Karol Kozimor [Tue, 27 Apr 2004 20:41:56 +0000 (16:41 -0400)]
[PATCH] acpi4asus 0.28 (Karol 'sziwan' Kozimor)
- Added support for Samsung P30
- Fixed an oops triggered by non-standard hardware (Samsung P30)
- Added support for L4400L and M6800N
The patch also removes some superfluous data. It doesn't include the
copy_from_user() conversion, it will be released as a separate patch.
Len Brown [Fri, 23 Apr 2004 09:15:31 +0000 (05:15 -0400)]
[ACPI] workaround for nForce2 BIOS bug: XT-PIC timer in IOAPIC mode
"acpi_skip_timer_override" boot parameter
dmi_scan for common platforms, may be replaced with PCI-ID in future.
http://bugzilla.kernel.org/show_bug.cgi?id=1203
Andrew Morton [Thu, 22 Apr 2004 23:32:08 +0000 (16:32 -0700)]
[PATCH] writeback livelock fix
If a filesystem's ->writepage implementation repeatedly refuses to write the
page (it keeps on redirtying it instead) (reiserfs seems to do this) then the
writeback logic can get stuck repeately trying to write the same page.
Fix that up by correctly setting wbc->pages_skipped, to tell the writeback
logic that things aren't working out.
Linda Xie [Thu, 22 Apr 2004 08:11:12 +0000 (01:11 -0700)]
[PATCH] symlink doesn't support kobj name > 20 charaters (KOBJ_NAME_LEN)
Since symlink.c uses "name" field of a kobj when it calculates the
length, it gets a wrong value if the kobj's name has more than 20
charathers. A correct way to do that is to call kobject_name(kobj)
instead of using kobj->name directly.
this patch (2.4 & 2.6) fixes a bug about the timeout value. The formula
used to calculate jiffies from timeout is wrong.
The new formula is ok and takes care of integer computation/rounding.
There is the same bug in the tiglusb.c module which will be fixed by another
patch.
Jan Capek [Thu, 22 Apr 2004 06:53:33 +0000 (23:53 -0700)]
[PATCH] USB: ftdi patch fixup
I just checked out the latest 2.6.6-rc1-mm1 to see that the ID patch for
ftdi has applied cleanly, but apparently someone was faster and in the
combined ID table our ID's were missing.
Most probably the patch program got confused and applied the hung at wrong
spot..
Attached is a patch that places that 2 lines in the correct spot.
this patch (cumulative; 2.4 & 2.6) fixes another bug in the tiglusb
driver. The formula used to calculate jiffies from timeout is wrong.
The new formula is ok and takes care of integer computation/rounding.
This is the same kind of bug than in the tipar char driver.
Warnings aren't terribly important in and of themselves, but there
isn't really much the warning tells us to do here, so it would appear
that caving in to the compiler is the thing to do for now.
David Brownell [Thu, 22 Apr 2004 06:43:39 +0000 (23:43 -0700)]
[PATCH] USB: rndis gadget driver updates
Various build fixes: 64bit (Andrew Morton), static linking,
broken on big-endian, etc.
Tighten up the integration with the main "ether" driver, so
state transitions and host ethernet addresses are shared too.
Add missing spinlock calls around RNDIS command outcall,
fix GET_INTERFACE issue, host mustn't clobber netdev flags.
Andrew Morton [Thu, 22 Apr 2004 06:38:16 +0000 (23:38 -0700)]
[PATCH] ppc64: add some iSeries proc entries
From: Stephen Rothwell <sfr@canb.auug.org.au>
This patch just adds some proc entries for the virtual tape and cdrom
drivers to allow mapping between linux devices and OS/400 ones. This is
expected by existing users and there is no other way to do this
translation.
Andrew Morton [Thu, 22 Apr 2004 06:37:12 +0000 (23:37 -0700)]
[PATCH] Merge missing MIPS i8042 bits
From: Ralf Baechle <ralf@linux-mips.org>
- Add HPC3 PS/2 driver bits for SGI IP22 aka Indy
- Add Mace PS/2 driver bits for SGI IP32 aka O2
- Add R4030 PS/2 driver bits for Jazz family
- Don't register I/O ports where we're using the I/O port memory window
to access the i8042 registers
Andrew Morton [Thu, 22 Apr 2004 06:36:07 +0000 (23:36 -0700)]
[PATCH] EDD: set sysfs attr owner field
From: Matt Domsch <Matt_Domsch@dell.com>
The patch below from Michael E. Brown properly sets the owner field of a
sysfs attribute. Without this patch, it is possible to crash the kernel with
a simultaneous insmod/rmmod while reading files exported by the module.
Andrew Morton [Thu, 22 Apr 2004 06:35:40 +0000 (23:35 -0700)]
[PATCH] s390: zfcp adapter fixes.
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
zfcp host adapter changes:
- Fix error recovery stall in case of unavailable nameserver.
- Reset host_scribble field to NULL in scsi_cmd.
- Remove request debug code.
Andrew Morton [Thu, 22 Apr 2004 06:35:26 +0000 (23:35 -0700)]
[PATCH] s390: dasd device driver.
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
dasd device driver changes:
- Initialize open_count with -1 to account for blkdev_open in
dasd_scan_partitions.
- Introduce USE_ERP request flag to selectivly switch off error
recovery for reserve, release & unconditional reserve ioctls.
Andrew Morton [Thu, 22 Apr 2004 06:34:46 +0000 (23:34 -0700)]
[PATCH] s390: common i/o layer.
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Common i/o layer changes:
- Quiesce active subchannels for lpar reipl.
- Delete timer after reception of interrupt for kill on timeout.
- Cleanup some comments in qdio.
Andrew Morton [Thu, 22 Apr 2004 06:34:32 +0000 (23:34 -0700)]
[PATCH] s390: core s390.
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
s390 core changes:
- Fix race in do_call_softirq in regard to kernel preemption.
- Fix typo in compat mq system call wrappers.
- Add s390 to Kconfig for AUDITSYSCALL.
- Redefine TASK_SIZE to TASK31_SIZE for compilation of binfmt_elf32.
- Use correct error value for sys32_ipc when called with an invalid number.
- New default configuration.
Andrew Morton [Thu, 22 Apr 2004 06:34:19 +0000 (23:34 -0700)]
[PATCH] ppc64: iSeries virtual cdrom module fix
From: Stephen Rothwell <sfr@canb.auug.org.au>
This patch fixes loading viocd as a module. It would oops because I was
passing the address of a static buffer to dma_map_single and when loaded as
a module, this address is not valid for that purpose.
There are a couple of simple cleanups here as well.
Alan Stern [Thu, 22 Apr 2004 06:03:22 +0000 (23:03 -0700)]
[PATCH] USB: Important bugfix for UHCI list management code
A major bug in the UHCI driver turned up recently. Thanks to a lot of
help from Simone Gotti it was identified and fixed late last week. It
turned out to be entirely my fault -- a previous patch had introduced two
(!) errors. (A combination of carelessness and a nasty thinko, and
somehow it passed the regression tests...)
Anyway, it's entirely possible that many of the problems people have been
seeing are caused by that bug. This patch is the solution.
David S. Miller [Wed, 21 Apr 2004 16:10:52 +0000 (09:10 -0700)]
[TCP]: Add vegas congestion avoidance support.
A forward port of an old 2.3.x kernel hack done
years ago. I (DaveM) did the first rough port,
Stephen Hemminger actually cleaned it up and
made it usable.
Dave Jones [Wed, 21 Apr 2004 20:49:59 +0000 (21:49 +0100)]
[CPUFREQ] Fix security hole in proc handler.
Brad Spengler <spender@grsecurity.net> found an exploitable bug in the proc handler
of cpufreq, where a user-supplied unsigned int is cast to a signed int and then
passed on to copy_[to|from]_user() allowing arbitary amounts of memory to be written
(root only thankfully), or read (as any user).
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0228 to this issue.
Dave Jones [Wed, 21 Apr 2004 20:18:57 +0000 (21:18 +0100)]
[CPUFREQ] Make an educated guess at the current P-state in the ACPI driver.
One big limitation of the ACPI specification is that it's impossible to
detect the current P-State by reading from ACPI-defined registers. And the
CPU isn't always at P0 when the system boots. So, try to "guess" the current
P-State by analyzing cpu_khz.
Dave Jones [Wed, 21 Apr 2004 18:58:29 +0000 (19:58 +0100)]
[CPUFREQ] Remove redundant part of powernow-k7 module parm
If used as a bootparam, this would've become powernow-k7.powernow_acpi_force which looks silly.
[PATCH] removal of MOD_{INC,DEC}_USE_COUNT in ide-cs.c
From: Pavel Roskin <proski@gnu.org>
The "ide-cs" module cannot be unloaded because it uses obsolete
MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros. In fact, they are not
needed in ide-cs.c in 2.6 kernels. The generic PCMCIA code already
increases use count for every device served by the driver, so it's
impossible to unload the ide-cs driver while it's in use.
I was told that the removal of IDE interfaces may be unsafe in 2.6
kernels. However, MOD_INC_USE_COUNT only prevents removal of the module,
not the interface. It's also the first obstacle, albeit a trivial one,
for anybody debugging those problems (i.e. loading a modified module
requires "rmmod -f" or reboot to unload the old version).
[PATCH] ide-disk.c: fix for IDE CF card ejection with devfs
From: Pavel Roskin <proski@gnu.org>
If I eject IDE CompactFlash card, I get a stack dump from
devfs_remove() because ide/host2/bus0/target0/lun0 doesn't exist.
After del_gendisk() is called from idedisk_cleanup() drive->devfs_name refers
to a non-existent directory and should be erased, so that ide_unregister()
doesn't try to remove that directory again.
Andrew Morton [Wed, 21 Apr 2004 00:44:58 +0000 (17:44 -0700)]
[PATCH] loop_set_fd() sendfile check fix
From: Yury Umanets <torque@ukrpost.net>
I have found small inconsistency in loop_set_fd(). It checks if
->sendfile() is implemented for passed block device file. But in fact,
loop back device driver never calls it. It uses ->sendfile() from backing
store file.
Andrew Morton [Wed, 21 Apr 2004 00:44:44 +0000 (17:44 -0700)]
[PATCH] i386 hugetlb tlb correction
From: William Lee Irwin III <wli@holomorphy.com>
i386 does hardware interpretation of pagetables, so pte_clear() can't be
used on present ptes, as it sets the upper half of the hugepte prior to
setting the lower half (which includes the valid bit). i.e. there is a
window where having a hugepage mapped at 56GB and doing pte_clear() in
unmap_hugepage_range() allows other threads of the process to see a
hugepage at 0 in place of the original hugepage at 56GB.
This patch corrects the situation by using ptep_get_and_clear(), which
clears the lower word of the pte prior to clearing the upper word.
There is another nasty where huge_page_release() needs to wait for TLB
flushes before returning the hugepages to the free pool, analogous to the
issue tlb_remove_page() and tlb_flush_mm() repair.
Andrew Morton [Wed, 21 Apr 2004 00:44:05 +0000 (17:44 -0700)]
[PATCH] selinux: remove hardcoded policy assumption from get_user_sids() logic
From: Stephen Smalley <sds@epoch.ncsc.mil>
This patch removes a hardcoded policy assumption from the get_user_sids logic
in the SELinux module that was preventing it from returning contexts that had
the same type as the caller even if the policy allowed such a transition. The
assumption is not valid for all policies, and can be handled via policy
configuration and userspace rather than hardcoding it in the module logic.
Andrew Morton [Wed, 21 Apr 2004 00:43:53 +0000 (17:43 -0700)]
[PATCH] selinux: add runtime disable
From: Stephen Smalley <sds@epoch.ncsc.mil>
This patch adds a kernel configuration option that enables writing to a new
selinuxfs node 'disable' that allows SELinux to be disabled at runtime prior
to initial policy load. SELinux will then remain disabled until next boot.
This option is similar to the selinux=0 boot parameter, but is to support
runtime disabling of SELinux, e.g. from /sbin/init, for portability across
platforms where boot parameters are difficult to employ (based on feedback by
Jeremy Katz).
Andrew Morton [Wed, 21 Apr 2004 00:43:42 +0000 (17:43 -0700)]
[PATCH] selinux: change context_to_sid handling for no-policy case
From: Stephen Smalley <sds@epoch.ncsc.mil>
This patch changes the behavior of security_context_to_sid in the no-policy
case so that it simply accepts all contexts and maps them to the kernel SID
rather than rejecting anything other than an initial SID. The change avoids
error conditions when using SELinux in permissive/no-policy mode, so that any
file contexts left on disk from prior use of SELinux with a policy will not
cause an error when they are looked up and userspace attempts to set contexts
can succeed.
Andrew Morton [Wed, 21 Apr 2004 00:43:05 +0000 (17:43 -0700)]
[PATCH] lockfs - xfs bits
From: Christoph Hellwig <hch@lst.de>
Remove all the code now in the VFS, make XFS's freeze ioctls use the new
infastructure and reorganize some code.
This code needs some work so the source files shared with 2.4 aren't
exposed to the new VFS interfaces directly. You'll get an update once this
has been discussed with the other XFS developers and is implemented. Note
that the current patch works fine and I wouldn't complain if it gets into
Linus' tree as-is.
Andrew Morton [Wed, 21 Apr 2004 00:42:39 +0000 (17:42 -0700)]
[PATCH] lockfs - vfs bits
From: Christoph Hellwig <hch@lst.de>
These are the generic lockfs bits. Basically it takes the XFS freezing
statemachine into the VFS. It's all behind the kernel-doc documented
freeze_bdev and thaw_bdev interfaces.
Andrew Morton [Wed, 21 Apr 2004 00:42:28 +0000 (17:42 -0700)]
[PATCH] remove amd7xx_tco
From: Zwane Mwaikambo <zwane@linuxpower.ca>
We've had trouble with this driver, it appears to work but the hardware
never does the final reboot. I have yet to come across someone with a
board which works and don't have personal access to one. So how about
scrapping the whole thing.
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