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Btrfs: Enable delalloc accounting

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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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18
fs/btrfs/inode.c
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@ -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,
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;
spin_lock(&root->fs_info->delalloc_lock);
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,
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;
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);
}
return 0;
@ -3002,6 +3008,8 @@ static struct extent_io_ops btrfs_extent_io_ops = {
.writepage_io_hook = btrfs_writepage_io_hook,
.readpage_io_hook = btrfs_readpage_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 = {