13 Feb, 2007
40 commits
-
This patch adds the line discipline based driver for the Gigaset M101
wireless RS232 adapter. It also improves the documentation a bit.Signed-off-by: Tilman Schmidt
Signed-off-by: Hansjoerg Lipp
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Convert:
BOOL -> bool
FALSE -> false
TRUE -> trueChange a variable ('mContinue') to boolean from char, since it is used
as boolean.Signed-off-by: Richard Knutsson
Acked-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Use timer macros to set function and data members and to modify
expiration time.
- Use DEFINE_TIMER for global timers and do not init them at run-time in
these cases.
- del_timer_sync is common in most cases -- we want to wait for timer
function if it's still running.Signed-off-by: Jiri Slaby
Cc: Dave Airlie
Cc: David Woodhouse
Cc: Dominik Brodowski
Cc: Alessandro Zummo
Cc: Paul Fulghum
Cc: Kylene Jo Hall
Cc: Wim Van Sebroeck
Acked-by: Dmitry Torokhov (Input bits)
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
specialix, isr have 2 params
pt_regs are no longer the third parameter of isr, call sx_interrupt without
it.Signed-off-by: Jiri Slaby
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change __init to __devinit in rtc drivers' probe functions.
Resolves MODPOST warnings:
WARNING: drivers/rtc/rtc-ds1553.o - Section mismatch: reference to
.init.text:ds1553_rtc_probe from .data.rel between 'ds1553_rtc_driver' (at
offset 0x0) and 'ds1553_nvram_attr'
WARNING: drivers/rtc/rtc-ds1742.o - Section mismatch: reference to
.init.text:ds1742_rtc_probe from .data.rel between 'ds1742_rtc_driver' (at
offset 0x0) and 'ds1742_nvram_attr'Signed-off-by: Prarit Bhargava
Cc: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Was ufs_fs.h purposefully not exported to userspace or did it just slip
through the cracks ? assuming the latter scenario, the attached patch touches
up the relationship between ufs_fs.h and its sub headers (like ufs_fs_sb.h) so
that we can export it ... the silo bootloader takes advantage of this header
for example.Signed-off-by: Mike Frysinger
Cc: Evgeniy Dushistov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
close_files() can sometimes take long enough to trigger the soft lockup
detector.Cc: Eric Dumazet
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Reduce the number of kernel messages the Gigaset drivers produce in case of an
excessively long device response, from one per character exceeding the limit
to one per overlong message.Signed-off-by: Tilman Schmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Do not lock the cardstate structure mutex earlier than necessary.
Signed-off-by: Tilman Schmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
oprofile hunting showed a stall in rw_verify_area(), because of triple
indirection and potential cache misses.
(file->f_path.dentry->d_inode->i_flock)By moving initialization of 'struct inode' pointer before the pos/count
sanity tests, we allow the compiler and processor to perform two loads by
anticipation, reducing stall, without prefetch() hints. Even x86 arch has
enough registers to not use temporary variables and not increase text size.I validated this patch running a bench and studied oprofile changes, and
absolute perf of the test program.Results of my epoll_pipe_bench (source available on request) on a Pentium-M
1.6 GHz machineBefore :
# ./epoll_pipe_bench -l 30 -t 20
Avg: 436089 evts/sec read_count=8843037 write_count=8843040 21.218390 samples
per call
(best value out of 10 runs)After :
# ./epoll_pipe_bench -l 30 -t 20
Avg: 470980 evts/sec read_count=9549871 write_count=9549894 21.216694 samples
per call
(best value out of 10 runs)oprofile CPU_CLK_UNHALTED events gave a reduction from 5.3401 % to 2.5851 %
for the rw_verify_area() function.Signed-off-by: Eric Dumazet
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Need to export com20020 symbols for com20020_cs also.
WARNING: "com20020_found" [drivers/net/pcmcia/com20020_cs.ko] undefined!
WARNING: "com20020_check" [drivers/net/pcmcia/com20020_cs.ko] undefined!Signed-off-by: Randy Dunlap
Cc: Esben Nielsen
Cc: Jeff Garzik
Cc: Dominik Brodowski
Cc: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
3117df0453828bd045c16244e6f50e5714667a8a causes this:
In file included from arch/s390/kernel/early.c:13:
include/linux/lockdep.h:300: warning:
"struct task_struct" declared inside parameter list
include/linux/lockdep.h:300:
warning: its scope is only this definition or
declaration, which is probably not what you wantAcked-by: Ingo Molnar
Cc: Martin Schwidefsky
Signed-off-by: Heiko Carstens
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I've noticed that the boot options are not correct for in the documentation
for kdump. The "init" keyword is not necessary, and causes a kernel panic
when booting with an initrd on Fedora 5.[horms@verge.net.au: put original comment with the latest version of the patch]
Signed-off-by: Judith Lebzeelter
Acked-by: Vivek Goyal
Signed-off-by: Simon Horman
Cc: "Eric W. Biederman"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Optimise swiotlb.c for size.
text data bss dec hex filename
5009 89 64 5162 142a lib/swiotlb.o-before
4666 89 64 4819 12d3 lib/swiotlb.o-afterFor some reason my gcc (4.0.2) doesn't want to tailcall these things.
swiotlb_sync_sg_for_device:
pushq %rbp #
movl $1, %r8d #,
movq %rsp, %rbp #,
call swiotlb_sync_sg #
leave
ret
.size swiotlb_sync_sg_for_device, .-swiotlb_sync_sg_for_device
.section .text.swiotlb_sync_sg_for_cpu,"ax",@progbits
.globl swiotlb_sync_sg_for_cpu
.type swiotlb_sync_sg_for_cpu, @function
swiotlb_sync_sg_for_cpu:
pushq %rbp #
xorl %r8d, %r8d #
movq %rsp, %rbp #,
call swiotlb_sync_sg #
leave
retCc: Jan Beulich
Cc: Andi Kleen
Cc: "Luck, Tony"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Access to chip-internal registers should always be native-endian. This is
especially important for AVR32 since it's a big-endian architecture and the
non-raw readl() and writel() macros are defined to do little-endian
accesses.Signed-off-by: Haavard Skinnemoen
Acked-by: Andrew Victor
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
While compiling my code with -Wconversion using gcc-trunk, I always get a
bunch of warrning from headers, here is fix for them:__getblk is alawys called with unsigned argument,
but it takes signed, the same story with __bread,__breadahead and so on.Signed-off-by: Tomasz Kvarsin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The problem we were assuming that current->nsproxy->ipc_ns would never
change while someone has our file in /proc/sysvipc/ file open. Given that
this can change with both unshare and by passing the file descriptor to
another process that assumption is occasionally wrong.Therefore this patch causes /proc/sysvipc/* to cache the namespace and
increment it's count when we open the file and to decrement the count when
we close the file, ensuring consistent operation with no surprises.Signed-off-by: Eric W. Biederman
Cc: Serge E. Hallyn
Cc: Herbert Poetzl
Cc: Kirill Korotaev
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use ARRAY_SIZE macro already defined in kernel.h
Signed-off-by: Ahmed S. Darwish
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use ARRAY_SIZE macro already defined in kernel.h
Signed-off-by: Ahmed S. Darwish
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use ARRAY_SIZE macro already defined in kernel.h
Signed-off-by: Ahmed S. Darwish
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A patch to use ARRAY_SIZE macro already defined in kernel.h
Signed-off-by: Ahmed S. Darwish
Acked-by: Evgeniy Polyakov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The problem is various drivers legally validly and sensibly try to claim
IRQs but the kernel insists on vomiting forth a giant irrelevant debugging
spew when the types clash.Edit kernel/irq/manage.c go down to mismatch: in setup_irq() and ifdef out
the if clause that checks for mismatches. It'll then just do the right
thing and work sanely.For the current -mm kernel this will do the trick (and moves it into shared
irq debugging as in debug mode the info spew is useful). I've had a
variant of this in my private tree for some time as I got fed up on the
mess on boxes where old legacy IRQs get reused.Signed-off-by: Alan Cox
Cc: Arjan van de Ven
Cc: Ingo Molnar
Cc: David Woodhouse
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Drivers registering IRQ handlers with SA_SHIRQ really ought to be able to
handle an interrupt happening before request_irq() returns. They also
ought to be able to handle an interrupt happening during the start of their
call to free_irq(). Let's test that hypothesis....[bunk@stusta.de: Kconfig fixes]
Signed-off-by: David Woodhouse
Cc: Arjan van de Ven
Signed-off-by: Jesper Juhl
Signed-off-by: Ingo Molnar
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix for inotify read bug (bugzilla.kernel.org #6999)
Problem Description:
When reading from an inotify device with an insufficient sized buffer, read(2)
will return 0 with no errno set. This is because of an logically incorrect
action from the user program thus should return an more logical value. My
suggestion is return -EINVAL as for bind(2).This patch is based on the proposal from Ryan , and
feedback from John McCutchan .Return -EINVAL if we have not passed in enough buffer space to read a single
inotify event, rather than 0 which indicates that there is nothing to read.Signed-off-by: Nick Piggin
Acked-by: "John McCutchan"
Cc: Ryan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Iterate over sb->s_inodes instead of sb->s_files in add_dquot_ref. This
reduces list search and lock hold time aswell as getting rid of one of the
few uses of file_list_lock which Ingo identified as a scalability problem.Previously we called dq_op->initialize for every inode handing of a
writeable file that wasn't initialized before. Now we're calling it for
every inode that has a non-zero i_writecount, aka a writeable file
descriptor refering to it.Thanks a lot to Jan Kara for running this patch through his quota test
harness.Signed-off-by: Christoph Hellwig
Signed-off-by: Jan Kara
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove_dquot_ref can move to dqout.c instead of beeing in inode.c under
#ifdef CONFIG_QUOTA. Also clean the resulting code up a tiny little bit by
testing sb->dq_op earlier - it's constant over a filesystems lifetime.Signed-off-by: Christoph Hellwig
Cc: Jan Kara
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The return value of scnprintf() never exceeds @size.
Signed-off-by: Martin Peschke
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch fixes the documentation of nfsroot to match NFS_DEF_FILE_IO_SIZE.
Or perhaps we need to change NFS_DEF_FILE_IO_SIZE to match the
documentation?Signed-off-by: Dan Aloni
Cc: "David S. Miller"
Cc: Trond Myklebust
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Cyclades no longer serves the 2 e-mails listed in MAINTAINERS. Remove them
and mark those entries as Orphaned.Signed-off-by: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Since quota.h declares a R/W semaphore, it should include rwsem.h
explicitly.Signed-off-by: Robert P. J. Day
Acked-by: Jan Kara
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove labs() since it is not used/needed.
Signed-off-by: Richard Knutsson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use pci_device_id struct instead of ushort array. Add MODULE_DEVICE_TABLE.
Signed-off-by: Jiri Slaby
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use more PCI_DEVICE macro
Signed-off-by: Jiri Slaby
Acked-by: Wim Van Sebroeck (alim7101_wdt.c part)
Cc: Michael Buesch
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Here is a bugfix to d_path.
First, when d_path() hits a lazily unmounted mount point, it tries to
prepend the name of the lazily unmounted dentry to the path name. It gets
this wrong, and also overwrites the slash that separates the name from the
following pathname component. This is demonstrated by the attached test
case, which prints "getcwd returned d_path-bugsubdir" with the bug. The
correct result would be "getcwd returned d_path-bug/subdir".It could be argued that the name of the root dentry should not be part of
the result of d_path in the first place. On the other hand, what the
unconnected namespace was once reachable as may provide some useful hints
to users, and so that seems okay.Second, it isn't always possible to tell from the __d_path result whether
the specified root and rootmnt (i.e., the chroot) was reached: lazy
unmounts of bind mounts will produce a path that does start with a
non-slash so we can tell from that, but other lazy unmounts will produce a
path that starts with a slash, just like "ordinary" paths.The attached patch cleans up __d_path() to fix the bug with overlapping
pathname components. It also adds a @fail_deleted argument, which allows
to get rid of some of the mess in sys_getcwd(). Grabbing the dcache_lock
can then also be moved into __d_path(). The patch also makes sure that
paths will only start with a slash for paths which are connected to the
root and rootmnt.The @fail_deleted argument could be added to d_path() as well: this would
allow callers to recognize deleted files, without having to resort to the
ambiguous check for the " (deleted)" string at the end of the pathnames.
This is not currently done, but it might be worthwhile.Signed-off-by: Andreas Gruenbacher
Cc: Neil Brown
Cc: Al Viro
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace the incorrect debugging check of "#ifdef NTFS_DEBUG" with
just "#ifdef DEBUG".Signed-off-by: Robert P. J. Day
Acked-by: Anton Altaparmakov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, dynamic
blockdev major allocation can hand out majors which LANANA has defined as
being for local/experimental use.Cc: Torben Mathiasen
Cc: Greg KH
Cc: Al Viro
Cc: Tomas Klas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, dynamic
chardev major allocation can hand out majors which LANANA has defined as being
for local/experimental use.Cc: Torben Mathiasen
Cc: Greg KH
Cc: Al Viro
Cc: Tomas Klas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Don't hide buffer_unwritten behind buffer_delay() and remove the hack that
clears unexpected buffer_unwritten() states now that it can't happen.Signed-off-by: Dave Chinner
Acked-by: Christoph Hellwig
Cc: Timothy Shimmin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently, XFS uses BH_PrivateStart for flagging unwritten extent state in a
bufferhead. Recently, I found the long standing mmap/unwritten extent
conversion bug, and it was to do with partial page invalidation not clearing
the unwritten flag from bufferheads attached to the page but beyond EOF. See
here for a full explaination:http://oss.sgi.com/archives/xfs/2006-12/msg00196.html
The solution I have checked into the XFS dev tree involves duplicating code
from block_invalidatepage to clear the unwritten flag from the bufferhead(s),
and then calling block_invalidatepage() to do the rest.Christoph suggested that this would be better solved by pushing the unwritten
flag into the common buffer head flags and just adding the call to
discard_buffer():http://oss.sgi.com/archives/xfs/2006-12/msg00239.html
The following patch makes BH_Unwritten a first class citizen.
Signed-off-by: Dave Chinner
Acked-by: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make mincore work for anon mappings, nonlinear, and migration entries.
Based on patch from Linus Torvalds .Signed-off-by: Nick Piggin
Acked-by: Hugh Dickins
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
