From 2c7eaa43c3bb7b3b9fe2051d17f308c1f0728c78 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 15 Jun 2009 22:16:10 +0200 Subject: ide: BUG() on unknown requests Unsupported requests should be never handed down to device drivers and the best thing we can do upon discovering such request inside driver's ->do_request method is to just BUG(). Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-disk.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers/ide/ide-disk.c') diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 6a1de2169709..695181120cdb 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -184,14 +184,7 @@ static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq, ide_hwif_t *hwif = drive->hwif; BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED); - - if (!blk_fs_request(rq)) { - blk_dump_rq_flags(rq, "ide_do_rw_disk - bad command"); - if (rq->errors == 0) - rq->errors = -EIO; - ide_complete_rq(drive, -EIO, ide_rq_bytes(rq)); - return ide_stopped; - } + BUG_ON(!blk_fs_request(rq)); ledtrig_ide_activity(); -- cgit v1.2.3 From bc146d23d1358af43f03793c3ad8c9f16bbcffcb Mon Sep 17 00:00:00 2001 From: Maxime Bizon Date: Thu, 16 Jul 2009 06:32:52 +0000 Subject: ide: fix memory leak when flush command is issued I'm using ide on 2.6.30.1 with xfs filesystem. I noticed a kernel memory leak after writing lots of data, the kmalloc-96 slab cache keeps growing. It seems the struct ide_cmd kmalloced by idedisk_prepare_flush is never kfreed. Commit a09485df9cda49fbde2766c86eb18a9cae585162 ("ide: move request type specific code from ide_end_drive_cmd() to callers (v3)") and f505d49ffd25ed062e76ffd17568d3937fcd338c ("ide: fix barriers support") cause this regression, cmd->rq must now be set for ide_complete_cmd to honor the IDE_TFLAG_DYN flag. Signed-off-by: Maxime Bizon Acked-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/ide-disk.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/ide/ide-disk.c') diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index 695181120cdb..7f878017b736 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -455,6 +455,7 @@ static void idedisk_prepare_flush(struct request_queue *q, struct request *rq) rq->cmd_type = REQ_TYPE_ATA_TASKFILE; rq->special = cmd; + cmd->rq = rq; } ide_devset_get(multcount, mult_count); -- cgit v1.2.3