 @@ static const struct file_operations btrfs_dir_file_operations;
static struct extent_io_ops btrfs_extent_io_ops;
static struct kmem_cache *btrfs_inode_cachep;
+static struct kmem_cache *btrfs_delalloc_work_cachep;
struct kmem_cache *btrfs_trans_handle_cachep;
struct kmem_cache *btrfs_transaction_cachep;
struct kmem_cache *btrfs_path_cachep;
@@ -7204,6 +7205,8 @@ void btrfs_destroy_cachep(void)
kmem_cache_destroy(btrfs_path_cachep);
if (btrfs_free_space_cachep)
kmem_cache_destroy(btrfs_free_space_cachep);
+ if (btrfs_delalloc_work_cachep)
+ kmem_cache_destroy(btrfs_delalloc_work_cachep);
}
int btrfs_init_cachep(void)
@@ -7238,6 +7241,13 @@ int btrfs_init_cachep(void)
if (!btrfs_free_space_cachep)
goto fail;
+ btrfs_delalloc_work_cachep = kmem_cache_create("btrfs_delalloc_work",
+ sizeof(struct btrfs_delalloc_work), 0,
+ SLAB_RECLAIM_ACCOUNT | SLAB_MEM_SPREAD,
+ NULL);
+ if (!btrfs_delalloc_work_cachep)
+ goto fail;
+
return 0;
fail:
btrfs_destroy_cachep();
@@ -7448,6 +7458,49 @@ out_notrans:
return ret;
}
+static void btrfs_run_delalloc_work(struct btrfs_work *work)
+{
+ struct btrfs_delalloc_work *delalloc_work;
+
+ delalloc_work = container_of(work, struct btrfs_delalloc_work,
+ work);
+ if (delalloc_work->wait)
+ btrfs_wait_ordered_range(delalloc_work->inode, 0, (u64)-1);
+ else
+ filemap_flush(delalloc_work->inode->i_mapping);
+
+ if (delalloc_work->delay_iput)
+ btrfs_add_delayed_iput(delalloc_work->inode);
+ else
+ iput(delalloc_work->inode);
+ complete(&delalloc_work->completion);
+}
+
+struct btrfs_delalloc_work *btrfs_alloc_delalloc_work(struct inode *inode,
+ int wait, int delay_iput)
+{
+ struct btrfs_delalloc_work *work;
+
+ work = kmem_cache_zalloc(btrfs_delalloc_work_cachep, GFP_NOFS);
+ if (!work)
+ return NULL;
+
+ init_completion(&work->completion);
+ INIT_LIST_HEAD(&work->list);
+ work->inode = inode;
+ work->wait = wait;
+ work->delay_iput = delay_iput;
+ work->work.func = btrfs_run_delalloc_work;
+
+ return work;
+}
+
+void btrfs_wait_and_free_delalloc_work(struct btrfs_delalloc_work *work)
+{
+ wait_for_completion(&work->completion);
+ kmem_cache_free(btrfs_delalloc_work_cachep, work);
+}
+
/*
* some fairly slow code that needs optimization. This walks the list
* of all the inodes with pending delalloc and forces them to disk.
@@ -7457,10 +7510,15 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
struct list_head *head = &root->fs_info->delalloc_inodes;
struct btrfs_inode *binode;
struct inode *inode;
+ struct btrfs_delalloc_work *work, *next;
+ struct list_head works;
+ int ret = 0;
if (root->fs_info->sb->s_flags & MS_RDONLY)
return -EROFS;
+ INIT_LIST_HEAD(&works);
+
spin_lock(&root->fs_info->delalloc_lock);
while (!list_empty(head)) {
binode = list_entry(head->next, struct btrfs_inode,
@@ -7470,11 +7528,14 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
list_del_init(&binode->delalloc_inodes);
spin_unlock(&root->fs_info->delalloc_lock);
if (inode) {
- filemap_flush(inode->i_mapping);
- if (delay_iput)
- btrfs_add_delayed_iput(inode);
- else
- iput(inode);
+ work = btrfs_alloc_delalloc_work(inode, 0, delay_iput);
+ if (!work) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ list_add_tail(&work->list, &works);
+ btrfs_queue_worker(&root->fs_info->flush_workers,
+ &work->work);
}
cond_resched();
spin_lock(&root->fs_info->delalloc_lock);
@@ -7493,7 +7554,12 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
atomic_read(&root->fs_info->async_delalloc_pages) == 0));
}
atomic_dec(&root->fs_info->async_submit_draining);
- return 0;
+out:
+ list_for_each_entry_safe(work, next, &works, list) {
+ list_del_init(&work->list);
+ btrfs_wait_and_free_delalloc_work(work);
+ }
+ return ret;
}
static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 242d6de4d8eb..270f24ffe1be 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4061,7 +4061,11 @@ int btrfs_relocate_block_group(struct btrfs_root *extent_root, u64 group_start)
(unsigned long long)rc->block_group->key.objectid,
(unsigned long long)rc->block_group->flags);
- btrfs_start_delalloc_inodes(fs_info->tree_root, 0);
+ ret = btrfs_start_delalloc_inodes(fs_info->tree_root, 0);
+ if (ret < 0) {
+ err = ret;
+ goto out;
+ }
btrfs_wait_ordered_extents(fs_info->tree_root, 0);
while (1) {
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 4e1def4c06b1..9c466f9f8175 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1497,7 +1497,11 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
WARN_ON(cur_trans != trans->transaction);
if (flush_on_commit || snap_pending) {
- btrfs_start_delalloc_inodes(root, 1);
+ ret = btrfs_start_delalloc_inodes(root, 1);
+ if (ret) {
+ btrfs_abort_transaction(trans, root, ret);
+ goto cleanup_transaction;
+ }
btrfs_wait_ordered_extents(root, 1);
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-10 16:45:27 +0000