Greg Ungerer [Mon, 26 Jun 2006 00:33:10 +0000 (10:33 +1000)]
[PATCH] m68knommu: 532x FEC eth struct map
Specify the struct mapping used on the new Freescale 532x CPU family's
FEC ethernet core.
Patch submitted by Matt Waddel <Matt.Waddel@freescale.com>.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Al Viro [Sun, 25 Jun 2006 23:42:33 +0000 (16:42 -0700)]
[PATCH] spufs: update ->flush method proto
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Alexey Dobriyan [Sun, 25 Jun 2006 23:42:33 +0000 (16:42 -0700)]
[PATCH] xfs: update ->flush method proto
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Nathan Scott <nathans@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Linus Torvalds [Sun, 25 Jun 2006 23:07:58 +0000 (16:07 -0700)]
Merge branch 'for-linus' of /linux/kernel/git/roland/infiniband
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
IB/iser: iSER Kconfig and Makefile
IB/iser: iSER handling of memory for RDMA
IB/iser: iSER RDMA CM (CMA) and IB verbs interaction
IB/iser: iSER initiator iSCSI PDU and TX/RX
IB/iser: iSCSI iSER transport provider high level code
IB/iser: iSCSI iSER transport provider header file
IB/uverbs: Remove unnecessary list_del()s
IB/uverbs: Don't free wr list when it's known to be empty
Linus Torvalds [Sun, 25 Jun 2006 19:30:33 +0000 (12:30 -0700)]
Fix NFS2 compile error
Trond had apparently merged the same patch twice, causing a duplicate
include of the "internal.h" file, with resulting obvious confusion.
Tssk. I'm the only one allowed to send out trees that don't even
compile! Who does this Trond guy think he is?
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Björn Steinbrink [Sun, 25 Jun 2006 14:24:40 +0000 (16:24 +0200)]
[PATCH] i386: Fix softirq accounting with 4K stacks
Copy the softirq bits in preempt_count from the current context into the
hardirq context when using 4K stacks to make the softirq_count macro work
correctly and thereby fix softirq cpu time accounting.
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Linus Torvalds [Sun, 25 Jun 2006 17:54:14 +0000 (10:54 -0700)]
Merge git://git.linux-nfs.org/pub/linux/nfs-2.6
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (51 commits)
nfs: remove nfs_put_link()
nfs-build-fix-99
git-nfs-build-fixes
Merge branch 'odirect'
NFS: alloc nfs_read/write_data as direct I/O is scheduled
NFS: Eliminate nfs_get_user_pages()
NFS: refactor nfs_direct_free_user_pages
NFS: remove user_addr, user_count, and pos from nfs_direct_req
NFS: "open code" the NFS direct write rescheduler
NFS: Separate functions for counting outstanding NFS direct I/Os
NLM: Fix reclaim races
NLM: sem to mutex conversion
locks.c: add the fl_owner to nlm_compare_locks
NFS: Display the chosen RPCSEC_GSS security flavour in /proc/mounts
NFS: Split fs/nfs/inode.c
NFS: Fix typo in nfs_do_clone_mount()
NFS: Fix compile errors introduced by referrals patches
NFSv4: Ensure that referral mounts bind to a reserved port
NFSv4: A root pathname is sent as a zero component4
NFSv4: Follow a referral
...
Linus Torvalds [Sun, 25 Jun 2006 17:09:31 +0000 (10:09 -0700)]
Merge /pub/scm/linux/kernel/git/mchehab/v4l-dvb
* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (244 commits)
V4L/DVB (4210b): git-dvb: tea575x-tuner build fix
V4L/DVB (4210a): git-dvb versus matroxfb
V4L/DVB (4209): Added some BTTV PCI IDs for newer boards
Fixes some sync issues between V4L/DVB development and GIT
V4L/DVB (4206): Cx88-blackbird: always set encoder height based on tvnorm->id
V4L/DVB (4205): Merge tda9887 module into tuner.
V4L/DVB (4203): Explicitly set the enum values.
V4L/DVB (4202): allow selecting CX2341x port mode
V4L/DVB (4200): Disable bitrate_mode when encoding mpeg-1.
V4L/DVB (4199): Add cx2341x-specific control array to cx2341x.c
V4L/DVB (4198): Avoid newer usages of obsoleted experimental MPEGCOMP API
V4L/DVB (4197): Port new MPEG API to saa7134-empress with saa6752hs
V4L/DVB (4196): Port cx88-blackbird to the new MPEG API.
V4L/DVB (4193): Update cx2341x fw encoding API doc.
V4L/DVB (4192): Use control helpers for saa7115, cx25840, msp3400.
V4L/DVB (4191): Add CX2341X MPEG encoder module.
V4L/DVB (4190): Add helper functions for control processing to v4l2-common.
V4L/DVB (4189): Add videodev support for VIDIOC_S/G/TRY_EXT_CTRLS.
V4L/DVB (4188): Add new MPEG control/ioctl definitions to videodev2.h
V4L/DVB (4186): Add support for the DNTV Live! mini DVB-T card.
...
Linus Torvalds [Sun, 25 Jun 2006 17:04:15 +0000 (10:04 -0700)]
Fix PM_TRACE dependency: works only on 32-bit x86 for now
Not that x86-64 and other architecture support should be difficult to
add (trivial fixups to the data format and add the proper linker script
entry).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Sonny Rao [Sun, 25 Jun 2006 12:49:34 +0000 (05:49 -0700)]
[PATCH] fix race in idr code
I ran into a bug where the kernel died in the idr code:
cpu 0x1d: Vector: 300 (Data Access) at [
c000000b7096f710]
pc:
c0000000001f8984: .idr_get_new_above_int+0x140/0x330
lr:
c0000000001f89b4: .idr_get_new_above_int+0x170/0x330
sp:
c000000b7096f990
msr:
800000000000b032
dar: 0
dsisr:
40010000
current = 0xc000000b70d43830
paca = 0xc000000000556900
pid = 2022, comm = hwup
1d:mon> t
[
c000000b7096f990]
c0000000000d2ad8 .expand_files+0x2e8/0x364 (unreliable)
[
c000000b7096faa0]
c0000000001f8bf8 .idr_get_new_above+0x18/0x68
[
c000000b7096fb20]
c00000000002a054 .init_new_context+0x5c/0xf0
[
c000000b7096fbc0]
c000000000049dc8 .copy_process+0x91c/0x1404
[
c000000b7096fcd0]
c00000000004a988 .do_fork+0xd8/0x224
[
c000000b7096fdc0]
c00000000000ebdc .sys_clone+0x5c/0x74
[
c000000b7096fe30]
c000000000008950 .ppc_clone+0x8/0xc
Jan Engelhardt [Sun, 25 Jun 2006 12:49:33 +0000 (05:49 -0700)]
[PATCH] update-devices.txt
Update Documentation/devices.txt with a new version from the LANANA site
http://www.lanana.org/docs/device-list/devices-2.6+.txt
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Hua Zhong [Sun, 25 Jun 2006 12:49:32 +0000 (05:49 -0700)]
[PATCH] remove unlikely(sb) in prune_dcache
likely profiling shows that the following is a miss.
After boot:
[+- ] Type | # True | # False | Function:Filename@Line
+unlikely | 1074| 0 prune_dcache()@:fs/dcache.c@409
After a bonnie++ run:
+unlikely | 66716| 19584 prune_dcache()@:fs/dcache.c@409
So remove it.
Signed-off-by: Hua Zhong <hzhong@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Alexey Dobriyan [Sun, 25 Jun 2006 12:49:32 +0000 (05:49 -0700)]
[PATCH] Fix "biovec-(256)" in /proc/slabinfo
Stringify does what it was told to do.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Amul Shah [Sun, 25 Jun 2006 12:49:31 +0000 (05:49 -0700)]
[PATCH] Fix kdump Crash Kernel boot memory reservation for NUMA machines
This patch will fix a boot memory reservation bug that trashes memory on
the ES7000 when loading the kdump crash kernel.
The code in arch/x86_64/kernel/setup.c to reserve boot memory for the crash
kernel uses the non-numa aware "reserve_bootmem" function instead of the
NUMA aware "reserve_bootmem_generic". I checked to make sure that no other
function was using "reserve_bootmem" and found none, except the ones that
had NUMA ifdef'ed out.
I have tested this patch only on an ES7000 with NUMA on and off (numa=off)
in a single (non-NUMA) and multi-cell (NUMA) configurations.
Signed-off-by: Amul Shah <amul.shah@unisys.com>
Looks-good-to: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Heiko Carstens [Sun, 25 Jun 2006 12:49:30 +0000 (05:49 -0700)]
[PATCH] s390: setup.c cleanup + build fix
Cleanup & fix 31 bit compilation:
CC arch/s390/kernel/setup.o
arch/s390/kernel/setup.c:83: error: initializer element is not computable at
load time
arch/s390/kernel/setup.c:83: error: (near initialization for
'code_resource.start')
Not sure which patch in the -mm tree breaks this, but since this can be
considered a cleanup it can be merged anyway.
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Domen Puncer [Sun, 25 Jun 2006 12:49:29 +0000 (05:49 -0700)]
[PATCH] au1xxx: oss sound support for au1200
au1550 ac97 driver works fine on au1200 too.
Comments at the top of file state this code is GPL, so lets
mark it as GPL too.
Signed-off-by: Domen Puncer <domen.puncer@ultra.si>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:49:29 +0000 (05:49 -0700)]
[PATCH] parport: add to kernel-doc
Add parport interfaces to kernel-doc template. Small doc. cleanups in 2
parport source files.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Domen Puncer [Sun, 25 Jun 2006 12:49:27 +0000 (05:49 -0700)]
[PATCH] au1550_ac97: spin_unlock in error path
Error paths didn't spin_unlock.
Signed-off-by: Domen Puncer <domen.puncer@ultra.si>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Evgeniy Dushistov [Sun, 25 Jun 2006 12:49:27 +0000 (05:49 -0700)]
[PATCH] ext2: cleanup: put_page and comment fix
Things which force me think a little: why so?
Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
KaiGai Kohei [Sun, 25 Jun 2006 12:49:26 +0000 (05:49 -0700)]
[PATCH] pacct: none-delayed process accounting accumulation
In current 2.6.17 implementation, signal_struct refered from task_struct is
used for per-process data structure. The pacct facility also uses it as a
per-process data structure to store stime, utime, minflt, majflt. But those
members are saved in __exit_signal(). It's too late.
For example, if some threads exits at same time, pacct facility has a
possibility to drop accountings for a part of those threads. (see, the
following 'The results of original 2.6.17 kernel') I think accounting
information should be completely collected into the per-process data structure
before writing out an accounting record.
This patch fixes this matter. Accumulation of stime, utime, minflt and majflt
are done before generating accounting record.
[mingo@elte.hu: fix acct_collect() siglock bug found by lockdep]
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
KaiGai Kohei [Sun, 25 Jun 2006 12:49:25 +0000 (05:49 -0700)]
[PATCH] pacct: avoidance to refer the last thread as a representation of the process
When pacct facility generate an 'ac_flag' field in accounting record, it
refers a task_struct of the thread which died last in the process. But any
other task_structs are ignored.
Therefore, pacct facility drops ASU flag even if root-privilege operations are
used by any other threads except the last one. In addition, AFORK flag is
always set when the thread of group-leader didn't die last, although this
process has called execve() after fork().
We have a same matter in ac_exitcode. The recorded ac_exitcode is an exit
code of the last thread in the process. There is a possibility this exitcode
is not the group leader's one.
KaiGai Kohei [Sun, 25 Jun 2006 12:49:24 +0000 (05:49 -0700)]
[PATCH] pacct: add pacct_struct to fix some pacct bugs.
The pacct facility need an i/o operation when an accounting record is
generated. There is a possibility to wake OOM killer up. If OOM killer is
activated, it kills some processes to make them release process memory
regions.
But acct_process() is called in the killed processes context before calling
exit_mm(), so those processes cannot release own memory. In the results, any
processes stop in this point and it finally cause a system stall.
David Howells [Sun, 25 Jun 2006 12:49:22 +0000 (05:49 -0700)]
[PATCH] Corrections to memory barrier doc
Apply some small corrections to the memory barrier document, as contributed by:
Christoph Lameter <clameter@sgi.com>
Kirill Smelkov <kirr@mns.spb.ru>
Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Fulghum [Sun, 25 Jun 2006 12:49:22 +0000 (05:49 -0700)]
[PATCH] synclink_gt: add GT2 adapter support
Add support for SyncLink GT2 adapter to driver.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Fulghum [Sun, 25 Jun 2006 12:49:21 +0000 (05:49 -0700)]
[PATCH] fix synclink_gt diagnostics error reporting
Fix diagnostics error reporting that was being overwritten by incorrect use
of return codes from individual diagnostic functions.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Fulghum [Sun, 25 Jun 2006 12:49:21 +0000 (05:49 -0700)]
[PATCH] add synclink_gt crc return feature
Add ability to return HDLC CRC to user application.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Fulghum [Sun, 25 Jun 2006 12:49:20 +0000 (05:49 -0700)]
[PATCH] add synclink_gt custom hdlc idle
Add custom HDLC idle pattern feature.
It allows the user to specify an arbitrary 8 or 16 bit repeating pattern on
the transmit data pin between HDLC frames.
In most cases the idle pattern is continuous ones or flags as supported by off
the shelf synchronous controllers and defined in the ISO3309 standard. Some
applications (radio/satellite modems, connections to legacy military hardware)
require non-standard patterns.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Morton [Sun, 25 Jun 2006 12:49:19 +0000 (05:49 -0700)]
[PATCH] irda-usb printk fix
drivers/net/irda/irda-usb.c: In function 'stir421x_patch_device':
drivers/net/irda/irda-usb.c:1108: warning: format '%u' expects type 'unsigned int', but argument 4 has type 'size_t'
Cc: Greg KH <greg@kroah.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:49:19 +0000 (05:49 -0700)]
[PATCH] kthread: move kernel-doc and put it into DocBook
Move kthread API kernel-doc from kthread.h to kthread.c & fix it.
Add kthread API to kernel-api DocBook.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:49:18 +0000 (05:49 -0700)]
[PATCH] DMI: cleanup kernel-doc, add to DocBook
Add DMI interface functions to a new Firmware Interfaces chapter in the
kernel-api DocBook. Clean up kernel-doc in drivers/firmware/dmi_scan.c.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jeremy Fitzhardinge [Sun, 25 Jun 2006 12:49:17 +0000 (05:49 -0700)]
[PATCH] Implement kasprintf
Implement kasprintf, a kernel version of asprintf. This allocates the
memory required for the formatted string, including the trailing '\0'.
Returns NULL on allocation failure.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jeremy Fitzhardinge [Sun, 25 Jun 2006 12:49:17 +0000 (05:49 -0700)]
[PATCH] Fix bounds check in vsnprintf, to allow for a 0 size and NULL buffer
This change allows callers to use a 0-byte buffer and a NULL buffer pointer
with vsnprintf, so it can be used to determine how large the resulting
formatted string will be.
Previously the code effectively treated a size of 0 as a size of 4G (on
32-bit systems), with other checks preventing it from actually trying to
emit the string - but the terminal \0 would still be written, which would
crash if the buffer is NULL.
This change changes the boundary check so that 'end' points to the putative
location of the terminal '\0', which is only written if size > 0.
vsnprintf still allows the buffer size to be set very large, to allow
unbounded buffer sizes (to implement sprintf, etc).
[akpm@osdl.org: fix long-vs-longlong confusion]
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Atsushi Nemoto [Sun, 25 Jun 2006 12:49:15 +0000 (05:49 -0700)]
[PATCH] LED: add LED heartbeat trigger
Add an LED trigger acts like a heart beat. This can be used as a
replacement of CONFIG_HEARTBEAT code exists in some arch's timer code.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Cc: "Nish Aravamudan" <nish.aravamudan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:49:15 +0000 (05:49 -0700)]
[PATCH] ktime/hrtimer: fix kernel-doc comments
Fix kernel-doc formatting in ktime.h and hrtimer.[ch] files.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:49:14 +0000 (05:49 -0700)]
[PATCH] reed-solomon: fix kernel-doc comments
Fix kernel-doc formatting in Reed-Solomon code.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:49:14 +0000 (05:49 -0700)]
[PATCH] kernel-doc: use Members for struct fields consistently
kernel-doc struct fields should be consistently called "Members", not
"Arguments", so switch man-mode output to use "Members" like all of the
other formats do.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:49:13 +0000 (05:49 -0700)]
[PATCH] kernel-doc: don't use XML escapes in text or man output mode
For kernel-doc output modes of text and man, do not use XML escapes for
less-than, greater-than, and ampersand characters. I.e., leave the text
and man output clean and readable.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Fulghum [Sun, 25 Jun 2006 12:49:12 +0000 (05:49 -0700)]
[PATCH] fix memory leak in rocketport rp_do_receive
Fix memory leak caused by incorrect use of tty buffer facility. tty
buffers are allocated but never processed by call to tty_flip_buffer_push
so they accumulate on the full buffer list. Current code uses the buffers
as a temporary storage for data before passing it directly to the line
discipline.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ulrich Drepper [Sun, 25 Jun 2006 12:49:11 +0000 (05:49 -0700)]
[PATCH] Implement AT_SYMLINK_FOLLOW flag for linkat
When the linkat() syscall was added the flag parameter was added in the
last minute but it wasn't used so far. The following patch should change
that. My tests show that this is all that's needed.
If OLDNAME is a symlink setting the flag causes linkat to follow the
symlink and create a hardlink with the target. This is actually the
behavior POSIX demands for link() as well but Linux wisely does not do
this. With this flag (which will most likely be in the next POSIX
revision) the programmer can choose the behavior, defaulting to the safe
variant. As a side effect it is now possible to implement a
POSIX-compliant link(2) function for those who are interested.
touch file
ln -s file symlink
linkat(fd, "symlink", fd, "newlink", 0)
-> newlink is hardlink of symlink
linkat(fd, "symlink", fd, "newlink", AT_SYMLINK_FOLLOW)
-> newlink is hardlink of file
The value of AT_SYMLINK_FOLLOW is determined by the definition we already
use in glibc.
Signed-off-by: Ulrich Drepper <drepper@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Yoichi Yuasa [Sun, 25 Jun 2006 12:49:11 +0000 (05:49 -0700)]
[PATCH] add "select GPIO_VR41XX" for TANBAC_TB0229
TANBAC_TB0229 requires GPIO_VR41XX. This patch adds "select GPIO_VR41XX"
for TANBAC_TB0229.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Heiko Carstens [Sun, 25 Jun 2006 12:49:10 +0000 (05:49 -0700)]
[PATCH] cpu hotplug: fix CPU_UP_CANCEL handling
If a cpu hotplug callback fails on CPU_UP_PREPARE, all callbacks will be
called with CPU_UP_CANCELED. A few of these callbacks assume that on
CPU_UP_PREPARE a pointer to task has been stored in a percpu array. This
assumption is not true if CPU_UP_PREPARE fails and the following calls to
kthread_bind() in CPU_UP_CANCELED will cause an addressing exception
because of passing a NULL pointer.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Frode Isaksen [Sun, 25 Jun 2006 12:49:09 +0000 (05:49 -0700)]
[PATCH] fs: sys_poll with timeout -1 bug fix
If you do a poll() call with timeout -1, the wait will be a big number
(depending on HZ) instead of infinite wait, since -1 is passed to the
msecs_to_jiffies function.
Signed-off-by: Frode Isaksen <frode.isaksen@gmail.com>
Acked-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Serge E. Hallyn [Sun, 25 Jun 2006 12:49:08 +0000 (05:49 -0700)]
[PATCH] kthread: convert stop_machine into a kthread
- Update stop_machine.c to spawn stop_machine as kthreads rather than the
deprecated kernel_threads.
- Update stop_machine to use the more efficient kthread_bind() before
running task in place of set_cpus_allowed() after.
[akpm@osdl.org: remove now-wrong set_cpus_allowed()]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Al Viro [Sun, 25 Jun 2006 12:49:08 +0000 (05:49 -0700)]
[PATCH] fix %s in affs_fill_super()
%s is only valid if array is known to contain NUL or precision is given and
does not exceed the size of array.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:07 +0000 (05:49 -0700)]
[PATCH] CCISS: tidy up product table indentation
Make each one fit on a line so it's easier to read. I re-ordered
COMPAQ_CISSC/0x4091, which was out of order. I double-checked these, but it
would be good if you'd also check them to make sure I didn't miss any.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:06 +0000 (05:49 -0700)]
[PATCH] CCISS: run through Lindent
cciss is full of inconsistent style ("for (" vs. "for(", lines that end with
whitespace, lines beginning with a mix of spaces & tabs, etc).
This patch changes only whitespace.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:05 +0000 (05:49 -0700)]
[PATCH] CCISS: remove parens around return values
Typical Linux style is "return -EINVAL", not "return(-EINVAL)".
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:04 +0000 (05:49 -0700)]
[PATCH] CCISS: fix a few spelling errors
Fix a few spelling errors.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:03 +0000 (05:49 -0700)]
[PATCH] CCISS: use ARRAY_SIZE without intermediates
It's easier to verify loop bounds if the array name is mentioned the for()
statement that steps through the array.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:03 +0000 (05:49 -0700)]
[PATCH] CCISS: announce cciss%d devices with PCI address/IRQ/DAC info
We already print "cciss: using DAC cycles" or similar for every adapter found:
why not just identify the device we're talking about and include other useful
information?
Jeff Garzik <jeff@garzik.org>:
Although this patch is correct, I would consider using dev_printk() rather
than referencing pci_name() in printk() arguments.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:02 +0000 (05:49 -0700)]
[PATCH] CCISS: request all PCI resources
We should call pci_request_regions() to claim all resources the device
decodes. Previously, we claimed only the I/O port range.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bjorn Helgaas [Sun, 25 Jun 2006 12:49:01 +0000 (05:49 -0700)]
[PATCH] CCISS: disable device when returning failure
If something fails after we call pci_enable_device(), we should call
pci_disable_device() before returning the failure.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Rob Landley [Sun, 25 Jun 2006 12:49:00 +0000 (05:49 -0700)]
[PATCH] Initramfs docs update
New section on creating an external initramfs image using cpio (with
script), a warning about bad advice in the cpio man page, a bit of
debugging advice (hello world and rdinit=/bin/sh), and a few minor tweaks
to other parts of it.
Signed-off-by: Rob Landley <rob@landley.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Serge E. Hallyn [Sun, 25 Jun 2006 12:49:00 +0000 (05:49 -0700)]
[PATCH] kthread: convert smbiod
Update smbiod to use kthread instead of deprecated kernel_thread.
[akpm@osdl.org: cleanup]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Serge E. Hallyn [Sun, 25 Jun 2006 12:48:59 +0000 (05:48 -0700)]
[PATCH] kthread: update loop.c to use kthread
Update loop.c to use a kthread instead of a deprecated kernel_thread for
loop devices.
[akpm@osdl.org: don't change the thread's name]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:59 +0000 (05:48 -0700)]
[PATCH] kernel-doc for lib/crc*.c
Make kernel-doc corrections & additions to lib/crc*.c. Add crc functions to
kernel-api.tmpl in DocBook.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:58 +0000 (05:48 -0700)]
[PATCH] kernel-doc for lib/cmdline.c
Add a new chapter for kernel-lib functions to kernel-api.tmpl. Add
lib/cmdline.c to the new kernel-lib chapter.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:57 +0000 (05:48 -0700)]
[PATCH] kernel-doc for lib/bitmap.c
Make corrections/fixes to kernel-doc in lib/bitmap.c and include it in DocBook
template.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Eric Sesterhenn [Sun, 25 Jun 2006 12:48:57 +0000 (05:48 -0700)]
[PATCH] Remove needless checks in fs/9p/vfs_inode.c
coverity found two needless checks in vfs_inode.c (cid #1165 and #1164)
In both cases inode is always NULL when we goto error; either because it
is still initialized to NULL or is set to NULL explicitly. This patch
simply removes these checks to save some code.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@lanl.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:56 +0000 (05:48 -0700)]
[PATCH] ide-floppy: fix debug-only syntax error
Fix debug-only printk syntax error.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:55 +0000 (05:48 -0700)]
[PATCH] kernel-doc: warn on malformed function docs.
When the verbose (-v) option is used with scripts/kernel-doc, this option
reports when the kernel-doc format is malformed and apparently contains
function description lines before function parameters. In these cases, the
kernel-doc script will print something like: Warning(filemap.c:335):
contents before sections
I have fixed the problems in mm/filemap.c and added lots of kernel-doc to
that file (posted to the linux-mm mailing list Mon. 2006-June-12).
The real goal (as requested by Andrew Morton) is to allow the short
function description to be more than one line long. This patch is both a
kernel-doc checker and a tool en route to that goal.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Sun, 25 Jun 2006 12:48:55 +0000 (05:48 -0700)]
[PATCH] fuse: scramble lock owner ID
VFS uses current->files pointer as lock owner ID, and it wouldn't be
prudent to expose this value to userspace. So scramble it with XTEA using
a per connection random key, known only to the kernel. Only one direction
needs to be implemented, since the ID is never sent in the reverse
direction.
The XTEA algorithm is implemented inline since it's simple enough to do so,
and this adds less complexity than if the crypto API were used.
Thanks to Jesper Juhl for the idea.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Sun, 25 Jun 2006 12:48:54 +0000 (05:48 -0700)]
[PATCH] fuse: add request interruption
Add synchronous request interruption. This is needed for file locking
operations which have to be interruptible. However filesystem may implement
interruptibility of other operations (e.g. like NFS 'intr' mount option).
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Sun, 25 Jun 2006 12:48:53 +0000 (05:48 -0700)]
[PATCH] fuse: rename the interrupted flag
Rename the 'interrupted' flag to 'aborted', since it indicates exactly that,
and next patch will introduce an 'interrupted' flag for a
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Sun, 25 Jun 2006 12:48:52 +0000 (05:48 -0700)]
[PATCH] fuse: ensure FLUSH reaches userspace
All POSIX locks owned by the current task are removed on close(). If the
FLUSH request resulting initiated by close() fails to reach userspace, there
might be locks remaining, which cannot be removed.
The only reason it could fail, is if allocating the request fails. In this
case use the request reserved for RELEASE, or if that is currently used by
another FLUSH, wait for it to become available.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Sun, 25 Jun 2006 12:48:52 +0000 (05:48 -0700)]
[PATCH] fuse: add POSIX file locking support
This patch adds POSIX file locking support to the fuse interface.
This implementation doesn't keep any locking state in kernel. Unlocking on
close() is handled by the FLUSH message, which now contains the lock owner id.
Mandatory locking is not supported. The filesystem may enfoce mandatory
locking in userspace if needed.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Sun, 25 Jun 2006 12:48:51 +0000 (05:48 -0700)]
[PATCH] fuse: add control filesystem
Add a control filesystem to fuse, replacing the attributes currently exported
through sysfs. An empty directory '/sys/fs/fuse/connections' is still created
in sysfs, and mounting the control filesystem here provides backward
compatibility.
Advantages of the control filesystem over the previous solution:
- allows the object directory and the attributes to be owned by the
filesystem owner, hence letting unpriviled users abort the
filesystem connection
- does not suffer from module unload race
[akpm@osdl.org: fix this fs for recent dhowells depredations]
[akpm@osdl.org: fix 64-bit printk warnings]
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Miklos Szeredi [Sun, 25 Jun 2006 12:48:50 +0000 (05:48 -0700)]
[PATCH] fuse: no backgrounding on interrupt
Don't put requests into the background when a fatal interrupt occurs while the
request is in userspace. This removes a major wart from the implementation.
Backgrounding of requests was introduced to allow breaking of deadlocks.
However now the same can be achieved by aborting the filesystem through the
'abort' sysfs attribute.
This is a change in the interface, but should not cause problems, since these
kinds of deadlocks never happen during normal operation.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jan Engelhardt [Sun, 25 Jun 2006 12:48:49 +0000 (05:48 -0700)]
[PATCH] fuse: use MISC_MAJOR
The following patches add POSIX file locking to the fuse interface.
Additional changes ralated to this are:
- asynchronous interrupt of requests by SIGKILL no longer supported
- separate control filesystem, instead of using sysfs objects
- add support for synchronously interrupting requests
Details are documented in Documentation/filesystems/fuse.txt throughout the
patches.
This patch:
Have fuse.h use MISC_MAJOR rather than a hardcoded '10'.
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
David Howells [Sun, 25 Jun 2006 12:48:49 +0000 (05:48 -0700)]
[PATCH] Another couple of alterations to the memory barrier doc
Make another couple of alterations to the memory barrier document following
suggestions by Alan Stern and in co-operation with Paul McKenney:
(*) Rework the point of introduction of memory barriers and the description
of what they are to reiterate why they're needed.
(*) Modify a statement about the use of data dependency barriers to note that
other barriers can be used instead (as they imply DD-barriers).
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-By: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Eric Sesterhenn [Sun, 25 Jun 2006 12:48:48 +0000 (05:48 -0700)]
[PATCH] More !tty cleanups in drivers/char
Another bunch of checks in the char drivers .put_char() and .write()
routines, where tty can never be NULL. This patch removes these checks to
save some code. Coverity choked at those with the following bug ids:
isicom.c 767, 766
specialix.c 773, 774
synclink_cs.c 779, 781
synclink_gt.c 784, 785
synclinkmp.c 784, 785
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Cc: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Niels Kristian Bech Jensen [Sun, 25 Jun 2006 12:48:47 +0000 (05:48 -0700)]
[PATCH] Update contact information in CREDITS
Update my contact information in CREDITS.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ian Kent [Sun, 25 Jun 2006 12:48:47 +0000 (05:48 -0700)]
[PATCH] autofs4: need to invalidate children on tree mount expire
I've found a case where invalid dentrys in a mount tree, waiting to be
cleaned up by d_invalidate, prevent the expected expire.
In this case dentrys created during a lookup for which a mount fails or has
no entry in the mount map contribute to the d_count of the parent dentry.
These dentrys may not be invalidated prior to comparing the interanl usage
count of valid autofs dentrys against the dentry d_count which makes a
mount tree appear busy so it doesn't expire.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Eric Sesterhenn [Sun, 25 Jun 2006 12:48:46 +0000 (05:48 -0700)]
[PATCH] Clean up char/esp.c
coverity choked at another two !tty checks, in places where tty can
never be NULL. Since it removes some code we should remove
these checks. (Coverity ids #763,#762)
Signed-off-by Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Eric Sesterhenn [Sun, 25 Jun 2006 12:48:45 +0000 (05:48 -0700)]
[PATCH] Cyclades Cleanup
coverity choked at two !tty checks, in places where tty can never be NULL.
Since it removes some code we should remove these checks. (Coverity ids
#763,#762)
[akpm@osdl.org: even cleaner!]
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Anton Blanchard [Sun, 25 Jun 2006 12:48:44 +0000 (05:48 -0700)]
[PATCH] Link error when futexes are disabled on 64bit architectures
If futexes are disabled we fail to link on ppc64.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul E. McKenney [Sun, 25 Jun 2006 12:48:44 +0000 (05:48 -0700)]
[PATCH] RCU documentation: self-limiting updates and call_rcu()
An update to the RCU documentation calling out the
self-limiting-update-rate advantages of synchronize_rcu(), and describing
how to use call_rcu() in a way that results in self-limiting updates.
Self-limiting updates are important to avoiding RCU-induced OOM in face of
denial-of-service attacks.
Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Wu Fengguang [Sun, 25 Jun 2006 12:48:43 +0000 (05:48 -0700)]
[PATCH] readahead: backoff on I/O error
Backoff readahead size exponentially on I/O error.
Michael Tokarev <mjt@tls.msk.ru> described the problem as:
[QUOTE]
Suppose there's a CD-rom with a scratch/etc, one sector is unreadable.
In order to "fix" it, one have to read it and write to another CD-rom,
or something.. or just ignore the error (if it's just a skip in a video
stream). Let's assume the unreadable block is number U.
But current behavior is just insane. An application requests block
number N, which is before U. Kernel tries to read-ahead blocks N..U.
Cdrom drive tries to read it, re-read it.. for some time. Finally,
when all the N..U-1 blocks are read, kernel returns block number N
(as requested) to an application, successefully.
Now an app requests block number N+1, and kernel tries to read
blocks N+1..U+1. Retrying again as in previous step.
And so on, up to when an app requests block number U-1. And when,
finally, it requests block U, it receives read error.
So, kernel currentry tries to re-read the same failing block as
many times as the current readahead value (256 (times?) by default).
This whole process already killed my cdrom drive (I posted about it
to LKML several months ago) - literally, the drive has fried, and
does not work anymore. Ofcourse that problem was a bug in firmware
(or whatever) of the drive *too*, but.. main problem with that is
current readahead logic as described above.
[/QUOTE]
Which was confirmed by Jens Axboe <axboe@suse.de>:
[QUOTE]
For ide-cd, it tends do only end the first part of the request on a
medium error. So you may see a lot of repeats :/
[/QUOTE]
With this patch, retries are expected to be reduced from, say, 256, to 5.
[akpm@osdl.org: cleanups]
Signed-off-by: Wu Fengguang <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
David Woodhouse [Sun, 25 Jun 2006 12:48:41 +0000 (05:48 -0700)]
[PATCH] R3964: fix GFP_KERNEL allocations in timer function
In the error case, add_msg() gets called from timer functions, so should
be using GFP_ATOMIC instead of GFP_KERNEL.
Ref: http://bugzilla.kernel.org/show_bug.cgi?id=6659. Thanks to Christian
Werner <chw@ch-werner.de> for reporting, and for the initial fix.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:40 +0000 (05:48 -0700)]
[PATCH] advansys section fixes
Priority: not critical.
Mark 3 functions __init. Saves a little memory.
This makes these functions' calls to AdvWaitEEPCmd() (which is __init)
be clean (i.e., eliminates text -> init -> text call chain).
Fix multiple section mismatch warnings:
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet3550EEPConfig' (at offset 0x7a22) and 'AdvSet38C0800EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet3550EEPConfig' (at offset 0x7a4e) and 'AdvSet38C0800EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet3550EEPConfig' (at offset 0x7a79) and 'AdvSet38C0800EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet3550EEPConfig' (at offset 0x7aa2) and 'AdvSet38C0800EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet3550EEPConfig' (at offset 0x7abb) and 'AdvSet38C0800EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C0800EEPConfig' (at offset 0x7ae0) and 'AdvSet38C1600EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C0800EEPConfig' (at offset 0x7b0c) and 'AdvSet38C1600EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C0800EEPConfig' (at offset 0x7b37) and 'AdvSet38C1600EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C0800EEPConfig' (at offset 0x7b60) and 'AdvSet38C1600EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C0800EEPConfig' (at offset 0x7b79) and 'AdvSet38C1600EEPConfig'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C1600EEPConfig' (at offset 0x7b9e) and 'AdvExeScsiQueue'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C1600EEPConfig' (at offset 0x7bca) and 'AdvExeScsiQueue'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C1600EEPConfig' (at offset 0x7bf5) and 'AdvExeScsiQueue'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C1600EEPConfig' (at offset 0x7c1e) and 'AdvExeScsiQueue'
WARNING: drivers/scsi/advansys.o - Section mismatch: reference to .init.text: from .text between 'AdvSet38C1600EEPConfig' (at offset 0x7c37) and 'AdvExeScsiQueue'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:39 +0000 (05:48 -0700)]
[PATCH] char/ip2: more section fixes (replacement)
Priority: tossup.
In theory some of these (previously) __init functions could be called
after init, but that problem has not been observed AFAIK.
There were 2 cases of cleanup_module() (module_exit) calling __init
functions (clear_requested_irq() & have_requested_irq()).
These are more serious, but still not observed AFAIK.
Fix sections mismatch:
WARNING: drivers/char/ip2/ip2main.o - Section mismatch: reference to .init.text: from .text between 'cleanup_module' (at offset 0x228b) and 'ip2_loadmain'
WARNING: drivers/char/ip2/ip2main.o - Section mismatch: reference to .init.text: from .text between 'cleanup_module' (at offset 0x22ae) and 'ip2_loadmain'
WARNING: drivers/char/ip2/ip2main.o - Section mismatch: reference to .init.text: from .text between 'ip2_loadmain' (at offset 0x2501) and 'set_irq'
WARNING: drivers/char/ip2/ip2main.o - Section mismatch: reference to .init.text: from .text between 'ip2_loadmain' (at offset 0x25de) and 'set_irq'
WARNING: drivers/char/ip2/ip2main.o - Section mismatch: reference to .init.text: from .text between 'ip2_loadmain' (at offset 0x2698) and 'set_irq'
WARNING: drivers/char/ip2/ip2main.o - Section mismatch: reference to .init.text: from .text between 'ip2_loadmain' (at offset 0x2922) and 'set_irq'
WARNING: drivers/char/ip2/ip2main.o - Section mismatch: reference to .init.text: from .text between 'ip2_loadmain' (at offset 0x299e) and 'set_irq'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:38 +0000 (05:48 -0700)]
[PATCH] cdrom/mcdx: section fixes
Priority: not critical.
Make __mcdx_init() __init and static. Saves a little memory.
Fix section mismatch warning and make the function static while there:
WARNING: drivers/cdrom/mcdx.o - Section mismatch: reference to .init.text: from .text between 'init_module' (at offset 0x8be) and 'mcdx_transfer'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:38 +0000 (05:48 -0700)]
[PATCH] trident fb section fixes
Priority: not critical.
Change 3 functions from __init to __devinit.
Could be an init/probe problem in theory, but not observed, so not
high priority IMO.
Fix section mismatch warnings:
WARNING: drivers/video/tridentfb.o - Section mismatch: reference to .init.text: from .text between 'trident_pci_probe' (at offset 0x1aad) and 'trident_pci_remove'
WARNING: drivers/video/tridentfb.o - Section mismatch: reference to .init.text: from .text between 'trident_pci_probe' (at offset 0x1b22) and 'trident_pci_remove'
WARNING: drivers/video/tridentfb.o - Section mismatch: reference to .init.text: from .text between 'trident_pci_probe' (at offset 0x1b31) and 'trident_pci_remove'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:37 +0000 (05:48 -0700)]
[PATCH] wan/sdla section fixes
netdev->set_config can be called at any time, so these references
to __initdata would be a real problem.
However, problem has not been observed AFAIK.
Fix section mismatch warnings:
WARNING: drivers/net/wan/sdla.o - Section mismatch: reference to .init.data: from .text between 'sdla_set_config' (at offset 0x1b8e) and 'sdla_stats'
WARNING: drivers/net/wan/sdla.o - Section mismatch: reference to .init.data: from .text between 'sdla_set_config' (at offset 0x1e76) and 'sdla_stats'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Peter Staubach [Sun, 25 Jun 2006 12:48:36 +0000 (05:48 -0700)]
[PATCH] ftruncate does not always update m/ctime
In the course of trying to track down a bug where a file mtime was not
being updated correctly, it was discovered that the m/ctime updates were
not quite being handled correctly for ftruncate() calls.
Quoth SUSv3:
open(2):
If O_TRUNC is set and the file did previously exist, upon
successful completion, open() shall mark for update the st_ctime
and st_mtime fields of the file.
truncate(2):
Upon successful completion, if the file size is changed, this
function shall mark for update the st_ctime and st_mtime fields
of the file, and the S_ISUID and S_ISGID bits of the file mode
may be cleared.
ftruncate(2):
Upon successful completion, if fildes refers to a regular file,
the ftruncate() function shall mark for update the st_ctime and
st_mtime fields of the file and the S_ISUID and S_ISGID bits of
the file mode may be cleared. If the ftruncate() function is
unsuccessful, the file is unaffected.
The open(O_TRUNC) and truncate cases were being handled correctly, but the
ftruncate case was being handled like the truncate case. The semantics of
truncate and ftruncate don't quite match, so ftruncate needs to be handled
slightly differently.
The attached patch addresses this issue for ftruncate(2).
My thanx to Stephen Tweedie and Trond Myklebust for their help in
understanding the situation and semantics.
Signed-off-by: Peter Staubach <staubach@redhat.com>
Cc: "Stephen C. Tweedie" <sct@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
akpm@osdl.org [Sun, 25 Jun 2006 12:48:35 +0000 (05:48 -0700)]
[PATCH] N32 sigset and __COMPAT_ENDIAN_SWAP__
I'm testing glibc on MIPS64, little-endian, N32, O32 and N64 multilibs.
Among the NPTL test failures seen are some arising from sigsuspend problems
for N32: it blocks the wrong signals, so SIGCANCEL (SIGRTMIN) is blocked
despite glibc's carefully excluding it from sets of signals to block.
Specifically, testing suggests it blocks signal N^32 instead of signal N,
so (in the example tested) blocking SIGUSR1 (17) blocks signal 49 instead.
glibc's sigset_t uses an array of unsigned long, as does the kernel.
In both cases, signal N+1 is represented as
(1UL << (N % (8 * sizeof (unsigned long)))) in word number
(N / (8 * sizeof (unsigned long))).
Thus the N32 glibc uses an array of 32-bit words and the N64 kernel uses an
array of 64-bit words. For little-endian, the layout is the same, with
signals 1-32 in the first 4 bytes, signals 33-64 in the second, etc.; for
big-endian, userspace has that layout while in the kernel each 8 bytes have
the two halves swapped from the userspace layout.
The N32 sigsuspend syscall uses sigset_from_compat to convert the userspace
sigset to kernel format. If __COMPAT_ENDIAN_SWAP__ is *not* set, this uses
logic of the form
set->sig[0] = compat->sig[0] | (((long)compat->sig[1]) << 32 )
to convert the userspace sigset to a kernel one. This looks correct to me
for both big and little endian, given that in userspace compat->sig[1] will
represent signals 33-64, and so will the high 32 bits of set->sig[0] in the
kernel. If however __COMPAT_ENDIAN_SWAP__ *is* set, as it is for
__MIPSEL__, it uses
set->sig[0] = compat->sig[1] | (((long)compat->sig[0]) << 32 );
which seems incorrect for both big and little endian, and would
explain the observed symptoms.
This code is the only use of __COMPAT_ENDIAN_SWAP__, so if incorrect
then that macro serves no purpose, in which case something like the
following patch would seem appropriate to remove it.
Signed-off-by: Joseph Myers <joseph@codesourcery.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Johann Lombardi [Sun, 25 Jun 2006 12:48:33 +0000 (05:48 -0700)]
[PATCH] ext3: cleanup dead code in ext3_add_entry()
The variables nlen and rlen are defined/initialized but not used in
ext3_add_entry().
Signed-off-by: Johann Lombardi <johann.lombardi@bull.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Florin Malita [Sun, 25 Jun 2006 12:48:31 +0000 (05:48 -0700)]
[PATCH] 9pfs: missing result check in v9fs_vfs_readlink() and v9fs_vfs_link()
__getname() may fail and return NULL (as pointed out by Coverity 437 &
1220).
Signed-off-by: Florin Malita <fmalita@gmail.com>
Acked-by: Eric Van Hensbergen <ericvh@gmail.com>
Cc: <rminnich@lanl.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Stephen Hemminger [Sun, 25 Jun 2006 12:48:31 +0000 (05:48 -0700)]
[PATCH] Get rid of /proc/sys/proc
The table is empty, why does it still exist?
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Randy Dunlap [Sun, 25 Jun 2006 12:48:29 +0000 (05:48 -0700)]
[PATCH] checkstack: print module names
Finding "init_module" high stack usage problems is challenging when there
are over 1600 "init_module" functions in the kernel tree, so make
checkstack.pl print out the filename where the stack usage occurs. This is
useful for code built as loadable modules.
For built-in code, it just prints the kernel image file name, like
"vmlinux". Examples:
(before patch:)
0x0000000d callback: 1928
0xffffffff81678c09 huft_build: 1560
0x0018 init_module: 1512
(after patch:)
0x0000000d callback [divacapi]: 1928
0xffffffff81678c09 huft_build [vmlinux]: 1560
0x0018 init_module [hdaps]: 1512
Also change one if-series to use elsif to cut down on unneeded tests.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Joern Engel <joern@wh.fh-wedel.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Atsushi Nemoto [Sun, 25 Jun 2006 12:48:29 +0000 (05:48 -0700)]
[PATCH] RTC: add rtc-ds1742 driver
Add an RTC driver for the Dallas DS1742 RTC chip.
[akpm@osdl.org: cleanups, compile fix]
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Atsushi Nemoto [Sun, 25 Jun 2006 12:48:28 +0000 (05:48 -0700)]
[PATCH] RTC: add rtc-ds1553 driver
Add an RTC driver for the Dallas DS1553 RTC chip.
[akpm@osdl.org: cleanups, compile fix]
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Morton [Sun, 25 Jun 2006 12:48:27 +0000 (05:48 -0700)]
[PATCH] at91rm9200-rtc-driver-tidy
- whitespace fixes (80-col display)
- one unneeded cast of void*
Cc: Andrew Victor <andrew@sanpeople.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Victor [Sun, 25 Jun 2006 12:48:27 +0000 (05:48 -0700)]
[PATCH] AT91RM9200 RTC driver
Adds support for the RTC integrated in the Atmel AT91RM9200 SoC.
Driver was originally written for 2.4 by Rick Bronson. Then converted to
2.6 ARM RTC API by Steven Scholz. Now converted to the RTC class model.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andrew Victor [Sun, 25 Jun 2006 12:48:25 +0000 (05:48 -0700)]
[PATCH] RTC: Add rtc_year_days() to calculate tm_yday
RTC: Add exported function rtc_year_days() to calculate the tm_yday value.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Raphael Assenat [Sun, 25 Jun 2006 12:48:24 +0000 (05:48 -0700)]
[PATCH] Add v3020 RTC support
This patch adds support for the v3020 RTC from EM Microelectronic.
The v3020 RTC is designed to be connected on a bus using only one data bit.
Since any data bit may be used, it is necessary to specify this to the
driver by passing a struct v3020_platform_data pointer (see
include/linux/rtc-v3020.h) to the driver.
Part of the following code comes from the kernel patchs produced by
Compulab for their products. The original file (available here:
http://raph.people.8d.com/misc/emv3020.c) was released under the terms of
the GPL license.
[akpm@osdl.org: cleanups]
Signed-off-by: Raphael Assenat <raph@raphnet.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jean Delvare [Sun, 25 Jun 2006 12:48:23 +0000 (05:48 -0700)]
[PATCH] rtc: small documentation update
Rtc driver documentation update
* Mention the max-user-freq control file.
* Add missing header in example code.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Raphael Assenat [Sun, 25 Jun 2006 12:48:23 +0000 (05:48 -0700)]
[PATCH] Add max6902 RTC support
Add support for the MAX6902 SPI RTC chip. Tested on a pxa2xx cpu.
The compulab code comes from the kernel patch the produce for their
cn-x255 board. (inside a zip file on the
http://www.compulab.co.il/x255/html/x255-developer.htm)
The original file (drivers/char/max6902.c) was GPL, which is of course
an appropriate licence:
/*
* max6902.c
*
* Driver for MAX6902 RTC
*
* Copyright (C) 2004 Compulab Ltd.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*
*/
For reference, you can get the original file here:
http://raph.people.8d.com/misc/max6902.c
[akpm@osdl.org: cleanups]
Signed-off-by: Raphael Assenat <raph@raphnet.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Alessandro Zummo [Sun, 25 Jun 2006 12:48:20 +0000 (05:48 -0700)]
[PATCH] rtc subsystem: add capability checks
Centralize CAP_SYS_XXX checks to avoid duplicate code and missing checks in
the drivers.
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Alessandro Zummo [Sun, 25 Jun 2006 12:48:20 +0000 (05:48 -0700)]
[PATCH] rtc subsystem, fix capability checks in kernel interface
Remove commented capability checks and add some others.
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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