hugetlb: pass *next_nid_to_alloc directly to for_each_node_mask_to_alloc
authorGang Li <gang.li@linux.dev>
Thu, 22 Feb 2024 14:04:16 +0000 (22:04 +0800)
committerAndrew Morton <akpm@linux-foundation.org>
Wed, 6 Mar 2024 21:04:17 +0000 (13:04 -0800)
commit2e73ff236e09bd2c91c91fd5c84804503b7ea90a
treee09210779d011c17a7c26061dd09963fc93f2709
parentd5c3eb3f5026aece935afca3cbe8f9fea113844c
hugetlb: pass *next_nid_to_alloc directly to for_each_node_mask_to_alloc

With parallelization of hugetlb allocation across different threads, each
thread works on a differnet node to allocate pages from, instead of all
allocating from a common node h->next_nid_to_alloc.  To address this, it's
necessary to assign a separate next_nid_to_alloc for each thread.

Consequently, the hstate_next_node_to_alloc and
for_each_node_mask_to_alloc have been modified to directly accept a
*next_nid_to_alloc parameter, ensuring thread-specific allocation and
avoiding concurrent access issues.

Link: https://lkml.kernel.org/r/20240222140422.393911-4-gang.li@linux.dev
Signed-off-by: Gang Li <ligang.bdlg@bytedance.com>
Tested-by: David Rientjes <rientjes@google.com>
Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
mm/hugetlb.c