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authorJesper Juhl <juhl-lkml@dif.dk>2005-06-23 00:09:07 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-23 09:45:19 -0700
commitdcd497f99a1ef29a7c5e76142965be77e9dacabd (patch)
tree684d64753c6cd71917cf3c360023dd273be376b4 /include/asm-x86_64
parent35a82d1a53e1a9ad54efafcc940f9335beaed5c3 (diff)
downloadlinux-dcd497f99a1ef29a7c5e76142965be77e9dacabd.tar.gz
[PATCH] streamline preempt_count type across archs
The preempt_count member of struct thread_info is currently either defined as int, unsigned int or __s32 depending on arch. This patch makes the type of preempt_count an int on all archs. Having preempt_count be an unsigned type prevents the catching of preempt_count < 0 bugs, and using int on some archs and __s32 on others is not exactely "neat" - much nicer when it's just int all over. A previous version of this patch was already ACK'ed by Robert Love, and the only change in this version of the patch compared to the one he ACK'ed is that this one also makes sure the preempt_count member is consistently commented. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-x86_64')
-rw-r--r--include/asm-x86_64/thread_info.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-x86_64/thread_info.h b/include/asm-x86_64/thread_info.h
index f4b3b249639..08eb6e4f373 100644
--- a/include/asm-x86_64/thread_info.h
+++ b/include/asm-x86_64/thread_info.h
@@ -29,7 +29,7 @@ struct thread_info {
__u32 flags; /* low level flags */
__u32 status; /* thread synchronous flags */
__u32 cpu; /* current CPU */
- int preempt_count;
+ int preempt_count; /* 0 => preemptable, <0 => BUG */
mm_segment_t addr_limit;
struct restart_block restart_block;