[PATCH] md/bitmap:If bmap() failed,free buffers must check bitmap->pending_writes == 0.
flat view
STALE5251d
From: majianpeng <hidden>
Date: 2012-05-18 11:38:34
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: majianpeng <redacted> --- drivers/md/bitmap.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 17e2b47..74540d7 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c@@ -376,6 +376,8 @@ static struct page *read_page(struct file *file, unsigned long index, bh->b_blocknr = bmap(inode, block); if (bh->b_blocknr == 0) { /* Cannot use this file! */ + wait_event(bitmap->write_wait, + atomic_read(&bitmap->pending_writes) == 0); free_buffers(page); page = ERR_PTR(-EINVAL); goto out;
--
1.7.5.4
--------------
majianpeng
2012-05-18