Messages in this thread | | | Date | Wed, 17 Feb 2021 13:22:05 -0800 | From | Minchan Kim <> | Subject | Re: [RFC 1/2] mm: disable LRU pagevec during the migration temporarily |
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On Wed, Feb 17, 2021 at 09:11:43PM +0000, Matthew Wilcox wrote: > On Wed, Feb 17, 2021 at 12:51:25PM -0800, Minchan Kim wrote: > > I'd like to avoid atomic operation if we could. > > Why do you think that the spinlock is better? >
Michal suggested atomic_inc in writeside and atomic_read in readside. I wanted to avoid atomic operation in readside path.
You are suggesting atomic for writeside and just read(not atomic_read) in readside?
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