Btrfs: Fix releasepage to properly keep dirty and writeback pages
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 42bf991..ecb74b7 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -346,7 +346,7 @@
eb = alloc_extent_buffer(tree, start, len, page, GFP_NOFS);
found_start = btrfs_header_bytenr(eb);
- if (found_start != start) {
+ if (0 && found_start != start) {
printk("bad tree block start %llu %llu\n",
(unsigned long long)found_start,
(unsigned long long)eb->start);
@@ -592,6 +592,9 @@
struct extent_map_tree *map;
int ret;
+ if (PageWriteback(page) || PageDirty(page))
+ return 0;
+
tree = &BTRFS_I(page->mapping->host)->io_tree;
map = &BTRFS_I(page->mapping->host)->extent_tree;