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| author | Nikanth Karthikesan <knikanth@suse.de> | 2009-04-27 14:53:54 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2009-04-28 07:37:37 +0200 |
| commit | 9eb55b030c4b3227334ee4482402096cd1d1a6fe (patch) | |
| tree | e6c5c6e31692c715b911b18474ef6e4c627723bd /block | |
| parent | block: include discard requests in IO accounting (diff) | |
| download | linux-9eb55b030c4b3227334ee4482402096cd1d1a6fe.tar.xz linux-9eb55b030c4b3227334ee4482402096cd1d1a6fe.zip | |
block: catch trying to use more bits than request->cmd_flags has
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-core.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 1e3b97f0ae6e..394c5bd81271 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -2097,6 +2097,9 @@ EXPORT_SYMBOL(kblockd_schedule_work); int __init blk_dev_init(void) { + BUILD_BUG_ON(__REQ_NR_BITS > 8 * + sizeof(((struct request *)0)->cmd_flags)); + kblockd_workqueue = create_workqueue("kblockd"); if (!kblockd_workqueue) panic("Failed to create kblockd\n"); |