]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] kprobes: changed from using spinlock to mutex
authorAnil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Tue, 10 Jan 2006 04:52:43 +0000 (20:52 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 10 Jan 2006 16:01:40 +0000 (08:01 -0800)
commit49a2a1b83ba6fa40c41968d6a28ba16e7ed0c3f7
treef257b535d0f09f9ac2531d40feb732349993665c
parent41dead49ccb4d7f0a34d56478f487342a3c3ab2b
[PATCH] kprobes: changed from using spinlock to mutex

Since Kprobes runtime exception handlers is now lock free as this code path is
now using RCU to walk through the list, there is no need for the
register/unregister{_kprobe} to use spin_{lock/unlock}_isr{save/restore}.  The
serialization during registration/unregistration is now possible using just a
mutex.

In the above process, this patch also fixes a minor memory leak for x86_64 and
powerpc.

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/i386/kernel/kprobes.c
arch/powerpc/kernel/kprobes.c
arch/sparc64/kernel/kprobes.c
arch/x86_64/kernel/kprobes.c
include/asm-ia64/kprobes.h
include/linux/kprobes.h
kernel/kprobes.c