14 Feb, 2008
29 commits
-
RCU style multiple probes support for the Linux Kernel Markers. Common case
(one probe) is still fast and does not require dynamic allocation or a
supplementary pointer dereference on the fast path.- Move preempt disable from the marker site to the callback.
Since we now have an internal callback, move the preempt disable/enable to the
callback instead of the marker site.Since the callback change is done asynchronously (passing from a handler that
supports arguments to a handler that does not setup the arguments is no
arguments are passed), we can safely update it even if it is outside the
preempt disable section.- Move probe arm to probe connection. Now, a connected probe is automatically
armed.Remove MARK_MAX_FORMAT_LEN, unused.
This patch modifies the Linux Kernel Markers API : it removes the probe
"arm/disarm" and changes the probe function prototype : it now expects a
va_list * instead of a "...".If we want to have more than one probe connected to a marker at a given
time (LTTng, or blktrace, ssytemtap) then we need this patch. Without it,
connecting a second probe handler to a marker will fail.It allow us, for instance, to do interesting combinations :
Do standard tracing with LTTng and, eventually, to compute statistics
with SystemTAP, or to have a special trigger on an event that would call
a systemtap script which would stop flight recorder tracing.Signed-off-by: Mathieu Desnoyers
Cc: Christoph Hellwig
Cc: Mike Mason
Cc: Dipankar Sarma
Cc: David Smith
Cc: "Paul E. McKenney"
Cc: "Frank Ch. Eigler"
Cc: Steven Rostedt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
ipwireless (added by 099dc4fb62653f6019d78db55fba7a18ef02d65b) is clearly
a net device:drivers/built-in.o: In function `ipwireless_ppp_start_xmit':
/home/pmundt/devel/git/sh-2.6.25/drivers/char/pcmcia/ipwireless/network.c:165: undefined reference to `skb_under_panic'
/home/pmundt/devel/git/sh-2.6.25/drivers/char/pcmcia/ipwireless/network.c:165: undefined reference to `kfree_skb'
drivers/built-in.o: In function `ipwireless_network_packet_received':
/home/pmundt/devel/git/sh-2.6.25/drivers/char/pcmcia/ipwireless/network.c:377: undefined reference to `__alloc_skb'
/home/pmundt/devel/git/sh-2.6.25/drivers/char/pcmcia/ipwireless/network.c:377: undefined reference to `skb_over_panic'
drivers/built-in.o: In function `ppp_shutdown_interface':
/home/pmundt/devel/git/sh-2.6.25/drivers/net/ppp_generic.c:2517: undefined reference to `unregister_netdev'
/home/pmundt/devel/git/sh-2.6.25/drivers/net/ppp_generic.c:2517: undefined reference to `free_netdev'
[ ... and many more ... ]select strikes again. ipwireless selects PPP which in turn tries to select
SLHC, both of which are technically "protected" by an if NETDEVICES
in drivers/net/Kconfig. This leads to .config hilarity, with net suddenly
ending up in the SCSI menu:#
# SCSI device support
#
# CONFIG_SCSI_DMA is not set
# CONFIG_SCSI_NETLINK is not set
CONFIG_PPP=y
# CONFIG_PHONE is not setCuriously the SLHC select from PPP doesn't seem to happen, as there's no
CONFIG_SLHC=y (only CONFIG_PPP=y gets set) -- Kconfig bug? Caught with a
randconfig.Signed-off-by: Paul Mundt
Acked-by: Jiri Kosina
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
There's a small problem with smack and NFS. A similar report was also
sent here: http://lkml.org/lkml/2007/10/27/85I've also added similar checks in inode_{get/set}security(). Cheating from
SELinux post_create_socket(), it does the same.[akpm@linux-foundation.org: remove uneeded BUG_ON()]
Signed-off-by: Ahmed S. Darwish
Acked-by: Casey Schaufler
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In commit 742ba02a51c8d0bf5446b154531179760c1ed0a2 (udf: create common
function for changing free space counter) by accident I reversed safety
condition which lead to null pointer dereference in case of media error and
wrong counting of free space in normal situationSigned-off-by: Marcin Slusarz
Cc: Jan Kara
Acked-by: Cyrill Gorcunov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Patch cleaning up UDF directory offset handling missed modifications in dir.c
(because I've submitted an old version :(). Fix it.Signed-off-by: Jan Kara
Reported-by: Marcin Slusarz
Tested-by: Marcin Slusarz
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch fixes a reference to Documentation/kmod.txt
which was apparently renamed to Documentation/debugging-modules.txtSigned-off-by: Michael Opdenacker
Cc: "Randy.Dunlap"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix the warning message regarding smbfs to
"smbfs is deprecated and will be removed from the 2.6.27 kernel. Please migrate to cifs"
instead of
"smbfs is deprecated and will be removedfrom the 2.6.27 kernel. Please migrate to cifs"
Signed-off-by: Sergio Luis
Screwed-up-by: Andrew Morton
Cc: Steven French
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Drop z85230 support library info from kernel-api since it's duplicated in
the Z85230 book.Signed-off-by: Randy Dunlap
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
remove beX_add functions and replace all uses with beX_add_cpu
Signed-off-by: Marcin Slusarz
Cc: Mark Fasheh
Reviewed-by: Dave Chinner
Cc: Timothy Shimmin
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
On alpha, ia64 and ppc64 only relocations to local data can go into
read-only sections. The vast majority of module parameters use the global
generic param_set_*/param_get_* functions, so the 'const' attribute for
struct kernel_param is not only useless, but it also causes compile
failures due to 'section type conflict' in those rare cases where
param_set/get are local functions.This fixes http://bugzilla.kernel.org/show_bug.cgi?id=8964
Signed-off-by: Ivan Kokshaysky
Cc: Richard Henderson
Cc: "Luck, Tony"
Cc: Anton Blanchard
Cc: Paul Mackerras
Cc: Adrian Bunk
Cc: Kamalesh Babulal
Cc: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move networking (core and drivers) docbook to its own networking book.
Fix a few kernel-doc errors in header and source files.Signed-off-by: Randy Dunlap
Cc: Trond Myklebust
Cc: "J. Bruce Fields"
Cc: Neil Brown
Cc: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Use updated file list for docbook files and
fix kernel-doc warnings in sunrpc:
Warning(linux-2.6.24-git12//net/sunrpc/rpc_pipe.c:689): No description found for parameter 'rpc_client'
Warning(linux-2.6.24-git12//net/sunrpc/rpc_pipe.c:765): No description found for parameter 'flags'
Warning(linux-2.6.24-git12//net/sunrpc/clnt.c:584): No description found for parameter 'tk_ops'
Warning(linux-2.6.24-git12//net/sunrpc/clnt.c:618): No description found for parameter 'bufsize'Signed-off-by: Randy Dunlap
Cc: Trond Myklebust
Cc: "J. Bruce Fields"
Cc: Neil Brown
Cc: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move pipes and splice docbook to filesystems book.
kernel-api book is huge (10x most other books) & slow to process.Signed-off-by: Randy Dunlap
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix several kernel-doc notation errors in fs/pipe.c.
Signed-off-by: Randy Dunlap
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix section warning for parport_ECP_supported(); it's called from a routine
exported to modules, so it can't be removed with __devinit section pruning.Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Kernel style is mentioned twice, and the git apply trick is a bit redundant
given the checkpatch.pl recommendation (which also checks for bad
whitespace).Signed-off-by: J. Bruce Fields
Cc: "Randy.Dunlap"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
proc_doulongvec_minmax() calls copy_to_user()/copy_from_user(), so we can't
hold hugetlb_lock over the call. Use a dummy variable to store the sysctl
result, like in hugetlb_sysctl_handler(), then grab the lock to update
nr_overcommit_huge_pages.Signed-off-by: Nishanth Aravamudan
Reported-by: Miles Lane
Cc: Adam Litke
Cc: David Gibson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When submitting the driver for inclusion to 2.6.25 I've missed the change to
serial_core.h. This patch fixes this.Signed-off-by: Thomas Bogendoerfer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
All users are gone, remove definitions and comments referring
to them.Signed-off-by: Harvey Harrison
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
fastcall always expands to empty, remove it.
Signed-off-by: Harvey Harrison
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This comment caused some consternation during fastcall removal. Make it
truthful.Signed-off-by: Paul E. McKenney
Cc: Harvey Harrison
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
FASTCALL() is always expanded to empty, remove it.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Harvey Harrison
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit d3d74453c34f8fd87674a8cf5b8a327c68f22e99 ("hrtimer: fixup the
HRTIMER_CB_IRQSAFE_NO_SOFTIRQ fallback") broke several archs, and since
only Russell bothered to merge the fix, and Greg to ACK his arch, I'm
sending this for merger.I have confirmation that the Alpha bit results in a booting kernel.
That leaves: blackfin, frv, sh and sparc untested.The deadlock in question was found by Russell:
IRQ handle
-> timer_tick() - xtime seqlock held for write
-> update_process_times()
-> run_local_timers()
-> hrtimer_run_queues()
-> hrtimer_get_softirq_time() - tries to get a read lockNow, Thomas assures me the fix is trivial, only do_timer() needs to be
done under the xtime_lock, and update_process_times() can savely be
removed from under it.Signed-off-by: Peter Zijlstra
Acked-by: Greg Ungerer
CC: Richard Henderson
CC: Bryan Wu
CC: David Howells
CC: Paul Mundt
CC: William Irwin
Acked-by: Ingo Molnar
Acked-by: Ivan Kokshaysky
Signed-off-by: Linus Torvalds -
The raw_pci_read() interface (as the raw_pci_ops->read() before it)
unconditionally fills in a 32-bit integer return value regardless of the
size of the operation requested.So claiming to take a "void *" is wrong, as is passing in a pointer to
just a byte variable.Noticed by pageexec when enabling -fstack-protector (which needs other
patches too to actually work, but that's a separate issue).Acked-by: Len Brown
Signed-off-by: Linus Torvalds -
Fix up parse error in FRV linker script, presumably introduced through changes
to the INIT_TEXT and EXIT_TEXT macros.Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
sched: rt-group: refure unrunnable tasks
sched: rt-group: clean up the ifdeffery
sched: rt-group: make rt groups scheduling configurable
sched: rt-group: interface
sched: rt-group: deal with PI
sched: fix incorrect irq lock usage in normalize_rt_tasks()
sched: fair-group: separate tg->shares from task_group_lock
hrtimer: more hrtimer_init_sleeper() fallout. -
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
x86: pit_clockevent can be static
x86: EFI runtime code mapping enhancement
x86: EFI: fix use of unitialized variable and the cache logic
x86: CPA: fix gbpages support in try_preserve_large_page
xen: unpin initial Xen pagetable once we're finished with it
x86/early_ioremap: don't assume we're using swapper_pg_dir
x86: fixup machine_ops reboot_{32|64}.c unification fallout
x86: fix sigcontext.h user export -
writel(sock + ...) that should've been writel(sock->addr + ...)
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
test_and_set_bit() on address of uint32_t is a Bad Idea(tm)...
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds
13 Feb, 2008
11 commits
-
Signed-off-by: Al Viro
Acked-by: Carlos Corbacho
Signed-off-by: Linus Torvalds -
arch/x86/kernel/i8253.c:98:27: warning: symbol 'pit_clockevent' was not declared. Should it be static?
Signed-off-by: Harvey Harrison
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar -
This patch enhances EFI runtime code memory mapping as following:
- Move __supported_pte_mask & _PAGE_NX checking before invoking
runtime_code_page_mkexec(). This makes it possible for compiler to
eliminate runtime_code_page_mkexec() on machine without NX support.- Use set_memory_x/nx in early_mapping_set_exec(). This eliminates the
duplicated implementation.This patch has been tested on Intel x86_64 platform with EFI64/32
firmware.Signed-off-by: Huang Ying
Signed-off-by: Ingo Molnar -
Andi Kleen pointed out that the cache attribute logic is reverse in
efi_enter_virtual_mode(). This problem alone is harmless as we do not
(yet) do cache attribute conflict resolution. (This bug was not present
in the original EFI submission - I introduced it while fixing up rejects.)While reviewing this code I noticed a second, worse problem: the use of
uninitialized md->virt_addr.Fix both problems.
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar -
[ mingo@elte.hu: while gbpages cannot be enabled on mainline currently,
keep the code uptodate and this fix is easy enough. ]Use correct page sizes and masks for GB pages in try_preserve_large_page()
This prevents a boot hang on a GB capable system with CONFIG_DIRECT_GBPAGES
enabled.Signed-off-by: Andi Kleen
Signed-off-by: Ingo Molnar
Signed-off-by: Thomas Gleixner -
Unpin the Xen-provided pagetable once we've finished with it, so it
doesn't cause stray references which cause later swapper_pg_dir
pagetable updates to fail.Signed-off-by: Jeremy Fitzhardinge
Tested-by: Jody Belka
Signed-off-by: Ingo Molnar -
At the early stages of boot, before the kernel pagetable has been
fully initialized, a Xen kernel will still be running off the
Xen-provided pagetables rather than swapper_pg_dir[]. Therefore,
readback cr3 to determine the base of the pagetable rather than
assuming swapper_pg_dir[].Signed-off-by: Jeremy Fitzhardinge
Tested-by: Jody Belka
Signed-off-by: Ingo Molnar -
When reboot_32.c and reboot_64.c were unified (commit 4d022e35fd...),
the machine_ops code was broken, leading to xen pvops kernels failing
to properly halt/poweroff/reboot etc. This fixes that up.Signed-off-by: Jody Belka
Cc: Miguel Boton
Signed-off-by: Thomas Gleixner
Signed-off-by: Ingo Molnar -
Jakub Jelinek reported that some user-space code that relies on
kernel headers has built dependency on the sigcontext->eip/rip
register names - which have been unified in commit:commit 742fa54a62be6a263df14a553bf832724471dfbe
Author: H. Peter Anvin
Date: Wed Jan 30 13:30:56 2008 +0100x86: use generic register names in struct sigcontext
so give the old layout to user-space. This is not particularly
pretty, but it's an ABI so there's no danger of the two definitions
getting out of sync.Reported-by: Jakub Jelinek
Signed-off-by: Ingo Molnar -
Refuse to accept or create RT tasks in groups that can't run them.
Signed-off-by: Peter Zijlstra
Signed-off-by: Ingo Molnar -
Clean up some of the excessive ifdeffery introduces in the last patch.
Signed-off-by: Peter Zijlstra
Signed-off-by: Ingo Molnar
