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authorDavid Rientjes <rientjes@google.com>2013-11-13 03:07:28 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 07:09:05 +0400
commit948927ee9e4f35f287e61a79c9f0e85ca2202c7d (patch)
tree611c78ab8b15b7ed1bb1e03791711bfb8f19edf5 /drivers/target/loopback/tcm_loop.c
parent40c3baa7c66f1352521378ee83509fb8f4c465de (diff)
downloadlinux-948927ee9e4f35f287e61a79c9f0e85ca2202c7d.tar.xz
mm, mempolicy: make mpol_to_str robust and always succeed
mpol_to_str() should not fail. Currently, it either fails because the string buffer is too small or because a string hasn't been defined for a mempolicy mode. If a new mempolicy mode is introduced and no string is defined for it, just warn and return "unknown". If the buffer is too small, just truncate the string and return, the same behavior as snprintf(). This also fixes a bug where there was no NULL-byte termination when doing *p++ = '=' and *p++ ':' and maxlen has been reached. Signed-off-by: David Rientjes <rientjes@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Chen Gang <gang.chen@asianux.com> Cc: Rik van Riel <riel@redhat.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/target/loopback/tcm_loop.c')
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