Commit Graph

9 Commits

Author SHA1 Message Date
Konstantin Belousov
526d0bd547 Fix found places where uio_resid is truncated to int.
Add the sysctl debug.iosize_max_clamp, enabled by default. Setting the
sysctl to zero allows to perform the SSIZE_MAX-sized i/o requests from
the usermode.

Discussed with:	bde, das (previous versions)
MFC after:	1 month
2012-02-21 01:05:12 +00:00
Andriy Gapon
f6ce353e58 replace uses of libkern gets with cngets
MFC after:	2 months
2011-12-17 15:26:34 +00:00
Marcel Moolenaar
421b7fe574 Don't terminate the interactive root mount prompt on mount failure.
This restores the previous behaviour. While here, match '?' and '.'
inputs exactly and improve the error message.

Requested by: avg@
Derived from a patch by: Arnaud Lacombe <lacombar@gmail.com>
2011-10-23 20:03:33 +00:00
Andrey V. Elsukov
fef7c585de Include sys/sbuf.h directly. 2011-07-11 05:17:46 +00:00
Nathan Whitehorn
083cfea1ee Make RB_CDROM work. This should probably check for a disc in cd1 and acd1
as well.
2011-01-08 19:50:13 +00:00
Ed Schouten
eb4c31fd41 Add support for asterisk characters when filling in the GELI password
during boot.

Change the last argument of gets() to indicate a visibility flag and add
definitions for the numerical constants. Except for the value 2, gets()
will behave exactly the same, so existing consumers shouldn't break. We
only use it in two places, though.

Submitted by:	lme (older version)
2010-11-14 14:12:43 +00:00
Andrey V. Elsukov
366523d101 ZFS pool name is not a real device in devfs. Do not wait for
device appear when mounting root from ZFS.

Reviewed by:	marcel
Approved by:	mav (mentor)
2010-10-19 18:32:01 +00:00
Marcel Moolenaar
e25daafbb6 Re-implement the root mount logic using a recursive approach, whereby each
root file system (starting with devfs and a synthesized configuration) can
contain directives for mounting another file system as root. The old root
file system is re-mounted under the new root file system (with /.mount or
/mnt as the mount point) to allow access to the underlying file system.

The configuration allows for creating vnode-backed memory disks that can
subsequently be mounted as root. This allows for an efficient and low-
cost way to distribute and boot FreeBSD software images that reside on
some storage media.

When trying a mount, the kernel will wait for the device in question to
arrive. The timeout is configurable and is part of the configuration.
This allows arbitrarily complex GEOM configurations to be constructed
on the fly.

A side-effect of this change is that all root specifications, whether
compiled into the kernel or typed at the prompt can contain root mount
options.
2010-10-18 05:01:53 +00:00
Marcel Moolenaar
24e01f5998 Split the root mount logic from the (generic) mount code and move
it (the root mount code) into a new file called vfs_mountroot.c

The split is almost trivial, as the code is almost perfectly
non-intertwined. The only adjustment needed was to move the UMA
zone allocation out of vfs_mountroot() [in vfs_mountroot.c] and
into vfs_mount.c, where it had to be done as a SYSINIT [see
vfs_mount_init()].

There are no functional changes with this commit.
2010-10-02 19:44:13 +00:00