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(parent: d04ec77) | patch
x86: cpu_init(): fix memory leak when using CPU hotplug
authorAndreas Herrmann <andreas.herrmann3@amd.com>
Wed, 6 Aug 2008 08:29:37 +0000 (10:29 +0200)
committerIngo Molnar <mingo@elte.hu>
Sat, 6 Sep 2008 18:48:16 +0000 (20:48 +0200)
commit23952a96ae738277f3139b63d622e22984589031
tree00e3401cc15bf4220b071a6391228e21e086e68ftree | snapshot
parentd04ec773d7ca1bbc05a2768be95c1cebe2b07757commit | diff
x86: cpu_init(): fix memory leak when using CPU hotplug

Exception stacks are allocated each time a CPU is set online.
But the allocated space is never freed. Thus with one CPU hotplug
offline/online cycle there is a memory leak of 24K (6 pages) for
a CPU.

Fix is to allocate exception stacks only once -- when the CPU is
set online for the first time.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: akpm@linux-foundation.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/cpu/common_64.c diff | blob | history
Domain: System / Uncategorized;