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authorPaul Jackson <pj@sgi.com>2006-01-08 04:02:01 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 23:13:44 -0500
commitc417f0242ebe578924a30d4e53d35b5059fed4e7 (patch)
tree3058c7c79aedb11e7013f5faca34eb07e9a761bd /include/linux/cpuset.h
parent04c19fa6f16047abff2288ddbc1f0798ede5a849 (diff)
[PATCH] cpuset: remove test for null cpuset from alloc code path
Remove a couple of more lines of code from the cpuset hooks in the page allocation code path. There was a check for a NULL cpuset pointer in the routine cpuset_update_task_memory_state() that was only needed during system boot, after the memory subsystem was initialized, before the cpuset subsystem was initialized, to catch a NULL task->cpuset pointer. Add a cpuset_init_early() routine, just before the mem_init() call in init/main.c, that sets up just enough of the init tasks cpuset structure to render cpuset_update_task_memory_state() calls harmless. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/cpuset.h')
-rw-r--r--include/linux/cpuset.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 34081c168af5..c472f972bd6d 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -16,6 +16,7 @@
16 16
17extern int number_of_cpusets; /* How many cpusets are defined in system? */ 17extern int number_of_cpusets; /* How many cpusets are defined in system? */
18 18
19extern int cpuset_init_early(void);
19extern int cpuset_init(void); 20extern int cpuset_init(void);
20extern void cpuset_init_smp(void); 21extern void cpuset_init_smp(void);
21extern void cpuset_fork(struct task_struct *p); 22extern void cpuset_fork(struct task_struct *p);
@@ -49,6 +50,7 @@ extern char *cpuset_task_status_allowed(struct task_struct *task, char *buffer);
49 50
50#else /* !CONFIG_CPUSETS */ 51#else /* !CONFIG_CPUSETS */
51 52
53static inline int cpuset_init_early(void) { return 0; }
52static inline int cpuset_init(void) { return 0; } 54static inline int cpuset_init(void) { return 0; }
53static inline void cpuset_init_smp(void) {} 55static inline void cpuset_init_smp(void) {}
54static inline void cpuset_fork(struct task_struct *p) {} 56static inline void cpuset_fork(struct task_struct *p) {}