lkml.org 
[lkml]   [2019]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v3 0/4] mm, slab: Make kmalloc_info[] contain all types of names
Date
Changes in v3
--
1. restore __initconst (patch 1/4)
2. rename patch 3/4
3. add more clarification for patch 4/4

Changes in v2
--
1. remove __initconst (patch 1/5)
2. squash patch 2/5
3. add ack tag from Vlastimil Babka


There are three types of kmalloc, KMALLOC_NORMAL, KMALLOC_RECLAIM
and KMALLOC_DMA.

The name of KMALLOC_NORMAL is contained in kmalloc_info[].name,
but the names of KMALLOC_RECLAIM and KMALLOC_DMA are dynamically
generated by kmalloc_cache_name().

Patch1 predefines the names of all types of kmalloc to save
the time spent dynamically generating names.

The other 4 patches did some cleanup work.

These changes make sense, and the time spent by new_kmalloc_cache()
has been reduced by approximately 36.3%.

Time spent by
new_kmalloc_cache()
5.3-rc7 66264
5.3-rc7+patch 42188


Pengfei Li (4):
mm, slab: Make kmalloc_info[] contain all types of names
mm, slab: Remove unused kmalloc_size()
mm, slab_common: use enum kmalloc_cache_type to iterate over kmalloc
caches
mm, slab_common: Make the loop for initializing KMALLOC_DMA start from
1

include/linux/slab.h | 20 ---------
mm/slab.c | 7 +--
mm/slab.h | 2 +-
mm/slab_common.c | 101 +++++++++++++++++++++++--------------------
4 files changed, 59 insertions(+), 71 deletions(-)

--
2.21.0

\
 
 \ /
  Last update: 2019-09-10 03:27    [W:0.056 / U:12.432 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site