Re: [PATCH] mm: convert totalram_pages, totalhigh_pages and managed_pages to atomic.

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On 2018-10-23 09:45, Joe Perches wrote:
On Mon, 2018-10-22 at 22:53 +0530, Arun KS wrote:
Remove managed_page_count_lock spinlock and instead use atomic
variables.


Hello Joe,
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)

That sounds like a nice idea.

Regards,
Arun
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