26 Mar, 2006
10 commits
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Convert mm/ to use the new kmem_cache_zalloc allocator.
Signed-off-by: Pekka Enberg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
As suggested by Eric Dumazet, optimize kzalloc() calls that pass a
compile-time constant size. Please note that the patch increases kernel
text slightly (~200 bytes for defconfig on x86).Signed-off-by: Pekka Enberg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Introduce a memory-zeroing variant of kmem_cache_alloc. The allocator
already exits in XFS and there are potential users for it so this patch
makes the allocator available for the general public.Signed-off-by: Pekka Enberg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Implement /proc/slab_allocators. It produces output like:
idr_layer_cache: 80 idr_pre_get+0x33/0x4e
buffer_head: 2555 alloc_buffer_head+0x20/0x75
mm_struct: 9 mm_alloc+0x1e/0x42
mm_struct: 20 dup_mm+0x36/0x370
vm_area_struct: 384 dup_mm+0x18f/0x370
vm_area_struct: 151 do_mmap_pgoff+0x2e0/0x7c3
vm_area_struct: 1 split_vma+0x5a/0x10e
vm_area_struct: 11 do_brk+0x206/0x2e2
vm_area_struct: 2 copy_vma+0xda/0x142
vm_area_struct: 9 setup_arg_pages+0x99/0x214
fs_cache: 8 copy_fs_struct+0x21/0x133
fs_cache: 29 copy_process+0xf38/0x10e3
files_cache: 30 alloc_files+0x1b/0xcf
signal_cache: 81 copy_process+0xbaa/0x10e3
sighand_cache: 77 copy_process+0xe65/0x10e3
sighand_cache: 1 de_thread+0x4d/0x5f8
anon_vma: 241 anon_vma_prepare+0xd9/0xf3
size-2048: 1 add_sect_attrs+0x5f/0x145
size-2048: 2 journal_init_revoke+0x99/0x302
size-2048: 2 journal_init_revoke+0x137/0x302
size-2048: 2 journal_init_inode+0xf9/0x1c4Cc: Manfred Spraul
Cc: Alexander Nyberg
Cc: Pekka Enberg
Cc: Christoph Lameter
Cc: Ravikiran Thirumalai
Signed-off-by: Al Viro
DESC
slab-leaks3-locking-fix
EDESC
From: Andrew MortonUpdate for slab-remove-cachep-spinlock.patch
Cc: Al Viro
Cc: Manfred Spraul
Cc: Alexander Nyberg
Cc: Pekka Enberg
Cc: Christoph Lameter
Cc: Ravikiran Thirumalai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a driver for the on-chip watchdog on the cirrus ep93xx series of ARM
CPUs.Signed-off-by: Lennert Buytenhek
Cc: Wim Van Sebroeck
Cc: Russell King
Signed-off-by: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The attached patch optimises d_find_alias() to only take the spinlock if
there's anything in the the inode's alias list. If there isn't, it returns
NULL immediately.With respect to the superblock sharing patch, this should reduce by one the
number of times the dcache_lock is taken by nfs_lookup() for ordinary
directory lookups.Only in the case where there's already a dentry for particular directory inode
(such as might happen when another mountpoint is rooted at that dentry) will
the lock then be taken the extra time.Signed-off-by: David Howells
Cc: Trond Myklebust
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
According to the specification the timevals must be validated and an
errorcode -EINVAL returned in case the timevals are not in canonical form.
This check was never done in Linux.The pre 2.6.16 code converted invalid timevals silently. Negative timeouts
were converted by the timeval_to_jiffies conversion to the maximum timeout.hrtimers and the ktime_t operations expect timevals in canonical form.
Otherwise random results might happen on 32 bits machines due to the
optimized ktime_add/sub operations. Negative timeouts are treated as
already expired. This might break applications which work on pre 2.6.16.To prevent random behaviour and API breakage the timevals are checked and
invalid timevals sanitized in a simliar way as the pre 2.6.16 code did.Invalid timevals are reported with a per boot limited number of kernel
messages so applications which use this misfeature can be corrected.After a grace period of one year the sanitizing should be replaced by a
correct validation check. This is also documented in
Documentation/feature-removal-schedule.txtThe validation and sanitizing is done inside do_setitimer so all callers
(sys_setitimer, compat_sys_setitimer, osf_setitimer) are catched.Signed-off-by: Thomas Gleixner
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
alarm() calls the kernel with an unsigend int timeout in seconds. The
value is stored in the tv_sec field of a struct timeval to setup the
itimer. The tv_sec field of struct timeval is of type long, which causes
the tv_sec value to be negative on 32 bit machines if seconds > INT_MAX.Before the hrtimer merge (pre 2.6.16) such a negative value was converted
to the maximum jiffies timeout by the timeval_to_jiffies conversion. It's
not clear whether this was intended or just happened to be done by the
timeval_to_jiffies code.hrtimers expect a timeval in canonical form and treat a negative timeout as
already expired. This breaks the legitimate usage of alarm() with a
timeout value > INT_MAX seconds.For 32 bit machines it is therefor necessary to limit the internal seconds
value to avoid API breakage. Instead of doing this in all implementations
of sys_alarm the duplicated sys_alarm code is moved into a common function
in itimer.cSigned-off-by: Thomas Gleixner
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I seem to have lost this hunk in yesterday's patch. It brings the
coming-online CPU's softlockup timer up to date so we don't get false-positive
tripups during CPU hot-add.Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Attached patch fixes invalid pointer arithmetic in DMI code to make onboard
device discovery working again.akpm: bug has been present since dmi_find_device() was added in 2.6.14.
Affects ipmi only (I think) - the symptoms weren't described.akpm: changed to use pointer arithmetic rather than open-coded sizeof.
Signed-off-by: Andrey Panin
Cc: Corey Minyard
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Mar, 2006
3 commits
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net: ne2k.c won't compile if pci_clone_list is const
f71e130966ba429dbd24be08ddbcdf263df9a5ad which (amongst other things)
made pci_clone_list in ne2k-pci.c const causes the following compile error.
This patch reverses that portion of that changesetdrivers/net/ne2k-pci.c:123: error: pci_clone_list causes a section type
conflict~/ gcc --version
gcc (GCC) 4.0.3 (Debian 4.0.3-1)
~/ dpkg gcc-4.0 | grep Version
Version: 4.0.3-1Signed-Off-By: Horms
-
This patch adds support for the Ethernet controller integrated in the
Atmel AT91RM9200 SoC processor.Changes since the previous submission (01/02/2006) are:
- Make use of the clk.h clock infrastructure.
- The multicast hash function is not crc32. [Patch by Pedro Perez]Signed-off-by: Andrew Victor
Signed-off-by: Jeff Garzik -
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[PATCH] libata: Remove dependence on host_set->dev for SAS
[PATCH] libata: ata_scsi_ioctl cleanup
[PATCH] libata: ata_scsi_queuecmd cleanup
[libata] export ata_dev_pair; trim trailing whitespace
[PATCH] libata: add ata_dev_pair helper
[PATCH] Make libata not powerdown drivers on PM_EVENT_FREEZE.
[PATCH] libata: make ata_set_mode() responsible for failure handling
[PATCH] libata: use ata_dev_disable() in ata_bus_probe()
[PATCH] libata: implement ata_dev_disable()
[PATCH] libata: check if port is disabled after internal command
[PATCH] libata: make per-dev transfer mode limits per-dev
[PATCH] libata: add per-dev pio/mwdma/udma_mask
[PATCH] libata: implement ata_unpack_xfermask()
[libata] Move some bmdma-specific code to libata-bmdma.c
[libata sata_uli] kill scr_addr abuse
[libata sata_nv] eliminate duplicate codepaths with iomap
[libata sata_nv] cleanups: convert #defines to enums; remove in-file history
[libata sata_sil24] cleanups: use pci_iomap(), kzalloc()
24 Mar, 2006
27 commits
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uevent_seqnum and uevent_helper are only defined if CONFIG_HOTPLUG=y,
CONFIG_NET=n.(I stole this back from Greg's tree - it makes allnoconfig work).
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Copies user-space string with strndup_user() and moves the type string
duplication code to a function (thus fixing a wrong check on the length of the
type.)Signed-off-by: Davi Arnaut
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change hand-coded userspace string copying to strndup_user.
Signed-off-by: Davi Arnaut
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch series creates a strndup_user() function to easy copying C strings
from userspace. Also we avoid common pitfalls like userspace modifying the
final \0 after the strlen_user().Signed-off-by: Davi Arnaut
Cc: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make the softlockup detector purely timer-interrupt driven, removing
softirq-context (timer) dependencies. This means that if the softlockup
watchdog triggers, it has truly observed a longer than 10 seconds
scheduling delay of a SCHED_FIFO prio 99 task.(the patch also turns off the softlockup detector during the initial bootup
phase and does small style fixes)Signed-off-by: Ingo Molnar
Signed-off-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If the change of personality does not lead to change of exec domain,
__set_personality() returned without releasing the module reference
acquired by lookup_exec_domain().Signed-off-by: Sergey Vlasov
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In filesystems with the meta block group flag on, ext3_bg_num_gdb() fails
to report the correct number of blocks used to store the group descriptor
backups in a given group. It happens because meta_bg follows a different
logic from the original ext3 backup placement in groups multiples of 3, 5
and 7.Signed-off-by: Glauber de Oliveira Costa
Cc: Andreas Dilger
Cc: "Stephen C. Tweedie"
Cc: Alex Tomas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Document the fact that setrlimit(RLIMIT_CPU) doesn't return error codes when
it should. I don't think we can fix this without a 2.7.x..Cc: Martin Schwidefsky
Cc: Ulrich Weigand
Cc: Cliff Wickman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
At present the kernel doesn't honour an attempt to set RLIMIT_CPU to zero
seconds. But the spec says it should, and that's what 2.4.x does.Fixing this for real would involve some complexity (such as adding a new
it-has-been-set flag to the task_struct, and testing that everwhere, instead
of overloading the value of it_prof_expires).Given that a 2.4 kernel won't actually send the signal until one second has
expired anyway, let's just handle this case by treating the caller's
zero-seconds as one second.Cc: Martin Schwidefsky
Cc: Ulrich Weigand
Cc: Cliff Wickman
Acked-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Whitespace cleanups
- Make that expression comprehensible.
There's a potential logic change here: we do the "is it_prof_expires equal to
zero" test after converting it to seconds, rather than doing the comparison
between raw cputime_t's.But given that it's in units of seconds anyway, that shouldn't change
anything.Cc: Martin Schwidefsky
Cc: Ulrich Weigand
Cc: Cliff Wickman
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Drivers have no business looking at the task list and thus using this lock.
The only possibly modular users left are:arch/ia64/kernel/mca.c
drivers/edac/edac_mc.c
fs/binfmt_elf.cwhich I'll send out fixes for soon.
Signed-off-by: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Remove more unused headers
- Remove various typedefs
- Correct type of PaddrP (physical addresses should be ulong)
- Kill use of bcopy
- More printk cleanups
- Kill true/false
- Clean up direct access to pci BARsSigned-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- Remove more unused headers
- Remove various typedefs
- Correct type of PaddrP (physical addresses should be ulong)
- Kill use of bcopy
- More printk cleanups
- Kill true/false
- Clean up direct access to pci BARsSigned-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Final polish. There is no more save_flags/cli type locking left. We also no
longer use the pcicopy function and file so they can go.Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Third large chunk of code cleanup. The split between this and #3 and #4 is
fairly arbitary and due to the message length limit on the list. These
patches continue the process of ripping out macros and typedefs while cleaning
up lots of 32bit assumptions. Several inlines for compatibility also get
removed and that causes a lot of noise.Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Second large chunk of code cleanup. The split between this and #3 and #4 is
fairly arbitary and due to the message length limit on the list. These
patches continue the process of ripping out macros and typedefs while cleaning
up lots of 32bit assumptions. Several inlines for compatibility also get
removed and that causes a lot of noise.Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
First large chunk of code cleanup. The split between this and #3 and #4 is
fairly arbitary and due to the message length limit on the list. These
patches continue the process of ripping out macros and typedefs while cleaning
up lots of 32bit assumptions. Several inlines for compatibility also get
removed and that causes a lot of noise.Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
More header cleanups, strip out typedefs and remove cruft. There are a lot of
magic macros that can go and also a great deal of abuse of volatile that is
not needed any more as this patch set cleans up the misuse of pointer access
to ISA and PCI space.It now builds cleanly on 64bit, although there is more work left to do
Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
After the indent we can now clean up unused code, and fix all myriad cases
that don't use readb/writeb properly.Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is the result of indent -kr -i8 -bri0 -l255
Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Strip some of the typedef mess out Remove a small subset of unused defines
and the like.Signed-off-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fixes for annoying gcc-4.1 compile warnings "value computed not used".
Simply cast to void.(akpm: Linus will go ballistic...)
Signed-off-by: Takashi Iwai
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Announce that the kernel_thread export will be removed in half a year,
after all it's users have been converted to the kthread_ API, which I plan
to do over the next month.Signed-off-by: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In some embedded systems the IDE hardware interface may only support 16-bit
or smaller accesses. Allow the interface to specify if this is the case
and don't allow the drive or user to override the setting.Signed-off-by: Kumar Gala
Acked-by: Bartlomiej Zolnierkiewicz
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
On architectures like i386, the "Multimedia Capabilities Port drivers" menu is
visible, but it can't be visited since it contains nothing usable for
!ARCH_SA1100.This patch therefore shows this menu only on ARCH_SA1100.
Signed-off-by: Adrian Bunk
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
If we don't want sys_newfstatat because __ARCH_WANT_STAT64 is defined, then
we certainly don't want compat_sys_newfstatat either.Signed-off-by: Grant Grundler
Signed-off-by: Kyle McMartin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
It appears that console_setup() code only gets compiled into the kernel if
CONFIG_PRINTK is enabled. One detrimental side-effect of this is that
serial8250_console_setup() never gets invoked when CONFIG_PRINTK is not
set, resulting in baud rate not being read/parsed from command line (i.e.
console=ttyS0,115200n8 is ignored, at least the baud rate part...)Attached patch moves console_setup() code from inside
#ifdef CONFIG_PRINTK
to outside (in printk.c), removing dependence on said config. option.
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
