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Since we have had a LANANA major number for years, and it is documented in
devices.txt, I think that this first patch can go upstream.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Allocate major 260 for osd.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
CC: Torben Mathiasen <device@lanana.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Implement extended device numbers. A block driver can tell block
layer that it wants to use extended device numbers. After the usual
minor space is used up, block layer automatically allocates devt's
from EXT_BLOCK_MAJOR.
Currently only one major number is allocated for this but as the
allocation is strictly on-demand, ~1mil minor space under it should
suffice unless the system actually has more than ~1mil partitions and
if that ever happens adding more majors to the extended devt area is
easy.
Due to internal implementation issues, the first partition can't be
allocated on the extended area. In other words, genhd->minors should
at least be 1. This limitation will be lifted by later changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Currently, linux/major.h defines a GRAPHDEV_MAJOR (29) that nobody uses,
and linux/fb.h defines the real FB_MAJOR (also 29), that only fbmem.c
needs. Drop GRAPHDEV_MAJOR from major.h, move FB_MAJOR definition from
fb.h to major.h, and fix fbmem.c to use major.h's definition.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The block device frontend driver allows the kernel to access block
devices exported exported by a virtual machine containing a physical
block device driver.
Signed-off-by: Ian Pratt <ian.pratt@xensource.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <axboe@kernel.dk>
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The MMC block devices now have an assigned major. Make sure
we actually use it.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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Today I wondered about /dev/parport<n> after not seeing anything in
drivers/parport register char-major-99. Having PP_MAJOR in
include/linux/major.h would've allowed me to more quickly determine that it
was the ppdev driver driving these.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This patch adds a device driver for scsi media changer devices.
Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Since at about half a year, this driver was no longer selectable via
Kconfig.
Since it seems noone missed this driver, therefore this patch removes
it.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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From: Stephen Rothwell <sfr@canb.auug.org.au>
This patch adds the driver for the PPC64 iSeries virtual tape.
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From: Stephen Rothwell <sfr@canb.auug.org.au>
Add the PPC64 iSeries virtual disk driver
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From: Christoph Hellwig <hch@lst.de>
Some junk which was needed before we did the big cleansweep for the sysrq
syncing stuff.
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From: Christoph Hellwig <hch@lst.de>
Some people may already have noticed that I've been revamping the devfs API
recently. The worst offender still left is devfs_register, it's prototype
is:
devfs_handle_t devfs_register(devfs_handle_t dir,
const char *name, unsigned int flags,
unsigned int major, unsigned int minor,
umode_t mode, void *ops, void *info)
Of these:
- dir and flags are always zero
- the return value is never used
- info is only used in one driver which doesn't even need it for
operation
- umode_t always describes a character device
- name very often comes from a stack buffer we sprintf'ed into
so obviously we really want a much simpler API instead. My first draft for
this was:
int devfs_mk_cdev(dev_t dev, umode_t mode,
struct file_operations *fops, void *info,
const char *fmt, ...)
this removes the unused argumens, switches to a proper dev_t for the device
number and allows to directly use a printf-like expression as name, getting
rid of the temporary buffers.
Now Al has reappeared and put the first steps of his CIDR for charater device
on public ftp and we'll soon have a similar lookup object + fops mechanism in
generic code as we already habe for blockdevices, i.e. the devfs code to
assign fops from an entry will become superflous as generic code already does
it. That means the fops and info arguments are obsolete before they were
introduced, so I'd like to propose the following API instead:
int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...)
which is much nicer anyway. The educated reader will notice that this is
exactly the same prototype devfs_mk_bdev has so I'll probably get suggestions
to merge those two into some kind of devfs_mk_node soon. Personally I don't
like that as character and blockdevices are two really separate entinities
and I'll like to keep them as separate as possible.
Example patch that introduces the API and converts drivers/input attached.
Every driver which calls devfs_mk_cdev (about 50) needs conversion. Note
that the transition can happen in pieces - devfs_register continues to work
after this patch, it's just the plan to get rid of it in the end.
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Patch from Andries.Brouwer@cwi.nl
The third patch removes the last occurrences of MAX_BLKDEV and MAX_CHRDEV and
sorts the majors in major.h. It also updates the definition of
SCSI_DISK_MAJOR.
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This is the final patch to make sd work properly in a hotplug
enviroment. Add a bitmap for currently used disks so that we
can properly reuse dev_t when a disk is hot-unplugged.
While at that add support for the eight additional majors
allocated to sd in the latest devices.txt [1].
If only register_blkdev finally died we could nuke almost all
knowledge of majors/minors from sd...
[1] http://www.lanana.org/docs/device-list/devices.txt
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A driver for the Mux serial ports in some PA-RISC servers from Ryan Bradetich.
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Now that the devicemapper hit the tree there's no more reason
to keep the uncompiling LVM1 code around and it's various hacks
to other files around, this patch removes it.
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- Alan Cox: much more merging
- Pete Zaitcev: ymfpci race fixes
- Andrea Arkangeli: VM race fix and OOM tweak.
- Arjan Van de Ven: merge RH kernel fixes
- Andi Kleen: use more readable 'likely()/unlikely()' instead of __builtin_expect()
- Keith Owens: fix 64-bit ELF types
- Gerd Knorr: mark more broken PCI bridges, update btaudio driver
- Paul Mackerras: powermac driver update
- me: clean up PTRACE_DETACH to use common infrastructure
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- Rui Sousa: emu10k1 module fixes, remove joystick part.
- Alan Cox: driver merges
- Andrea Arkangeli: alpha updates
- David Woodhouse: up_and_exit -> complete_and_exit
- David Miller: sparc and network update
- Andrew Morton: update 3c59x driver
- Neil Brown: NFS export VFAT, knfsd cleanups, raid fixes
- Ben Collins: ieee1394 updates
- Paul Mackerras: PPC update
- me: make sure we don't lose position bits in "filldir()"
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- Hui-Fen Hsu: sis900 driver update
- NIIBE Yutaka: Super-H update
- Alan Cox: more resyncs (ARM down, but more to go)
- David Miller: network zerocopy, Sparc sync, qlogic,FC fix, etc.
- David Miller/me: get rid of various drivers hacks to do mmap
alignment behind the back of the VM layer. Create a real
protocol for it.
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