Btrfs: Don't allow releasepage to succeed if EXTENT_ORDERED is set
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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@ -2542,7 +2542,8 @@ int try_release_extent_state(struct extent_map_tree *map,
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u64 end = start + PAGE_CACHE_SIZE - 1;
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u64 end = start + PAGE_CACHE_SIZE - 1;
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int ret = 1;
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int ret = 1;
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if (test_range_bit(tree, start, end, EXTENT_IOBITS, 0))
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if (test_range_bit(tree, start, end,
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EXTENT_IOBITS | EXTENT_ORDERED, 0))
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ret = 0;
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ret = 0;
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else {
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else {
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if ((mask & GFP_NOFS) == GFP_NOFS)
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if ((mask & GFP_NOFS) == GFP_NOFS)
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@ -477,10 +477,8 @@ printk("queueing worker to fixup page %lu %Lu\n", inode->i_ino, page_offset(page
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return -EAGAIN;
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return -EAGAIN;
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}
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}
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int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
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static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end)
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struct extent_state *state, int uptodate)
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{
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{
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struct inode *inode = page->mapping->host;
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struct btrfs_root *root = BTRFS_I(inode)->root;
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struct btrfs_root *root = BTRFS_I(inode)->root;
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struct btrfs_trans_handle *trans;
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struct btrfs_trans_handle *trans;
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struct btrfs_ordered_extent *ordered_extent;
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struct btrfs_ordered_extent *ordered_extent;
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@ -550,6 +548,12 @@ int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
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return 0;
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return 0;
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}
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}
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int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end,
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struct extent_state *state, int uptodate)
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{
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return btrfs_finish_ordered_io(page->mapping->host, start, end);
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}
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int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
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int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
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{
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{
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int ret = 0;
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int ret = 0;
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@ -2663,8 +2667,8 @@ static void btrfs_invalidatepage(struct page *page, unsigned long offset)
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clear_extent_bit(tree, page_start, page_end,
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clear_extent_bit(tree, page_start, page_end,
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EXTENT_DIRTY | EXTENT_DELALLOC |
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EXTENT_DIRTY | EXTENT_DELALLOC |
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EXTENT_LOCKED, 1, 0, GFP_NOFS);
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EXTENT_LOCKED, 1, 0, GFP_NOFS);
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btrfs_writepage_end_io_hook(page, page_start,
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btrfs_finish_ordered_io(page->mapping->host,
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page_end, NULL, 1);
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page_start, page_end);
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btrfs_put_ordered_extent(ordered);
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btrfs_put_ordered_extent(ordered);
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lock_extent(tree, page_start, page_end, GFP_NOFS);
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lock_extent(tree, page_start, page_end, GFP_NOFS);
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}
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}
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