lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 7 Dec 2007 12:48:06 -0500 From: "Ed L. Cashin" <ecashin@...aid.com> To: linux-kernel@...r.kernel.org Cc: "Ed L. Cashin" <ecashin@...aid.com>, Greg KH <greg@...ah.com> Subject: [PATCH 08/13] only install new AoE device once An aoe driver user who had about 70 AoE targets found that he was hitting a BUG in sysfs_create_file because the aoe driver was trying to tell the kernel about an AoE device more than once. Each AoE device was reachable by several local network interfaces, and multiple ATA device indentify responses were returning from that single device. This patch eliminates a race condition so that aoe always informs the block layer of a new AoE device once in the presence of multiple incoming ATA device identify responses. Signed-off-by: Ed L. Cashin <ecashin@...aid.com> --- drivers/block/aoe/aoecmd.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index b49e06e..7a96183 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -698,6 +698,8 @@ ataid_complete(struct aoedev *d, struct aoetgt *t, unsigned char *id) d->fw_ver, (long long)ssize); d->ssize = ssize; d->geo.start = 0; + if (d->flags & (DEVFL_GDALLOC|DEVFL_NEWSIZE)) + return; if (d->gd != NULL) { d->gd->capacity = ssize; d->flags |= DEVFL_NEWSIZE; -- 1.5.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists