For some reason old binutils genertate larger headers so increase the text
offset of the vdso to avoid linker errors.
Roland McGrath explains:
"There are extra symbols in the '.dynsym' section that are responsible
for the size difference (They also cause corresponding inflation in
'.gnu.version')
Older ld's wrongly generated these unneeded symbols in .dynsym. This
was fixed not all that long ago (2006); binutils-2.17.50.0.6 might be
the first fixed version, but I have not verified for sure where the
cutoff was.
The unneeded symbols et al from old ld add almost 700 bytes excess.
This limits fairly tightly the amount by which the actual text and
data in the vDSO can grow in the future without pushing the whole
file over 4kb. If it does grow later on, we should consider changing
the layout with a config option or something to pack it better
without that padding, when building the kernel with newer binutils."
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Roland McGrath <roland@redhat.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On a POWER6 machine running 2.6.23-rc8 I sometimes see the following error:
xics_set_affinity: No online cpus in the mask 00000000,00000000,00000000,00000001 for irq 20
In a desperate attempt to get a changelog entry in 2.6.23, I took a look
into it.
It turns out we are passing a real and not a virtual irq into
get_irq_server. This works for the case where hwirq < NR_IRQS and we
set virq = hwirq. In my case however hwirq = 590082 and we try and
access irq_desc[590082], slightly past the end at 512 entries.
Lucky we ship lots of memory with our machines.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Nick Piggin points out that splice isn't being good about the mmap
semaphore: while two readers can nest inside each others, it does leave
a possible deadlock if a writer (ie a new mmap()) comes in during that
nesting.
Original "just move the locking" patch by Nick, replaced by one by me
based on an optimistic pagefault_disable(). And then Jens tested and
updated that patch.
Reported-by: Nick Piggin <npiggin@suse.de>
Tested-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6:
Revert "[XFS] Avoid replaying inode buffer initialisation log items if ..
[ Fixed it and added some commit messages by hand to that branch - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit b394e43e99.
Lachlan McIlroy says:
It tried to fix an issue where log replay is replaying an inode cluster
initialisation transaction that should not be replayed because the inode
cluster on disk is more up to date. Since we don't log file sizes (we
rely on inode flushing to get them to disk) then we can't just replay
all the transations in the log and expect the inode to be completely
restored. We lose file size updates. Unfortunately this fix is causing
more (serious) problems than it is fixing.
SGI-PV: 969656
SGI-Modid: xfs-linux-melb:xfs-kern:29804a
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Calling handle_futex_death in exit_robust_list for the different robust
mutexes of a thread basically frees the mutex. Another thread might grab
the lock immediately which updates the next pointer of the mutex.
fetch_robust_entry over the next pointer might therefore branch into the
robust mutex list of a different thread. This can cause two problems: 1)
some mutexes held by the dead thread are not getting freed and 2) some
mutexs held by a different thread are freed.
The next point need to be read before calling handle_futex_death.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When calling the RELDISP VT ioctl, we are reading vt_newvt while the
console workqueue could be messing with it (through change_console()). We
fix this race by taking the console semaphore before reading vt_newvt.
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Acked-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We need to disable all CPUs other than the boot CPU (usually 0) before
attempting to power-off modern SMP machines. This fixes the
hang-on-poweroff issue on my MythTV SMP box, and also on Thomas Gleixner's
new toybox.
Signed-off-by: Mark Lord <mlord@pobox.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The virtual address space argument of clear_user_highpage is supposed to be
the virtual address where the page being cleared will eventually be mapped.
This allows architectures with virtually indexed caches a few clever
tricks. That sort of trick falls over in painful ways if the virtual
address argument is wrong.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Store any note sections after the exception tables like the other
architectures do. This is required for .note.gnu.build-id emitted from
binutils 2.18 onwards if nothing else.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
A "cleanup" almost two years ago deleted the old definition from
<asm/fcntl.h>, so asm-generic/fcntl.h defaulted it to the the same
value as FASYNC ... which happened to be the wrong thing.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Dependency cleanup. The non-cayman boards don't have the mach callbacks
for this and build error badness ensues.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Now that the ROM-RAM and generic boards are killed off, refactor
the dependencies accordingly. Those were the only special cases,
so all of the Kconfig dependency hell gets much cleaner as a result.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
The consistent DMA stuff was evolved from the old PCI DMA mapping
functions. As this has been overhauled, it's something that is
used by the generic DMA mapping code, and thus, has no intrinsic
PCI dependence.
Move the routines somewhere more sensible (same place as sh), and
fix up the build for CONFIG_PCI=n in the process.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This fixes up misc build issues that were hit on the non-cayman
boards. Additionally, quite a few symbols needed to be exported
to fix the module build.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
The generic board stubs were never added, and the ROM-RAM boards
never made it in to the wild. Neither one has any users, and both
are utterly broken in-tree (likely since 2.4). Kill them both off.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
There were quite a few left over includes from code that was removed
long ago, rip out the stuff we no longer need.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
These were implemented using an ugly macro for just simple wrapping,
so we just make the wrapping explicit and move it to io.h instead.
Also fixes up some modules:
CC [M] drivers/net/8390.o
In file included from drivers/net/8390.c:6:
drivers/net/lib8390.c: In function 'ei_start_xmit':
drivers/net/lib8390.c:329: error: implicit declaration of function 'outb_p'
drivers/net/lib8390.c: In function '__ei_interrupt':
drivers/net/lib8390.c:457: error: implicit declaration of function 'inb_p'
make[2]: *** [drivers/net/8390.o] Error 1
make[1]: *** [drivers/net] Error 2
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Add support for RGB output to the Dreamcast PVR2 frame buffer driver.
Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Fix missing symbols in libertas USB driver when it is modular and rest
of libertas is built-in.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
argv and envp are pointers to u32's in userspace, so don't
try to put_user() a NULL to them.
Aparently gcc-4.2.x now warns about this, and since we use
-Werror for arch/sparc64 code, this breaks the build.
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the following (valid) section warnings:
WARNING: vmlinux.o(.text+0xf7b5c): Section mismatch: reference to .init.text:pcibios_fixup_bus (between 'pci_scan_child_bus' and 'pci_scan_bridge')
WARNING: vmlinux.o(.text+0xfc5f4): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_map_rom' and 'pci_unmap_rom')
WARNING: vmlinux.o(.text+0xfc824): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_update_resource' and 'pci_claim_resource')
WARNING: vmlinux.o(.text+0xfd6d8): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_setup_cardbus' and 'find_free_bus_resource')
WARNING: vmlinux.o(.text+0xfd730): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_setup_cardbus' and 'find_free_bus_resource')
WARNING: vmlinux.o(.text+0xfd788): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_setup_cardbus' and 'find_free_bus_resource')
WARNING: vmlinux.o(.text+0xfd7e0): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_setup_cardbus' and 'find_free_bus_resource')
WARNING: vmlinux.o(.text+0xfe024): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_bus_assign_resources' and 'sys_pciconfig_read')
WARNING: vmlinux.o(.text+0xfe0f4): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_bus_assign_resources' and 'sys_pciconfig_read')
WARNING: vmlinux.o(.text+0xfe17c): Section mismatch: reference to .init.text:pcibios_resource_to_bus (between 'pci_bus_assign_resources' and 'sys_pciconfig_read')
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Using udma yuv causes the driver becomes locked into that mode. This prevents
use of the mpeg decoder & non-udma yuv output. This patch clears the
operating mode when the device is closed.
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
The new behaviour of CFS exposes a race which occurs if a switch is
requested when vt_mode.mode is VT_PROCESS.
The process with vc->vt_pid is signaled before vc->vt_newvt is set.
This causes the switch to fail when triggered by the monitoing process
because the target is still -1.
[ If the signal sending fails, the subsequent "reset_vc(vc)" will then
reset vt_newvt to -1, so this works for that case too. - Linus ]
Signed-off-by: Jan Lübbe <jluebbe@lasnet.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The comment being removed by this patch is incorrect and misleading.
In the following situation:
1. load ...
2. store 1 -> X
3. wmb
4. rmb
5. load a <- Y
6. store ...
4 will only ensure ordering of 1 with 5.
3 will only ensure ordering of 2 with 6.
Further, a CPU with strictly in-order stores will still only provide that
2 and 6 are ordered (effectively, it is the same as a weakly ordered CPU
with wmb after every store).
In all cases, 5 may still be executed before 2 is visible to other CPUs!
The additional piece of the puzzle that mb() provides is the store/load
ordering, which fundamentally cannot be achieved with any combination of
rmb()s and wmb()s.
This can be an unexpected result if one expected any sort of global ordering
guarantee to barriers (eg. that the barriers themselves are sequentially
consistent with other types of barriers). However sfence or lfence barriers
need only provide an ordering partial ordering of memory operations -- Consider
that wmb may be implemented as nothing more than inserting a special barrier
entry in the store queue, or, in the case of x86, it can be a noop as the store
queue is in order. And an rmb may be implemented as a directive to prevent
subsequent loads only so long as their are no previous outstanding loads (while
there could be stores still in store queues).
I can actually see the occasional load/store being reordered around lfence on
my core2. That doesn't prove my above assertions, but it does show the comment
is wrong (unless my program is -- can send it out by request).
So:
mb() and smp_mb() always have and always will require a full mfence
or lock prefixed instruction on x86. And we should remove this comment.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Paul McKenney <paulmck@us.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 468d09f894 masked the "state"
interrupt (bit 20 of the cause register). This results in Radstone's
PPC7D repeatedly re-entering the interrupt routine, locking up the
board. The following patch returns the required handling for this
interrupt.
Signed-off-by: Martyn Welch <martyn.welch@radstone.co.uk>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Linas reported me that some machines were crashing at boot in
quirk_e100_interrupt. It appears that this quirk is doing an ioremap
directly on a PCI BAR value, which isn't legal and will cause all sorts
of bad things to happen on architectures where PCI BARs don't directly
match processor bus addresses.
This fixes it by using the proper PCI resources instead which is possible
since the quirk has been moved by a previous commit to happen late enough
for that.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[TCP]: Fix MD5 signature handling on big-endian.
[NET]: Zero length write() on socket should not simply return 0.
Input: xpad - fix dependancy on LEDS class
The driver can not be built-in when LEDS class is a module.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It doesn't look as if the NFS file name limit is being initialised correctly
in the struct nfs_server. Make sure that we limit whatever is being set in
nfs_probe_fsinfo() and nfs_init_server().
Also ensure that readdirplus and nfs4_path_walk respect our file name
limits.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
e1000: Add device IDs of blade version of the 82571 quad port
sky2: fix transmit state on resume
sky2: FE+ vlan workaround
sky2: sky2 FE+ receive status workaround
Based upon a report and initial patch by Peter Lieven.
tcp4_md5sig_key and tcp6_md5sig_key need to start with
the exact same members as tcp_md5sig_key. Because they
are both cast to that type by tcp_v{4,6}_md5_do_lookup().
Unfortunately tcp{4,6}_md5sig_key use a u16 for the key
length instead of a u8, which is what tcp_md5sig_key
uses. This just so happens to work by accident on
little-endian, but on big-endian it doesn't.
Instead of casting, just place tcp_md5sig_key as the first member of
the address-family specific structures, adjust the access sites, and
kill off the ugly casts.
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Fix fallocate on o32 binary compat ABI
[MIPS] Fix CONFIG_BUILD_ELF64 kernels with symbols in CKSEG0.
[MIPS] IP32: Fix initialization of UART base addresses.
MIPS was mistakenly forgetting to use the fallocate compat wrapper, which
I noticed while cleaning up all the duplicate fallocate wrappers.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The __pa() for those did assume that all symbols have XKPHYS values and
the math fails for any other address range.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The e820 probe code was checking %edx, not %eax, for the SMAP
signature on return. This worked on *almost* all systems, since %edx
still contained SMAP from the call on entry, but on a handful of
systems it failed -- plus, we would have missed real mismatches.
The error output is "=d" to make sure gcc knows %edx is clobbered
here.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
