tree 5863ad70f5cdccba0c1cd28f83d173deaf71fb83
parent 016b661e2f717168e600f3c85f29e1a49f88e004
author Jens Axboe <axboe@suse.de> 1146041961 +0200
committer Jens Axboe <axboe@suse.de> 1146041961 +0200

[PATCH] Add support for the sys_vmsplice syscall

sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice()
moves data to a pipe, with the input being a user address range instead.

This uses an approach suggested by Linus, where we can hold partial ranges
inside the pages[] map. Hopefully this will be useful for network
receive support as well.

Signed-off-by: Jens Axboe <axboe@suse.de>