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Diffstat (limited to 'fs/buffer.c')
-rw-r--r--fs/buffer.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 7ff6e9346fa..a4b824234fb 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1440,6 +1440,7 @@ static void discard_buffer(struct buffer_head * bh)
clear_buffer_req(bh);
clear_buffer_new(bh);
clear_buffer_delay(bh);
+ clear_buffer_unwritten(bh);
unlock_buffer(bh);
}
@@ -1823,6 +1824,7 @@ static int __block_prepare_write(struct inode *inode, struct page *page,
continue;
}
if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
+ !buffer_unwritten(bh) &&
(block_start < from || block_end > to)) {
ll_rw_block(READ, 1, &bh);
*wait_bh++=bh;
@@ -2544,7 +2546,7 @@ int block_truncate_page(struct address_space *mapping,
if (PageUptodate(page))
set_buffer_uptodate(bh);
- if (!buffer_uptodate(bh) && !buffer_delay(bh)) {
+ if (!buffer_uptodate(bh) && !buffer_delay(bh) && !buffer_unwritten(bh)) {
err = -EIO;
ll_rw_block(READ, 1, &bh);
wait_on_buffer(bh);