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authorAl Viro <viro@zeniv.linux.org.uk>2014-02-11 18:37:41 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2014-05-06 17:36:00 -0400
commit293bc9822fa9b3c9d4b7893bcb241e085580771a (patch)
tree89aae8e9d832199906d413dcffd5b885bcee14fe /fs/gfs2
parent7f7f25e82d54870df24d415a7007fbd327da027b (diff)
new methods: ->read_iter() and ->write_iter()
Beginning to introduce those. Just the callers for now, and it's clumsier than it'll eventually become; once we finish converting aio_read and aio_write instances, the things will get nicer. For now, these guys are in parallel to ->aio_read() and ->aio_write(); they take iocb and iov_iter, with everything in iov_iter already validated. File offset is passed in iocb->ki_pos, iov/nr_segs - in iov_iter. Main concerns in that series are stack footprint and ability to split the damn thing cleanly. [fix from Peter Ujfalusi <peter.ujfalusi@ti.com> folded] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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