From: Li RongQing <lirongqing@baidu.com>
To: hughd@google.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: [PATCH] mm: remove VM_ACCT(PAGE_SIZE) when charge and uncharge
Date: Thu, 17 Oct 2019 19:32:31 +0800 [thread overview]
Message-ID: <1571311951-8524-1-git-send-email-lirongqing@baidu.com> (raw)
VM_ACCT(PAGE_SIZE) is one, and it is unnecessary to multiply by it
Signed-off-by: Li RongQing <lirongqing@baidu.com>
---
mm/shmem.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index cd570cc79c76..f01df46ef2ff 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -202,14 +202,13 @@ static inline int shmem_acct_block(unsigned long flags, long pages)
if (!(flags & VM_NORESERVE))
return 0;
- return security_vm_enough_memory_mm(current->mm,
- pages * VM_ACCT(PAGE_SIZE));
+ return security_vm_enough_memory_mm(current->mm, pages);
}
static inline void shmem_unacct_blocks(unsigned long flags, long pages)
{
if (flags & VM_NORESERVE)
- vm_unacct_memory(pages * VM_ACCT(PAGE_SIZE));
+ vm_unacct_memory(pages);
}
static inline bool shmem_inode_acct_block(struct inode *inode, long pages)
--
2.16.2
reply other threads:[~2019-10-17 11:32 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=1571311951-8524-1-git-send-email-lirongqing@baidu.com \
--to=lirongqing@baidu.com \
--cc=hughd@google.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/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