splice: remove detritus from generic_file_splice_read()
authorAl Viro <viro@zeniv.linux.org.uk>
Thu, 10 Nov 2016 23:32:13 +0000 (18:32 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Thu, 10 Nov 2016 23:32:13 +0000 (18:32 -0500)
commite519e7774784f3fa7728657d780863805ed1c983
tree57ed4eac0972a837383976c451fe76a3003bce0f
parent6d6d36bc6e77f8b1f86d81884ad5149931bb4acd
splice: remove detritus from generic_file_splice_read()

i_size check is a leftover from the horrors that used to play with
the page cache in that function.  With the switch to ->read_iter(),
it's neither needed nor correct - for gfs2 it ends up being buggy,
since i_size is not guaranteed to be correct until later (inside
->read_iter()).

Spotted-by: Abhi Das <adas@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/splice.c