The patch titled Subject: mm-slub-fix-a-deadlock-in-show_slab_objects-fix has been removed from the -mm tree. Its filename was mm-slub-fix-a-deadlock-in-show_slab_objects-fix.patch This patch was dropped because it was folded into mm-slub-fix-a-deadlock-in-show_slab_objects.patch ------------------------------------------------------ From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: mm-slub-fix-a-deadlock-in-show_slab_objects-fix add comment explaining why we don't need mem_hotplug_lock Cc: Christoph Lameter <cl@xxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Pekka Enberg <penberg@xxxxxxxxxx> Cc: Qian Cai <cai@xxxxxx> Cc: Roman Gushchin <guro@xxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/slub.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/mm/slub.c~mm-slub-fix-a-deadlock-in-show_slab_objects-fix +++ a/mm/slub.c @@ -4851,6 +4851,10 @@ static ssize_t show_slab_objects(struct * already held which will conflict with an existing lock order: * * mem_hotplug_lock->slab_mutex->kernfs_mutex + * + * We don't really need mem_hotplug_lock (to hold off + * slab_mem_going_offline_callback) here because slab's memory hot + * unplug code doesn't destroy the kmem_cache->node[] data. */ #ifdef CONFIG_SLUB_DEBUG _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are mm-slub-fix-a-deadlock-in-show_slab_objects.patch ocfs2-protect-extent-tree-in-the-ocfs2_prepare_inode_for_write-checkpatch-fixes.patch mm.patch mm-pgmap-use-correct-alignment-when-looking-at-first-pfn-from-a-region-checkpatch-fixes.patch mm-oom-avoid-printk-iteration-under-rcu-fix.patch hugetlb-remove-duplicated-code-checkpatch-fixes.patch hugetlb-remove-unused-hstate-in-hugetlb_fault_mutex_hash-fix.patch mm-annotate-refault-stalls-from-swap_readpage-fix.patch diff-sucks.patch drivers-block-null_blk_mainc-fix-layout.patch drivers-block-null_blk_mainc-fix-uninitialized-var-warnings.patch drivers-tty-serial-sh-scic-suppress-warning.patch kernel-forkc-export-kernel_thread-to-modules.patch