The patch titled cpuset: remove unneeded NODEMASK_ALLOC() in cpuset_attach() has been removed from the -mm tree. Its filename was cpuset-remove-unneeded-nodemask_alloc-in-cpuset_attch.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: cpuset: remove unneeded NODEMASK_ALLOC() in cpuset_attach() From: Li Zefan <lizf@xxxxxxxxxxxxxx> oldcs->mems_allowed is not modified during cpuset_attach(), so we don't have to copy it to a buffer allocated by NODEMASK_ALLOC(). Just pass it to cpuset_migrate_mm(). Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx> Cc: Paul Menage <menage@xxxxxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx> Cc: Miao Xie <miaox@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/cpuset.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff -puN kernel/cpuset.c~cpuset-remove-unneeded-nodemask_alloc-in-cpuset_attch kernel/cpuset.c --- a/kernel/cpuset.c~cpuset-remove-unneeded-nodemask_alloc-in-cpuset_attch +++ a/kernel/cpuset.c @@ -1438,10 +1438,9 @@ static void cpuset_attach(struct cgroup_ struct mm_struct *mm; struct cpuset *cs = cgroup_cs(cont); struct cpuset *oldcs = cgroup_cs(oldcont); - NODEMASK_ALLOC(nodemask_t, from, GFP_KERNEL); NODEMASK_ALLOC(nodemask_t, to, GFP_KERNEL); - if (from == NULL || to == NULL) + if (to == NULL) goto alloc_fail; if (cs == &top_cpuset) { @@ -1463,18 +1462,16 @@ static void cpuset_attach(struct cgroup_ } /* change mm; only needs to be done once even if threadgroup */ - *from = oldcs->mems_allowed; *to = cs->mems_allowed; mm = get_task_mm(tsk); if (mm) { mpol_rebind_mm(mm, to); if (is_memory_migrate(cs)) - cpuset_migrate_mm(mm, from, to); + cpuset_migrate_mm(mm, &oldcs->mems_allowed, to); mmput(mm); } alloc_fail: - NODEMASK_FREE(from); NODEMASK_FREE(to); } _ Patches currently in -mm which might be from lizf@xxxxxxxxxxxxxx are origin.patch cgroup-remove-the-ns_cgroup.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html