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Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
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Fix headers_check error introduced by 390192b30057:
include/linux/fd.h:6: included file 'linux/compat.h' is not exported
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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On Linux x86_64 host with 32bit userspace, running
qemu or even just "qemu-img create -f qcow2 some.img 1G"
causes a kernel warning:
ioctl32(qemu-img:5296): Unknown cmd fd(3) cmd(00005326){t:'S';sz:0} arg(7fffffff) on some.img
ioctl32(qemu-img:5296): Unknown cmd fd(3) cmd(801c0204){t:02;sz:28} arg(fff77350) on some.img
ioctl 00005326 is CDROM_DRIVE_STATUS,
ioctl 801c0204 is FDGETPRM.
The warning appears because the Linux compat-ioctl handler for these
ioctls only applies to block devices, while qemu also uses the ioctls on
plain files.
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
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The current floppy_struct allows floppies to number sectors starting
from 0 or 1. This patch allows arbitrary first-sector numbers - for
example, 0xC1 for Amstrad CPC disks.
This extends the existing 1-bit field (FD_ZEROBASED, bit 2 of stretch)
to 8 bits (FD_SECTMASK, bits 2 to 9).
Currently 0x00 denotes a first sector number of 1, and 0x01 denotes a
first sector number of 0. We extend this by interpreting FD_SECTMASK
as the first sector number with the LSB flipped.
Signed-off-by: Keith Wansbrough <keith@lochan.org>
Cc: Alain Knaff <alain@linux.lu>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: Karel Zak <kzak@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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<linux/fd.h> references __user which is defined in <linux/compiler.h>.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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several pointers in ioctl structures marked as userland ones.
And that's it with this patchset. A couple more of those and we'll
be done with the noise warnings ;-)
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From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
From: Alain Knaff <alain.knaff@lll.lu>
This patch adds support for floppy disks whose sectors are numbered
starting at 0 rather than 1 as usual disks would be. This format is used
for some CP/M disks, and also for certain music samplers (such as Ensoniq
Ensoniq EPS 16plus).
In order to use it, you need an fdutils with the current patch from
http://fdutils.linux.lu as well, and then do setfdrpm /dev/fd0 dd zerobased
sect=10 or setfdprm /dev/fd0 hd zerobased sect.
In addtion, the patch also fixes my email addresses. I no longer use
pobox.com.
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- Al Viro: floppy_eject cleanup, mount cleanups
- Jens Axboe: bio updates
- Ingo Molnar: mempool fixes
- GOTO Masanori: Fix O_DIRECT error handling
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