diff options
| author | Paul Jackson <pj@sgi.com> | 2006-01-08 10:01:47 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-09 05:13:42 +0100 |
| commit | 5966514db662fb24c9bb43226a80106bcffd51f8 (patch) | |
| tree | 9c6d8f4f6fee0d6574de7e225141d37b28811dc3 | |
| parent | [PATCH] cpuset: better bitmap remap defaults (diff) | |
| download | linux-5966514db662fb24c9bb43226a80106bcffd51f8.tar.xz linux-5966514db662fb24c9bb43226a80106bcffd51f8.zip | |
[PATCH] cpuset: mempolicy one more nodemask conversion
Finish converting mm/mempolicy.c from bitmaps to nodemasks. The previous
conversion had left one routine using bitmaps, since it involved a
corresponding change to kernel/cpuset.c
Fix that interface by replacing with a simple macro that calls nodes_subset(),
or if !CONFIG_CPUSET, returns (1).
Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: Christoph Lameter <christoph@lameter.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/linux/cpuset.h | 5 | ||||
| -rw-r--r-- | kernel/cpuset.c | 10 | ||||
| -rw-r--r-- | mm/mempolicy.c | 5 |
3 files changed, 5 insertions, 15 deletions
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 6e2deef96b34..8b21786490ee 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -21,7 +21,8 @@ extern void cpuset_exit(struct task_struct *p); extern cpumask_t cpuset_cpus_allowed(const struct task_struct *p); void cpuset_init_current_mems_allowed(void); void cpuset_update_current_mems_allowed(void); -void cpuset_restrict_to_mems_allowed(unsigned long *nodes); +#define cpuset_nodes_subset_current_mems_allowed(nodes) \ + nodes_subset((nodes), current->mems_allowed) int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl); extern int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask); extern int cpuset_excl_nodes_overlap(const struct task_struct *p); @@ -42,7 +43,7 @@ static inline cpumask_t cpuset_cpus_allowed(struct task_struct *p) static inline void cpuset_init_current_mems_allowed(void) {} static inline void cpuset_update_current_mems_allowed(void) {} -static inline void cpuset_restrict_to_mems_allowed(unsigned long *nodes) {} +#define cpuset_nodes_subset_current_mems_allowed(nodes) (1) static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl) { diff --git a/kernel/cpuset.c b/kernel/cpuset.c index f63383e01ec7..6503c6da4c4f 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -1750,16 +1750,6 @@ done: } /** - * cpuset_restrict_to_mems_allowed - limit nodes to current mems_allowed - * @nodes: pointer to a node bitmap that is and-ed with mems_allowed - */ -void cpuset_restrict_to_mems_allowed(unsigned long *nodes) -{ - bitmap_and(nodes, nodes, nodes_addr(current->mems_allowed), - MAX_NUMNODES); -} - -/** * cpuset_zonelist_valid_mems_allowed - check zonelist vs. curremt mems_allowed * @zl: the zonelist to be checked * diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 7051fe450e96..9dea2b8a7d48 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -387,10 +387,9 @@ static int contextualize_policy(int mode, nodemask_t *nodes) if (!nodes) return 0; - /* Update current mems_allowed */ cpuset_update_current_mems_allowed(); - /* Ignore nodes not set in current->mems_allowed */ - cpuset_restrict_to_mems_allowed(nodes->bits); + if (!cpuset_nodes_subset_current_mems_allowed(*nodes)) + return -EINVAL; return mpol_check_policy(mode, nodes); } |