commit 475ecade683566b19ebb84972de864039ac5fce3
author Hugh Dickins <hugh@veritas.com> Thu Jun 07 09:36:00 2007 +0200
committer Jens Axboe <jens.axboe@oracle.com> Fri Jun 08 08:34:05 2007 +0200
tree cd2043c6c951c440988be8057380dfaab1ceb481
parent 20d698db67059a63d217030dfd02872cb5f88dfb

splice: __generic_file_splice_read: fix i_size_read() length checks

__generic_file_splice_read's partial page check, at eof after readpage,
not only got its calculations wrong, but also reused the loff variable:
causing data corruption when splicing from a non-0 offset in the file's
last page (revealed by ext2 -b 1024 testing on a loop of a tmpfs file).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>