From: Pengfei Li <lpf.vector@gmail.com>
To: akpm@linux-foundation.org, peterz@infradead.org, urezki@gmail.com
Cc: rpenyaev@suse.de, mhocko@suse.com, guro@fb.com,
aryabinin@virtuozzo.com, rppt@linux.ibm.com, mingo@kernel.org,
rick.p.edgecombe@intel.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Pengfei Li <lpf.vector@gmail.com>
Subject: [PATCH v3 0/1] mm/vmalloc.c: improve readability and rewrite vmap_area
Date: Thu, 4 Jul 2019 21:30:39 +0800 [thread overview]
Message-ID: <20190704133040.5623-1-lpf.vector@gmail.com> (raw)
v2 -> v3:
* patch 1-4: Abandoned
* patch 5:
- Eliminate "flags" (suggested by Uladzislau Rezki)
- Based on https://lkml.org/lkml/2019/6/6/455
and https://lkml.org/lkml/2019/7/3/661
v1 -> v2:
* patch 3: Rename __find_vmap_area to __search_va_in_busy_tree
instead of __search_va_from_busy_tree.
* patch 5: Add motivation and necessary test data to the commit
message.
* patch 5: Let va->flags use only some low bits of va_start
instead of completely overwriting va_start.
The current implementation of struct vmap_area wasted space.
After applying this commit, sizeof(struct vmap_area) has been
reduced from 11 words to 8 words.
Pengfei Li (1):
Modify struct vmap_area to reduce its size
include/linux/vmalloc.h | 20 +++++++++++++-------
mm/vmalloc.c | 24 ++++++++++--------------
2 files changed, 23 insertions(+), 21 deletions(-)
--
2.21.0
next reply other threads:[~2019-07-04 13:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-04 13:30 Pengfei Li [this message]
2019-07-04 13:30 ` [PATCH v3 1/1] Modify struct vmap_area to reduce its size Pengfei Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190704133040.5623-1-lpf.vector@gmail.com \
--to=lpf.vector@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=aryabinin@virtuozzo.com \
--cc=guro@fb.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mhocko@suse.com \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=rick.p.edgecombe@intel.com \
--cc=rpenyaev@suse.de \
--cc=rppt@linux.ibm.com \
--cc=urezki@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).