unicore32: turn flush_dcache_mmap_lock into a no-op
authorMatthew Wilcox <mawilcox@microsoft.com>
Tue, 10 Apr 2018 23:36:40 +0000 (16:36 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 11 Apr 2018 17:28:39 +0000 (10:28 -0700)
commitd339d705f7024d602b1449e36e53451a0fcde9fa
tree31757c3dadddd549adb1f45df7f8fdc181184532
parent427c896f262ad70d1e6b04890945675df13bb031
unicore32: turn flush_dcache_mmap_lock into a no-op

Unicore doesn't walk the VMA tree in its flush_dcache_page()
implementation, so has no need to take the tree_lock.

Link: http://lkml.kernel.org/r/20180313132639.17387-5-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/unicore32/include/asm/cacheflush.h