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-rw-r--r--fs/btrfs/btrfs_inode.h2
-rw-r--r--fs/btrfs/ctree.h4
-rw-r--r--fs/btrfs/disk-io.c1
-rw-r--r--fs/btrfs/extent-tree.c12
-rw-r--r--fs/btrfs/file.c3
-rw-r--r--fs/btrfs/inode.c47
-rw-r--r--fs/btrfs/ioctl.c4
7 files changed, 60 insertions, 13 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index df624fd..534ac41 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -42,6 +42,8 @@ struct btrfs_inode {
/* for keeping track of orphaned inodes */
struct list_head i_orphan;
+ struct list_head delalloc_inodes;
+
/*
* transid of the trans_handle that last modified this inode
*/
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 62499dd..116aee2 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -551,6 +551,7 @@ struct btrfs_fs_info {
*/
spinlock_t ordered_extent_lock;
struct list_head ordered_extents;
+ struct list_head delalloc_inodes;
/*
* there is a pool of worker threads for checksumming during writes
@@ -637,6 +638,7 @@ struct btrfs_root {
struct kobject root_kobj;
struct completion kobj_unregister;
struct mutex objectid_mutex;
+
u64 objectid;
u64 last_trans;
@@ -1651,6 +1653,8 @@ int btrfs_csum_truncate(struct btrfs_trans_handle *trans,
#define PageChecked PageFsMisc
#endif
+int btrfs_start_delalloc_inodes(struct btrfs_root *root);
+int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end);
int btrfs_writepages(struct address_space *mapping,
struct writeback_control *wbc);
int btrfs_create_subvol_root(struct btrfs_root *new_root,
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index da9dda4..7654368 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1234,6 +1234,7 @@ struct btrfs_root *open_ctree(struct super_block *sb,
INIT_LIST_HEAD(&fs_info->trans_list);
INIT_LIST_HEAD(&fs_info->dead_roots);
INIT_LIST_HEAD(&fs_info->hashers);
+ INIT_LIST_HEAD(&fs_info->delalloc_inodes);
spin_lock_init(&fs_info->hash_lock);
spin_lock_init(&fs_info->delalloc_lock);
spin_lock_init(&fs_info->new_trans_lock);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index dbde128..33cb2ac 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1230,7 +1230,6 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags,
found->total_bytes += total_bytes;
found->bytes_used += bytes_used;
found->full = 0;
- WARN_ON(found->total_bytes < found->bytes_used);
*space_info = found;
return 0;
}
@@ -2841,8 +2840,7 @@ again:
*/
clear_page_dirty_for_io(page);
- set_extent_delalloc(io_tree, page_start,
- page_end, GFP_NOFS);
+ btrfs_set_extent_delalloc(inode, page_start, page_end);
set_page_dirty(page);
unlock_extent(io_tree, page_start, page_end, GFP_NOFS);
@@ -3319,6 +3317,13 @@ again:
key.type = 0;
cur_byte = key.objectid;
+ mutex_unlock(&root->fs_info->alloc_mutex);
+
+ btrfs_start_delalloc_inodes(root);
+ btrfs_wait_ordered_extents(tree_root);
+
+ mutex_lock(&root->fs_info->alloc_mutex);
+
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
if (ret < 0)
goto out;
@@ -3401,6 +3406,7 @@ next:
btrfs_clean_old_snapshots(tree_root);
+ btrfs_start_delalloc_inodes(root);
btrfs_wait_ordered_extents(tree_root);
trans = btrfs_start_transaction(tree_root, 1);
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 8915f2d..eb8e455 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -312,8 +312,7 @@ static int noinline dirty_and_release_pages(struct btrfs_trans_handle *trans,
* to reset the delalloc bit on things that already have
* extents reserved.
*/
- set_extent_delalloc(io_tree, start_pos,
- end_of_last_block, GFP_NOFS);
+ btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block);
for (i = 0; i < num_pages; i++) {
struct page *p = pages[i];
SetPageUptodate(p);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 640648c..8a405a5 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -303,6 +303,10 @@ int btrfs_set_bit_hook(struct inode *inode, u64 start, u64 end,
spin_lock_irqsave(&root->fs_info->delalloc_lock, flags);
BTRFS_I(inode)->delalloc_bytes += end - start + 1;
root->fs_info->delalloc_bytes += end - start + 1;
+ if (list_empty(&BTRFS_I(inode)->delalloc_inodes)) {
+ list_add_tail(&BTRFS_I(inode)->delalloc_inodes,
+ &root->fs_info->delalloc_inodes);
+ }
spin_unlock_irqrestore(&root->fs_info->delalloc_lock, flags);
}
return 0;
@@ -325,6 +329,10 @@ int btrfs_clear_bit_hook(struct inode *inode, u64 start, u64 end,
root->fs_info->delalloc_bytes -= end - start + 1;
BTRFS_I(inode)->delalloc_bytes -= end - start + 1;
}
+ if (BTRFS_I(inode)->delalloc_bytes == 0 &&
+ !list_empty(&BTRFS_I(inode)->delalloc_inodes)) {
+ list_del_init(&BTRFS_I(inode)->delalloc_inodes);
+ }
spin_unlock_irqrestore(&root->fs_info->delalloc_lock, flags);
}
return 0;
@@ -408,6 +416,12 @@ static noinline int add_pending_csums(struct btrfs_trans_handle *trans,
return 0;
}
+int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end)
+{
+ return set_extent_delalloc(&BTRFS_I(inode)->io_tree, start, end,
+ GFP_NOFS);
+}
+
struct btrfs_writepage_fixup {
struct page *page;
struct btrfs_work work;
@@ -453,8 +467,7 @@ again:
goto again;
}
- set_extent_delalloc(&BTRFS_I(inode)->io_tree, page_start, page_end,
- GFP_NOFS);
+ btrfs_set_extent_delalloc(inode, page_start, page_end);
ClearPageChecked(page);
out:
unlock_extent(&BTRFS_I(inode)->io_tree, page_start, page_end, GFP_NOFS);
@@ -1530,8 +1543,7 @@ again:
goto again;
}
- set_extent_delalloc(&BTRFS_I(inode)->io_tree, page_start,
- page_end, GFP_NOFS);
+ btrfs_set_extent_delalloc(inode, page_start, page_end);
ret = 0;
if (offset != PAGE_CACHE_SIZE) {
kaddr = kmap(page);
@@ -1766,6 +1778,7 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p)
inode->i_mapping, GFP_NOFS);
extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
inode->i_mapping, GFP_NOFS);
+ INIT_LIST_HEAD(&BTRFS_I(inode)->delalloc_inodes);
btrfs_ordered_inode_tree_init(&BTRFS_I(inode)->ordered_tree);
mutex_init(&BTRFS_I(inode)->csum_mutex);
mutex_init(&BTRFS_I(inode)->extent_mutex);
@@ -2158,6 +2171,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
inode->i_mapping, GFP_NOFS);
btrfs_ordered_inode_tree_init(&BTRFS_I(inode)->ordered_tree);
+ INIT_LIST_HEAD(&BTRFS_I(inode)->delalloc_inodes);
mutex_init(&BTRFS_I(inode)->csum_mutex);
mutex_init(&BTRFS_I(inode)->extent_mutex);
BTRFS_I(inode)->delalloc_bytes = 0;
@@ -2400,6 +2414,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
inode->i_mapping, GFP_NOFS);
extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
inode->i_mapping, GFP_NOFS);
+ INIT_LIST_HEAD(&BTRFS_I(inode)->delalloc_inodes);
mutex_init(&BTRFS_I(inode)->csum_mutex);
mutex_init(&BTRFS_I(inode)->extent_mutex);
BTRFS_I(inode)->delalloc_bytes = 0;
@@ -3049,8 +3064,7 @@ again:
goto again;
}
- set_extent_delalloc(&BTRFS_I(inode)->io_tree, page_start,
- page_end, GFP_NOFS);
+ btrfs_set_extent_delalloc(inode, page_start, page_end);
ret = 0;
/* page is wholly or partially inside EOF */
@@ -3373,6 +3387,26 @@ out_unlock:
return ret;
}
+int btrfs_start_delalloc_inodes(struct btrfs_root *root)
+{
+ struct list_head *head = &root->fs_info->delalloc_inodes;
+ struct btrfs_inode *binode;
+ unsigned long flags;
+
+ spin_lock_irqsave(&root->fs_info->delalloc_lock, flags);
+ while(!list_empty(head)) {
+ binode = list_entry(head->next, struct btrfs_inode,
+ delalloc_inodes);
+ atomic_inc(&binode->vfs_inode.i_count);
+ spin_unlock_irqrestore(&root->fs_info->delalloc_lock, flags);
+ filemap_write_and_wait(binode->vfs_inode.i_mapping);
+ iput(&binode->vfs_inode);
+ spin_lock_irqsave(&root->fs_info->delalloc_lock, flags);
+ }
+ spin_unlock_irqrestore(&root->fs_info->delalloc_lock, flags);
+ return 0;
+}
+
static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
const char *symname)
{
@@ -3436,6 +3470,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
inode->i_mapping, GFP_NOFS);
extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
inode->i_mapping, GFP_NOFS);
+ INIT_LIST_HEAD(&BTRFS_I(inode)->delalloc_inodes);
mutex_init(&BTRFS_I(inode)->csum_mutex);
mutex_init(&BTRFS_I(inode)->extent_mutex);
BTRFS_I(inode)->delalloc_bytes = 0;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0b63c3c..e1046a5 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -274,8 +274,7 @@ again:
*/
clear_page_dirty_for_io(page);
- set_extent_delalloc(io_tree, page_start,
- page_end, GFP_NOFS);
+ btrfs_set_extent_delalloc(inode, page_start, page_end);
unlock_extent(io_tree, page_start, page_end, GFP_NOFS);
set_page_dirty(page);
@@ -784,6 +783,7 @@ long btrfs_ioctl(struct file *file, unsigned int
case BTRFS_IOC_TRANS_END:
return btrfs_ioctl_trans_end(file);
case BTRFS_IOC_SYNC:
+ btrfs_start_delalloc_inodes(root);
btrfs_sync_fs(file->f_dentry->d_sb, 1);
return 0;
}
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