Date: Tue, 13 Sep 2005 17:46:48 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/fs/fifofs fifo_vnops.c Message-ID: <200509131746.j8DHkmVU071792@repoman.freebsd.org>
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rwatson 2005-09-13 17:46:48 UTC
FreeBSD src repository
Modified files:
sys/fs/fifofs fifo_vnops.c
Log:
Trim down now (believed to be) unused fifo_ioctl() and
fifo_kqfilter() VOP implementations, since they in theory are used
only on open file descriptors, in which case the ioctls are via
fifo_ioctl_f() and kqueue requests are via fifo_kqfilter_f().
Generate warnings if they are entered for now. These printf()
calls should become panic() calls.
Annotate and re-implement fifo_ioctl_f(): don't arbitrarily
forward ioctls to the socket layer, only forward the ones we
explicitly support for fifos. In the case of FIONREAD, don't
forward the request to the write socket on a read-write fifo, or
the read result is overwritten. Annotate a nasty case for the
undefined POSIX O_RDWR on fifos, in which failure of the second
ioctl will result in the socket pair being in an inconsistent
state.
Assert copyright as I find myself rewriting non-trivial parts of
fifofs.
MFC after: 3 days
Revision Changes Path
1.124 +75 -65 src/sys/fs/fifofs/fifo_vnops.c
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