]> rtime.felk.cvut.cz Git - lisovros/linux_canprio.git/commit
Export 'get_pipe_info()' to other users
authorLinus Torvalds <torvalds@linux-foundation.org>
Sun, 28 Nov 2010 22:09:57 +0000 (14:09 -0800)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 9 Dec 2010 21:33:36 +0000 (13:33 -0800)
commitde6b16236165008032ee3ed7db24b9ad9600e0eb
tree2a43a1586cd31961543123debf68e0e5e6ca6164
parent68fadbe6fcf982e8c14865082b0d09c939baf8db
Export 'get_pipe_info()' to other users

commit c66fb347946ebdd5b10908866ecc9fa05ee2cf3d upstream.

And in particular, use it in 'pipe_fcntl()'.

The other pipe functions do not need to use the 'careful' version, since
they are only ever called for things that are already known to be pipes.

The normal read/write/ioctl functions are called through the file
operations structures, so if a file isn't a pipe, they'd never get
called.  But pipe_fcntl() is special, and called directly from the
generic fcntl code, and needs to use the same careful function that the
splice code is using.

Cc: Jens Axboe <jaxboe@fusionio.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
fs/pipe.c
fs/splice.c
include/linux/pipe_fs_i.h