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authorAl Viro <viro@zeniv.linux.org.uk>2014-02-03 17:07:03 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-04-01 23:19:21 -0400
commit6e58e79db8a16222b31fc8da1ca2ac2dccfc4237 (patch)
tree3babba99823f4f723a119a7ed61372baed4786bc /COPYING
parent9223687863ffa63fa655f52ef64148ee08dee4d1 (diff)
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introduce copy_page_to_iter, kill loop over iovec in generic_file_aio_read()
generic_file_aio_read() was looping over the target iovec, with loop over (source) pages nested inside that. Just set an iov_iter up and pass *that* to do_generic_file_aio_read(). With copy_page_to_iter() doing all work of mapping and copying a page to iovec and advancing iov_iter. Switch shmem_file_aio_read() to the same and kill file_read_actor(), while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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