mm/mremap_pages: save a few cycles in get_dev_pagemap()

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Use 'percpu_ref_tryget_live_rcu()' instead of 'percpu_ref_tryget_live()'
to save a few cycles when it is known that the rcu lock is already
taken/released.

Link: https://lkml.kernel.org/r/9ef1562a1975371360f3e263856e9f1c5749b656.1662136782.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Christophe JAILLET 2022-09-02 18:39:52 +02:00 • committed by Andrew Morton

parent 9a157dd8fe

commit e7b72c48d6

1 changed files with 1 additions and 1 deletions

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mm/memremap.c

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