From 2cb2e147a6d20bffd1d6b7a79be7301560f751c3 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 17 Jan 2006 09:04:32 +0100 Subject: [PATCH] [BLOCK] ll_rw_blk: make max_sectors and max_hw_sectors unsigned ints IDE lba48 can support full 64k request size, which overflows the max_hw_sectors variable. Signed-off-by: Jens Axboe --- block/ll_rw_blk.c | 2 +- include/linux/blkdev.h | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 8e27d0ab0d7c..5c62507a510d 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -662,7 +662,7 @@ EXPORT_SYMBOL(blk_queue_bounce_limit); * Enables a low level driver to set an upper limit on the size of * received requests. **/ -void blk_queue_max_sectors(request_queue_t *q, unsigned short max_sectors) +void blk_queue_max_sectors(request_queue_t *q, unsigned int max_sectors) { if ((max_sectors << 9) < PAGE_CACHE_SIZE) { max_sectors = 1 << (PAGE_CACHE_SHIFT - 9); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 02a585faa62c..860e7a485a5f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -392,8 +392,8 @@ struct request_queue unsigned int nr_congestion_off; unsigned int nr_batching; - unsigned short max_sectors; - unsigned short max_hw_sectors; + unsigned int max_sectors; + unsigned int max_hw_sectors; unsigned short max_phys_segments; unsigned short max_hw_segments; unsigned short hardsect_size; @@ -697,7 +697,7 @@ extern request_queue_t *blk_init_queue(request_fn_proc *, spinlock_t *); extern void blk_cleanup_queue(request_queue_t *); extern void blk_queue_make_request(request_queue_t *, make_request_fn *); extern void blk_queue_bounce_limit(request_queue_t *, u64); -extern void blk_queue_max_sectors(request_queue_t *, unsigned short); +extern void blk_queue_max_sectors(request_queue_t *, unsigned int); extern void blk_queue_max_phys_segments(request_queue_t *, unsigned short); extern void blk_queue_max_hw_segments(request_queue_t *, unsigned short); extern void blk_queue_max_segment_size(request_queue_t *, unsigned int); -- 2.20.1