Re: [PATCH] mm: convert totalram_pages, totalhigh_pages and managed_pages to atomic.
From: Joe Perches <joe@perches.com>
Date: 2018-10-23 10:55:57
Also in:
kexec, linux-mediatek, linux-um
On Mon, 2018-10-22 at 22:53 +0530, Arun KS wrote:
Remove managed_page_count_lock spinlock and instead use atomic variables.
Perhaps better to define and use macros for the accesses instead of specific uses of atomic_long_<inc/dec/read> Something like: #define totalram_pages() (unsigned long)atomic_long_read(&_totalram_pages) #define totalram_pages_inc() (unsigned long)atomic_long_inc(&_totalram_pages) #define totalram_pages_dec() (unsigned long)atomic_long_dec(&_totalram_pages)