ide: fix memory leak when flush command is issued
commitbc146d23d1358af43f03793c3ad8c9f16bbcffcb
authorMaxime Bizon <mbizon@freebox.fr>
Thu, 16 Jul 2009 06:32:52 +0000 (16 06:32 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 22 Jul 2009 03:23:46 +0000 (21 20:23 -0700)
tree0cf3c27204af9c991476a0ce5c0911d8c03c1b35
parent3503e0acbfab0dbcd24ccadd5fe841f3f8290e81
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 <mbizon@freebox.fr>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/ide/ide-disk.c