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Btrfs: Don't allow releasepage to succeed if EXTENT_ORDERED is set 

Signed-off-by: Chris Mason <chris.mason@oracle.com>
wifi-calibration
Chris Mason 2008-07-18 11:56:15 -04:00
parent 3edf7d33f4
commit 211f90e68b
2 changed files with 11 additions and 6 deletions
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3
fs/btrfs/extent_io.c
View File

@ -2542,7 +2542,8 @@ int try_release_extent_state(struct extent_map_tree *map,
u64 end = start + PAGE_CACHE_SIZE - 1;
int ret = 1;
if (test_range_bit(tree, start, end, EXTENT_IOBITS, 0))
if (test_range_bit(tree, start, end,
EXTENT_IOBITS | EXTENT_ORDERED, 0))
ret = 0;
else {
if ((mask & GFP_NOFS) == GFP_NOFS)

14
fs/btrfs/inode.c
View File

@ -477,10 +477,8 @@ printk("queueing worker to fixup page %lu %Lu\n", inode->i_ino, page_offset(page
return -EAGAIN;
}
int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate)
static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
{
struct inode *inode = page->mapping->host;
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
struct btrfs_ordered_extent *ordered_extent;
@ -550,6 +548,12 @@ int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
return 0;
}
int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
struct extent_state *state, int uptodate)
{
return btrfs_finish_ordered_io(page->mapping->host, start, end);
}
int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
{
int ret = 0;
@ -2663,8 +2667,8 @@ static void btrfs_invalidatepage(struct page *page, unsigned long offset)
clear_extent_bit(tree, page_start, page_end,
EXTENT_DIRTY | EXTENT_DELALLOC |
EXTENT_LOCKED, 1, 0, GFP_NOFS);
btrfs_writepage_end_io_hook(page, page_start,
page_end, NULL, 1);
btrfs_finish_ordered_io(page->mapping->host,
page_start, page_end);
btrfs_put_ordered_extent(ordered);
lock_extent(tree, page_start, page_end, GFP_NOFS);
}