Merge tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

[firefly-linux-kernel-4.4.55.git] / fs / buffer.c

diff --git a/fs/buffer.c b/fs/buffer.c
index 838a9cf246bd0fa561ab66295f9bb3df77e0c6a2..c7062c896d7c20489f41ea838640a5cfa5387ca9 100644 (file)
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1036,6 +1036,9 @@ grow_buffers(struct block_device *bdev, sector_t block, int size)
 static struct buffer_head *
 __getblk_slow(struct block_device *bdev, sector_t block, int size)
 {
+       int ret;
+       struct buffer_head *bh;
+
        /* Size must be multiple of hard sectorsize */
        if (unlikely(size & (bdev_logical_block_size(bdev)-1) ||
                        (size < 512 || size > PAGE_SIZE))) {
@@ -1048,20 +1051,21 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size)
                return NULL;
        }
 
-       for (;;) {
-               struct buffer_head * bh;
-               int ret;
+retry:
+       bh = __find_get_block(bdev, block, size);
+       if (bh)
+               return bh;
 
+       ret = grow_buffers(bdev, block, size);
+       if (ret == 0) {
+               free_more_memory();
+               goto retry;
+       } else if (ret > 0) {
                bh = __find_get_block(bdev, block, size);
                if (bh)
                        return bh;
-
-               ret = grow_buffers(bdev, block, size);
-               if (ret < 0)
-                       return NULL;
-               if (ret == 0)
-                       free_more_memory();
        }
+       return NULL;
 }
 
 /*