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Btrfs: Enable delalloc accounting 

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2008-01-31 11:05:37 -05:00
parent 0181e58f91
commit b0c68f8bed
4 changed files with 26 additions and 14 deletions
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4
fs/btrfs/disk-io.c
View File

@ -861,6 +861,10 @@ int close_ctree(struct btrfs_root *root)
write_ctree_super(NULL, root); write_ctree_super(NULL, root);
mutex_unlock(&fs_info->fs_mutex); mutex_unlock(&fs_info->fs_mutex);
if (fs_info->delalloc_bytes) {
printk("btrfs: at unmount delalloc count %Lu\n",
fs_info->delalloc_bytes);
}
if (fs_info->extent_root->node) if (fs_info->extent_root->node)
free_extent_buffer(fs_info->extent_root->node); free_extent_buffer(fs_info->extent_root->node);

14
fs/btrfs/extent_io.c
View File

@ -262,7 +262,7 @@ static void set_state_cb(struct extent_io_tree *tree,
{ {
if (tree->ops && tree->ops->set_bit_hook) { if (tree->ops && tree->ops->set_bit_hook) {
tree->ops->set_bit_hook(tree->mapping->host, state->start, tree->ops->set_bit_hook(tree->mapping->host, state->start,
state->end, bits); state->end, state->state, bits);
} }
} }
@ -272,7 +272,7 @@ static void clear_state_cb(struct extent_io_tree *tree,
{ {
if (tree->ops && tree->ops->set_bit_hook) { if (tree->ops && tree->ops->set_bit_hook) {
tree->ops->clear_bit_hook(tree->mapping->host, state->start, tree->ops->clear_bit_hook(tree->mapping->host, state->start,
state->end, bits); state->end, state->state, bits);
} }
} }
@ -298,10 +298,10 @@ static int insert_state(struct extent_io_tree *tree,
} }
if (bits & EXTENT_DIRTY) if (bits & EXTENT_DIRTY)
tree->dirty_bytes += end - start + 1; tree->dirty_bytes += end - start + 1;
set_state_cb(tree, state, bits);
state->state |= bits; state->state |= bits;
state->start = start; state->start = start;
state->end = end; state->end = end;
set_state_cb(tree, state, bits);
node = tree_insert(&tree->state, end, &state->rb_node); node = tree_insert(&tree->state, end, &state->rb_node);
if (node) { if (node) {
struct extent_state *found; struct extent_state *found;
@ -369,8 +369,8 @@ static int clear_state_bit(struct extent_io_tree *tree,
WARN_ON(range > tree->dirty_bytes); WARN_ON(range > tree->dirty_bytes);
tree->dirty_bytes -= range; tree->dirty_bytes -= range;
} }
state->state &= ~bits;
clear_state_cb(tree, state, bits); clear_state_cb(tree, state, bits);
state->state &= ~bits;
if (wake) if (wake)
wake_up(&state->wq); wake_up(&state->wq);
if (delete || state->state == 0) { if (delete || state->state == 0) {
@ -574,8 +574,8 @@ static void set_state_bits(struct extent_io_tree *tree,
u64 range = state->end - state->start + 1; u64 range = state->end - state->start + 1;
tree->dirty_bytes += range; tree->dirty_bytes += range;
} }
state->state |= bits;
set_state_cb(tree, state, bits); set_state_cb(tree, state, bits);
state->state |= bits;
} }
/* /*
@ -997,8 +997,8 @@ search_again:
free_extent_state(state); free_extent_state(state);
goto search_again; goto search_again;
} }
state->state |= EXTENT_LOCKED;
set_state_cb(tree, state, EXTENT_LOCKED); set_state_cb(tree, state, EXTENT_LOCKED);
state->state |= EXTENT_LOCKED;
if (!found) if (!found)
*start = state->start; *start = state->start;
found++; found++;
@ -1497,8 +1497,8 @@ static int end_bio_extent_readpage(struct bio *bio,
} else { } else {
state = NULL; state = NULL;
} }
clear->state |= EXTENT_UPTODATE;
set_state_cb(tree, clear, EXTENT_UPTODATE); set_state_cb(tree, clear, EXTENT_UPTODATE);
clear->state |= EXTENT_UPTODATE;
clear_state_bit(tree, clear, EXTENT_LOCKED, clear_state_bit(tree, clear, EXTENT_LOCKED,
1, 0); 1, 0);
if (cur == start) if (cur == start)

4
fs/btrfs/extent_io.h
View File

@ -34,9 +34,9 @@ struct extent_io_ops {
void (*writepage_end_io_hook)(struct page *page, u64 start, u64 end, void (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
struct extent_state *state); struct extent_state *state);
int (*set_bit_hook)(struct inode *inode, u64 start, u64 end, int (*set_bit_hook)(struct inode *inode, u64 start, u64 end,
unsigned long bits); unsigned long old, unsigned long bits);
int (*clear_bit_hook)(struct inode *inode, u64 start, u64 end, int (*clear_bit_hook)(struct inode *inode, u64 start, u64 end,
unsigned long bits); unsigned long old, unsigned long bits);
}; };
struct extent_io_tree { struct extent_io_tree {

18
fs/btrfs/inode.c
View File

@ -260,9 +260,9 @@ static int run_delalloc_range(struct inode *inode, u64 start, u64 end)
} }
int btrfs_set_bit_hook(struct inode *inode, u64 start, u64 end, int btrfs_set_bit_hook(struct inode *inode, u64 start, u64 end,
unsigned long bits) unsigned long old, unsigned long bits)
{ {
if ((bits & EXTENT_DELALLOC)) { if (!(old & EXTENT_DELALLOC) && (bits & EXTENT_DELALLOC)) {
struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_root *root = BTRFS_I(inode)->root;
spin_lock(&root->fs_info->delalloc_lock); spin_lock(&root->fs_info->delalloc_lock);
root->fs_info->delalloc_bytes += end - start + 1; root->fs_info->delalloc_bytes += end - start + 1;
@ -272,12 +272,18 @@ int btrfs_set_bit_hook(struct inode *inode, u64 start, u64 end,
} }
int btrfs_clear_bit_hook(struct inode *inode, u64 start, u64 end, int btrfs_clear_bit_hook(struct inode *inode, u64 start, u64 end,
unsigned long bits) unsigned long old, unsigned long bits)
{ {
if ((bits & EXTENT_DELALLOC)) { if ((old & EXTENT_DELALLOC) && (bits & EXTENT_DELALLOC)) {
struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_root *root = BTRFS_I(inode)->root;
spin_lock(&root->fs_info->delalloc_lock); spin_lock(&root->fs_info->delalloc_lock);
root->fs_info->delalloc_bytes -= end - start + 1; if (end - start + 1 > root->fs_info->delalloc_bytes) {
printk("warning: delalloc account %Lu %Lu\n",
end - start + 1, root->fs_info->delalloc_bytes);
root->fs_info->delalloc_bytes = 0;
} else {
root->fs_info->delalloc_bytes -= end - start + 1;
}
spin_unlock(&root->fs_info->delalloc_lock); spin_unlock(&root->fs_info->delalloc_lock);
} }
return 0; return 0;
@ -3002,6 +3008,8 @@ static struct extent_io_ops btrfs_extent_io_ops = {
.writepage_io_hook = btrfs_writepage_io_hook, .writepage_io_hook = btrfs_writepage_io_hook,
.readpage_io_hook = btrfs_readpage_io_hook, .readpage_io_hook = btrfs_readpage_io_hook,
.readpage_end_io_hook = btrfs_readpage_end_io_hook, .readpage_end_io_hook = btrfs_readpage_end_io_hook,
.set_bit_hook = btrfs_set_bit_hook,
.clear_bit_hook = btrfs_clear_bit_hook,
}; };
static struct address_space_operations btrfs_aops = { static struct address_space_operations btrfs_aops = {