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-rw-r--r--fs/buffer.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 838a9cf246bd..c7062c896d7c 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1036,6 +1036,9 @@ grow_buffers(struct block_device *bdev, sector_t block, int size)
1036static struct buffer_head * 1036static struct buffer_head *
1037__getblk_slow(struct block_device *bdev, sector_t block, int size) 1037__getblk_slow(struct block_device *bdev, sector_t block, int size)
1038{ 1038{
1039 int ret;
1040 struct buffer_head *bh;
1041
1039 /* Size must be multiple of hard sectorsize */ 1042 /* Size must be multiple of hard sectorsize */
1040 if (unlikely(size & (bdev_logical_block_size(bdev)-1) || 1043 if (unlikely(size & (bdev_logical_block_size(bdev)-1) ||
1041 (size < 512 || size > PAGE_SIZE))) { 1044 (size < 512 || size > PAGE_SIZE))) {
@@ -1048,20 +1051,21 @@ __getblk_slow(struct block_device *bdev, sector_t block, int size)
1048 return NULL; 1051 return NULL;
1049 } 1052 }
1050 1053
1051 for (;;) { 1054retry:
1052 struct buffer_head * bh; 1055 bh = __find_get_block(bdev, block, size);
1053 int ret; 1056 if (bh)
1057 return bh;
1054 1058
1059 ret = grow_buffers(bdev, block, size);
1060 if (ret == 0) {
1061 free_more_memory();
1062 goto retry;
1063 } else if (ret > 0) {
1055 bh = __find_get_block(bdev, block, size); 1064 bh = __find_get_block(bdev, block, size);
1056 if (bh) 1065 if (bh)
1057 return bh; 1066 return bh;
1058
1059 ret = grow_buffers(bdev, block, size);
1060 if (ret < 0)
1061 return NULL;
1062 if (ret == 0)
1063 free_more_memory();
1064 } 1067 }
1068 return NULL;
1065} 1069}
1066 1070
1067/* 1071/*