From: Nitin Gupta <ngupta@xxxxxxxxxx> ramzswap block size needs to be set equal to PAGE_SIZE to avoid receiving any unaligned block I/O requests (happens due to readahead logic during swapon). These unaligned accesses produce unnecessary I/O errors, scaring users. Signed-off-by: Nitin Gupta <ngupta@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx> --- drivers/staging/ramzswap/ramzswap_drv.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/staging/ramzswap/ramzswap_drv.c b/drivers/staging/ramzswap/ramzswap_drv.c index 3567ee3..2021ad6 100644 --- a/drivers/staging/ramzswap/ramzswap_drv.c +++ b/drivers/staging/ramzswap/ramzswap_drv.c @@ -1335,6 +1335,10 @@ static int create_device(struct ramzswap *rzs, int device_id) * or set equal to backing swap device (if provided) */ set_capacity(rzs->disk, 0); + + blk_queue_physical_block_size(rzs->disk->queue, PAGE_SIZE); + blk_queue_logical_block_size(rzs->disk->queue, PAGE_SIZE); + add_disk(rzs->disk); rzs->init_done = 0; -- 1.7.0.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
