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ITER_PIPE: clean pipe_advance() up
authorAl Viro <viro@zeniv.linux.org.uk>
Wed, 15 Jun 2022 20:03:25 +0000 (16:03 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Tue, 9 Aug 2022 02:37:18 +0000 (22:37 -0400)
commit2c855de93314e9573f31044976ffd89cb70a2dbd
tree1cec98a604162a4b3f752d0c15dc1f67d11dcd9c
parentca591967543ab1af7e6e68bd505ef7869d3f2175
ITER_PIPE: clean pipe_advance() up

instead of setting ->iov_offset for new position and calling
pipe_truncate() to adjust ->len of the last buffer and discard
everything after it, adjust ->len at the same time we set ->iov_offset
and use pipe_discard_from() to deal with buffers past that.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
lib/iov_iter.c