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authorZach Brown <zab@redhat.com>2013-10-16 12:10:33 -0700
committerChris Mason <chris.mason@fusionio.com>2013-11-11 22:03:09 -0500
commit1877e1a747db33d7264d8046e96373962da72a3d (patch)
treeb928d5a17bacd6644631d200e3a82232202b2aec /fs/btrfs/compression.c
parent4546bcaeba435c1d0b7f38c011cbb2367497ca8d (diff)
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btrfs: remove move_pages()
move_pages() has an inefficient backwards byte copy of regions of two different pages. They're different pages so the regions won't overlap and it could use memcpy(). At that point, though, move_pages() would be a slightly dimmer re-implementation of copy_pages() that lacked the test for overlapping page regions. So remove move_pages() and just call copy_pages(). Signed-off-by: Zach Brown <zab@redhat.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/compression.c')
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