- 24 Jun, 2008 2 commits
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Robert Richter authored
This adds IBS to the cpu feature flags allowing Perfmon and OProfile to use cpu_has(). Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Vegard Nossum authored
fix: BUG: using smp_processor_id() in preemptible [00000000] code: oprofiled/27301 caller is nmi_shutdown+0x11/0x60 Pid: 27301, comm: oprofiled Not tainted 2.6.26-rc7 #25 [<c028a90d>] debug_smp_processor_id+0xbd/0xc0 [<c045fba1>] nmi_shutdown+0x11/0x60 [<c045dd4a>] oprofile_shutdown+0x2a/0x60 Note that we don't need this for the other functions, since they are all called with on_each_cpu() (which disables preemption for us anyway). Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: oprofile-list@lists.sf.net Cc: Johannes Weiner <hannes@saeurebad.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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- 23 Jun, 2008 18 commits
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git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds authored
* 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: nfs_updatepage(): don't mark page as dirty if an error occurred NFS: Fix filehandle size comparisons in the mount code NFS: Reduce the NFS mount code stack usage.
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Trond Myklebust authored
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Trond Myklebust authored
Fix a sign issue in xdr_decode_fhstatus3() Fix incorrect comparison in nfs_validate_mount_data() Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Trond Myklebust authored
This appears to fix the Oops reported in http://bugzilla.kernel.org/show_bug.cgi?id=10826Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Linus Torvalds authored
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futexes: fix fault handling in futex_lock_pi
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Linus Torvalds authored
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: refactor wait_for_completion_timeout() sched: fix wait_for_completion_timeout() spurious failure under heavy load sched: rt: dont stop the period timer when there are tasks wanting to run
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Linus Torvalds authored
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: xen: don't drop NX bit xen: mask unwanted pte bits in __supported_pte_mask xen: Use wmb instead of rmb in xen_evtchn_do_upcall(). x86: fix NULL pointer deref in __switch_to
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/mthca: Clear ICM pages before handing to FW
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: sb - Fix wrong assertions ALSA: aw2 - Fix Oops at initialization
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Nick Piggin authored
There is a race in the COW logic. It contains a shortcut to avoid the COW and reuse the page if we have the sole reference on the page, however it is possible to have two racing do_wp_page()ers with one causing the other to mistakenly believe it is safe to take the shortcut when it is not. This could lead to data corruption. Process 1 and process2 each have a wp pte of the same anon page (ie. one forked the other). The page's mapcount is 2. Then they both attempt to write to it around the same time... proc1 proc2 thr1 proc2 thr2 CPU0 CPU1 CPU3 do_wp_page() do_wp_page() trylock_page() can_share_swap_page() load page mapcount (==2) reuse = 0 pte unlock copy page to new_page pte lock page_remove_rmap(page); trylock_page() can_share_swap_page() load page mapcount (==1) reuse = 1 ptep_set_access_flags (allow W) write private key into page read from page ptep_clear_flush() set_pte_at(pte of new_page) Fix this by moving the page_remove_rmap of the old page after the pte clear and flush. Potentially the entire branch could be moved down here, but in order to stay consistent, I won't (should probably move all the *_mm_counter stuff with one patch). Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Hugh Dickins <hugh@veritas.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Commit 89f5b7da ("Reinstate ZERO_PAGE optimization in 'get_user_pages()' and fix XIP") broke vmware, as reported by Jeff Chua: "This broke vmware 6.0.4. Jun 22 14:53:03.845: vmx| NOT_IMPLEMENTED /build/mts/release/bora-93057/bora/vmx/main/vmmonPosix.c:774" and the reason seems to be that there's an old bug in how we handle do FOLL_ANON on VM_SHARED areas in get_user_pages(), but since it only triggered if the whole page table was missing, nobody had apparently hit it before. The recent changes to 'follow_page()' made the FOLL_ANON logic trigger not just for whole missing page tables, but for individual pages as well, and exposed this problem. This fixes it by making the test for when FOLL_ANON is used more careful, and also makes the code easier to read and understand by moving the logic to a separate inline function. Reported-and-tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Gustavo Fernando Padovan authored
I noted that the 'struct tty_struct *real_tty' is not used in this function, so I removed the code about 'real_tty'. Signed-off-by: Gustavo Fernando Padovan <gustavo@las.ic.unicamp.br> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alan Cox authored
Some of the requirement rules are now more relaxed. Also correct a contradiction in the previous update Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Eli Cohen authored
Current memfree FW has a bug which in some cases, assumes that ICM pages passed to it are cleared. This patch uses __GFP_ZERO to allocate all ICM pages passed to the FW. Once firmware with a fix is released, we can make the workaround conditional on firmware version. This fixes the bug reported by Arthur Kepner <akepner@sgi.com> here: http://lists.openfabrics.org/pipermail/general/2008-May/050026.html Cc: <stable@kernel.org> Signed-off-by: Eli Cohen <eli@mellanox.co.il> [ Rewritten to be a one-liner using __GFP_ZERO instead of vmap()ing ICM memory and memset()ing it to 0. - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Thomas Gleixner authored
This patch addresses a very sporadic pi-futex related failure in highly threaded java apps on large SMP systems. David Holmes reported that the pi_state consistency check in lookup_pi_state triggered with his test application. This means that the kernel internal pi_state and the user space futex variable are out of sync. First we assumed that this is a user space data corruption, but deeper investigation revieled that the problem happend because the pi-futex code is not handling a fault in the futex_lock_pi path when the user space variable needs to be fixed up. The fault happens when a fork mapped the anon memory which contains the futex readonly for COW or the page got swapped out exactly between the unlock of the futex and the return of either the new futex owner or the task which was the expected owner but failed to acquire the kernel internal rtmutex. The current futex_lock_pi() code drops out with an inconsistent in case it faults and returns -EFAULT to user space. User space has no way to fixup that state. When we wrote this code we thought that we could not drop the hash bucket lock at this point to handle the fault. After analysing the code again it turned out to be wrong because there are only two tasks involved which might modify the pi_state and the user space variable: - the task which acquired the rtmutex - the pending owner of the pi_state which did not get the rtmutex Both tasks drop into the fixup_pi_state() function before returning to user space. The first task which acquired the hash bucket lock faults in the fixup of the user space variable, drops the spinlock and calls futex_handle_fault() to fault in the page. Now the second task could acquire the hash bucket lock and tries to fixup the user space variable as well. It either faults as well or it succeeds because the first task already faulted the page in. One caveat is to avoid a double fixup. After returning from the fault handling we reacquire the hash bucket lock and check whether the pi_state owner has been modified already. Reported-by: David Holmes <david.holmes@sun.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: David Holmes <david.holmes@sun.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> kernel/futex.c | 93 ++++++++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 73 insertions(+), 20 deletions(-)
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Takashi Iwai authored
snd_assert() in save_mixer() and restore_mixer() in sb_mixer.c is just wrong. The debug code wasn't tested at all, obviously... Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Takashi Iwai authored
The irq handler may be called before the proper initialization of hardware. Call snd_aw2_saa7146_setup() before the irq handler registration. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Ingo Molnar authored
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- 22 Jun, 2008 1 commit
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Linus Torvalds authored
Christian Borntraeger reported that reinstating cond_resched() with CONFIG_PREEMPT caused a performance regression on lmbench: For example select file 500: 23 microseconds 32 microseconds and that's really because we totally unnecessarily do the cond_resched() in the innermost loop of select(), which is just silly. This moves it out from the innermost loop (which only ever loops ove the bits in a single "unsigned long" anyway), which makes the performance regression go away. Reported-and-tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 21 Jun, 2008 9 commits
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Christoph Lameter authored
The zonelist patches caused the loop that checks for available objects in permitted zones to not terminate immediately. One object per zone per allocation may be allocated and then abandoned. Break the loop when we have successfully allocated one object. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: Ext4: Fix online resize block group descriptor corruption
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git://lm-sensors.org/kernel/mhoffman/hwmon-2.6Linus Torvalds authored
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: hwmon: (lm75) sensor reading bugfix hwmon: (abituguru3) update driver detection hwmon: (w83791d) new maintainer hwmon: (abituguru3) Identify Abit AW8D board as such hwmon: Update the sysfs interface documentation hwmon: (adt7473) Initialize max_duty_at_overheat before use hwmon: (lm85) Fix function RANGE_TO_REG()
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Bernhard Walle authored
This patch changes the function reserve_bootmem_node() from void to int, returning -ENOMEM if the allocation fails. This fixes a build problem on x86 with CONFIG_KEXEC=y and CONFIG_NEED_MULTIPLE_NODES=y Signed-off-by: Bernhard Walle <bwalle@suse.de> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: netns: Don't receive new packets in a dead network namespace. sctp: Make sure N * sizeof(union sctp_addr) does not overflow. pppoe: warning fix ipv6: Drop packets for loopback address from outside of the box. ipv6: Remove options header when setsockopt's optlen is 0 mac80211: detect driver tx bugs
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Eric W. Biederman authored
Alexey Dobriyan <adobriyan@gmail.com> writes: > Subject: ICMP sockets destruction vs ICMP packets oops > After icmp_sk_exit() nuked ICMP sockets, we get an interrupt. > icmp_reply() wants ICMP socket. > > Steps to reproduce: > > launch shell in new netns > move real NIC to netns > setup routing > ping -i 0 > exit from shell > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 > IP: [<ffffffff803fce17>] icmp_sk+0x17/0x30 > PGD 17f3cd067 PUD 17f3ce067 PMD 0 > Oops: 0000 [1] PREEMPT SMP DEBUG_PAGEALLOC > CPU 0 > Modules linked in: usblp usbcore > Pid: 0, comm: swapper Not tainted 2.6.26-rc6-netns-ct #4 > RIP: 0010:[<ffffffff803fce17>] [<ffffffff803fce17>] icmp_sk+0x17/0x30 > RSP: 0018:ffffffff8057fc30 EFLAGS: 00010286 > RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff81017c7db900 > RDX: 0000000000000034 RSI: ffff81017c7db900 RDI: ffff81017dc41800 > RBP: ffffffff8057fc40 R08: 0000000000000001 R09: 000000000000a815 > R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff8057fd28 > R13: ffffffff8057fd00 R14: ffff81017c7db938 R15: ffff81017dc41800 > FS: 0000000000000000(0000) GS:ffffffff80525000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 000000017fcda000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process swapper (pid: 0, threadinfo ffffffff8053a000, task ffffffff804fa4a0) > Stack: 0000000000000000 ffff81017c7db900 ffffffff8057fcf0 ffffffff803fcfe4 > ffffffff804faa38 0000000000000246 0000000000005a40 0000000000000246 > 000000000001ffff ffff81017dd68dc0 0000000000005a40 0000000055342436 > Call Trace: > <IRQ> [<ffffffff803fcfe4>] icmp_reply+0x44/0x1e0 > [<ffffffff803d3a0a>] ? ip_route_input+0x23a/0x1360 > [<ffffffff803fd645>] icmp_echo+0x65/0x70 > [<ffffffff803fd300>] icmp_rcv+0x180/0x1b0 > [<ffffffff803d6d84>] ip_local_deliver+0xf4/0x1f0 > [<ffffffff803d71bb>] ip_rcv+0x33b/0x650 > [<ffffffff803bb16a>] netif_receive_skb+0x27a/0x340 > [<ffffffff803be57d>] process_backlog+0x9d/0x100 > [<ffffffff803bdd4d>] net_rx_action+0x18d/0x250 > [<ffffffff80237be5>] __do_softirq+0x75/0x100 > [<ffffffff8020c97c>] call_softirq+0x1c/0x30 > [<ffffffff8020f085>] do_softirq+0x65/0xa0 > [<ffffffff80237af7>] irq_exit+0x97/0xa0 > [<ffffffff8020f198>] do_IRQ+0xa8/0x130 > [<ffffffff80212ee0>] ? mwait_idle+0x0/0x60 > [<ffffffff8020bc46>] ret_from_intr+0x0/0xf > <EOI> [<ffffffff80212f2c>] ? mwait_idle+0x4c/0x60 > [<ffffffff80212f23>] ? mwait_idle+0x43/0x60 > [<ffffffff8020a217>] ? cpu_idle+0x57/0xa0 > [<ffffffff8040f380>] ? rest_init+0x70/0x80 > Code: 10 5b 41 5c 41 5d 41 5e c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 > 48 83 ec 08 48 8b 9f 78 01 00 00 e8 2b c7 f1 ff 89 c0 <48> 8b 04 c3 48 83 c4 08 > 5b c9 c3 66 66 66 66 66 2e 0f 1f 84 00 > RIP [<ffffffff803fce17>] icmp_sk+0x17/0x30 > RSP <ffffffff8057fc30> > CR2: 0000000000000000 > ---[ end trace ea161157b76b33e8 ]--- > Kernel panic - not syncing: Aiee, killing interrupt handler! Receiving packets while we are cleaning up a network namespace is a racy proposition. It is possible when the packet arrives that we have removed some but not all of the state we need to fully process it. We have the choice of either playing wack-a-mole with the cleanup routines or simply dropping packets when we don't have a network namespace to handle them. Since the check looks inexpensive in netif_receive_skb let's just drop the incoming packets. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
As noticed by Gabriel Campana, the kmalloc() length arg passed in by sctp_getsockopt_local_addrs_old() can overflow if ->addr_num is large enough. Therefore, enforce an appropriate limit. Signed-off-by: David S. Miller <davem@davemloft.net>
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Stephen Hemminger authored
Fix warning: drivers/net/pppoe.c: In function 'pppoe_recvmsg': drivers/net/pppoe.c:945: warning: comparison of distinct pointer types lacks a cast because skb->len is unsigned int and total_len is size_t Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] SN2: security hole in sn2_ptc_proc_write
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- 20 Jun, 2008 10 commits
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Ivan Kokshaysky authored
Which was removed in the hope that generic legacy IDE quirk in drivers/pci/probe.c is sufficient for Cypress IDE. It isn't, as this controller has non-standard BAR layout: secondary channel registers are in the BAR0-1 of the second PCI function - not in the BAR2-3 of the same function, as the generic quirk routine assumes. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ivan Kokshaysky authored
Vast majority of these build failures are gcc-4.3 warnings about static functions and objects being referenced from non-static (read: "extern inline") functions, in conjunction with our -Werror. We cannot just convert "extern inline" to "static inline", as people keep suggesting all the time, because "extern inline" logic is crucial for generic kernel build. So - just make sure that all callees of critical "extern inline" functions are also "extern inline"; - use "static inline", wherever it's possible. traps.c: work around gcc-4.3 being too smart about array bounds-checking. TODO: add "gnu_inline" attribute to all our "extern inline" functions to ensure desired behaviour with future compilers. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ivan Kokshaysky authored
With built-in scsi disk driver, the final link fails with a following error: `.exit.text' referenced in section `.rodata' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o This happens with -Os (CONFIG_CC_OPTIMIZE_FOR_SIZE=y) with all gcc-4 versions, and also with -O2 and gcc-4.3. The problem is in sd.c:sd_major() being inlined into __exit function exit_sd(), and the compiler generating a jump table in .rodata section for the 'switch' statement in sd_major(). So we have references to discarded section. Fixed with a big hammer in the form of -fno-jump-tables. Note that jump tables vs. discarded sections is a generic problem, other architectures are just lucky not to suffer from it. But with a slightly more complex switch/case statement it can be reproduced on x86 as well. So maybe at some point we should consider -fno-jump-tables as a generic compile option... Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ivan Kokshaysky authored
To calculate addresses of locally defined variables, GCC uses 32-bit displacement from the GP. Which doesn't work for per cpu variables in modules, as an offset to the kernel per cpu area is way above 4G. The workaround is to force allocation of a GOT entry for per cpu variable using ldq instruction with a 'literal' relocation. I had to use custom asm/percpu.h, as a required argument magic doesn't work with asm-generic/percpu.h macros. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: BAST: Remove old IDE driver pcmcia ide kingston compactflash's have a new manufacturer id pcmcia: add another pata/ide ID pcmcia: add an pata/ide ID ide: increase timeout in wait_drive_not_busy() palm_bk3710: fix resource management
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: Kconfig menu touch-up firewire: Kconfig menu touch-up firewire: deadline for PHY config transmission firewire: fw-ohci: unify printk prefixes firewire: fill_bus_reset_event needs lock protection firewire: fw-ohci: write selfIDBufferPtr before LinkControl.rcvSelfID firewire: fw-ohci: disable PHY packet reception into AR context firewire: fw-ohci: use of uninitialized data in AR handler firewire: don't panic on invalid AR request buffer
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: no AC status notification ACPI Exception (video-1721): UNKNOWN_STATUS_CODE, Cant attach device
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (21 commits) drm: only trust core drm ioctls - driver ioctls are a mess. drm/i915: add support for Intel series 4 chipsets. drm/radeon: add hier-z registers for r300 and r500 chipsets drm/radeon: use DSTCACHE_CTLSTAT rather than RB2D_DSTCACHE_CTLSTAT drm/radeon: switch IGP gart to use radeon_write_agp_base() drm/radeon: Restore sw interrupt on resume drm/r500: add support for AGP based cards. drm/radeon: fix texture uploads with large 3d textures (bug 13980) drm/radeon: add initial r500 support. drm/radeon: init pipe setup in kernel code. drm/radeon: fixup radeon_do_engine_reset drm/radeon: fix pixcache and purge/cache flushing registers drm/radeon: write AGP_BASE_2 on chips that support it. drm/radeon: merge IGP chip setup and fixup RS400 vs RS480 support drm/radeon: IGP clean up register and magic numbers. drm/rs690: set base 2 to 0. drm/rs690: set all of gart base address. radeon: add production microcode from AMD drm: pcigart use proper pci map interfaces. drm: the sg alloc ioctl should write back the handle to userspace ...
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6Linus Torvalds authored
* 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6: [agp]: fixup chipset flush for new Intel G4x. agp: brown paper bag patch - put back the two lines it took out.
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