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s390/dasd: Use ALIGN_DOWN macro

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There is now an ALIGN_DOWN macro available. Let's rather use kernel
provided macros that do the things we want.

Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Jan Höppner
2018-05-29 14:11:25 +02:00
committed by Vasily Gorbik
parent a0610a8ad8
commit b54441534e
1 changed files with 1 additions and 1 deletions
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2
drivers/s390/block/dasd_fba.c
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@@ -794,7 +794,7 @@ static void dasd_fba_setup_blk_queue(struct dasd_block *block)
/* Calculate max_discard_sectors and make it PAGE aligned */
max_bytes = USHRT_MAX * logical_block_size;
max_bytes = ALIGN(max_bytes, PAGE_SIZE) - PAGE_SIZE;
max_bytes = ALIGN_DOWN(max_bytes, PAGE_SIZE);
max_discard_sectors = max_bytes / logical_block_size;
blk_queue_max_discard_sectors(q, max_discard_sectors);