[PATCH] fs: Reset fully_mapped more accurately

[Liu Xiang]

Because get_block() might set the buffer mapped, reset fully_mapped
after it is more accurately.

Signed-off-by: Liu Xiang <liu.xia...@zte.com.cn>
---
 fs/buffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/buffer.c b/fs/buffer.c
index 52d024b..b2e9167 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2241,7 +2241,6 @@ int block_read_full_page(struct page *page, get_block_t 
*get_block)
                if (!buffer_mapped(bh)) {
                        int err = 0;
 
-                       fully_mapped = 0;
                        if (iblock < lblock) {
                                WARN_ON(bh->b_size != blocksize);
                                err = get_block(inode, iblock, bh, 0);
@@ -2249,6 +2248,7 @@ int block_read_full_page(struct page *page, get_block_t 
*get_block)
                                        SetPageError(page);
                        }
                        if (!buffer_mapped(bh)) {
+                               fully_mapped = 0;
                                zero_user(page, i * blocksize, blocksize);
                                if (!err)
                                        set_buffer_uptodate(bh);
-- 
1.9.1