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From: Steve French <smfrench@austin.rr.com>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: duplicate entry check in kmem_cache_create
Date: Wed, 18 Jun 2003 18:08:05 -0500	[thread overview]
Message-ID: <3EF0F0D5.5030504@austin.rr.com> (raw)

Is there a recommended way to check to see if a slab cache with
a specific name exists before calling kmem_cache_create?

I was able to force it into the BUG() at about line 1160 of slab.c by 
removing my
module (rmmod -f) while some of my slab cache objects (e.g. private inode
info) were still in use, and then reloading my module which called
kmem_cache_create with a name that already existed.   I would
like to exit module init code with a more graceful error if I  
could easily detect that my slab cache objects were not deleted  
(since if I proceed farther in my module init code it will hit the  
BUG statement on 1160 of slab.c)

Any easy way to check? 


             reply	other threads:[~2003-06-18 22:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-18 23:08 Steve French [this message]
2003-06-18 23:46 ` duplicate entry check in kmem_cache_create Andrew Morton
2003-06-19  0:08   ` Steve French

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