Subject: + idr-reduce-the-unneeded-check-in-free_layer.patch added to -mm tree To: laijs@xxxxxxxxxxxxxx,tj@xxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Tue, 22 Apr 2014 12:40:48 -0700 The patch titled Subject: idr: reduce the unneeded check in free_layer() has been added to the -mm tree. Its filename is idr-reduce-the-unneeded-check-in-free_layer.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/idr-reduce-the-unneeded-check-in-free_layer.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/idr-reduce-the-unneeded-check-in-free_layer.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Lai Jiangshan <laijs@xxxxxxxxxxxxxx> Subject: idr: reduce the unneeded check in free_layer() If "idr->hint == p" is true, it also implies "idr->hint" is true(not NULL). Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx> Acked-by: Tejun Heo <tj@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/idr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN lib/idr.c~idr-reduce-the-unneeded-check-in-free_layer lib/idr.c --- a/lib/idr.c~idr-reduce-the-unneeded-check-in-free_layer +++ a/lib/idr.c @@ -145,7 +145,7 @@ static void idr_layer_rcu_free(struct rc static inline void free_layer(struct idr *idr, struct idr_layer *p) { - if (idr->hint && idr->hint == p) + if (idr->hint == p) RCU_INIT_POINTER(idr->hint, NULL); call_rcu(&p->rcu_head, idr_layer_rcu_free); } _ Patches currently in -mm which might be from laijs@xxxxxxxxxxxxxx are mem-hotplug-implement-get-put_online_mems.patch slab-get_online_mems-for-kmem_cache_createdestroyshrink.patch idr-fix-overflow-bug-during-maximum-id-calculation-at-maximum-height.patch idr-fix-unexpected-id-removal-when-idr_removeunallocated_id.patch idr-fix-null-pointer-dereference-when-ida_removeunallocated_id.patch idr-fix-idr_replaces-returned-error-code.patch idr-dont-need-to-shink-the-free-list-when-idr_remove.patch idr-reduce-the-unneeded-check-in-free_layer.patch linux-next.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