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* [RBTREE] Add accessor macros for colour and parent fields of rb_nodeDavid Woodhouse2006-04-211-0/+9
| | | | | | | | This is in preparation for merging those fields into a single 'unsigned long', because using a whole machine-word for a single bit of colour information is wasteful. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2006-04-201-1/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (21 commits) [PATCH] wext: Fix RtNetlink ENCODE security permissions [PATCH] bcm43xx: iw_priv_args names should be <16 characters [PATCH] bcm43xx: sysfs code cleanup [PATCH] bcm43xx: fix pctl slowclock limit calculation [PATCH] bcm43xx: fix dyn tssi2dbm memleak [PATCH] bcm43xx: fix config menu alignment [PATCH] bcm43xx wireless: fix printk format warnings [PATCH] softmac: report when scanning has finished [PATCH] softmac: fix event sending [PATCH] softmac: handle iw_mode properly [PATCH] softmac: dont send out packets while scanning [PATCH] softmac: return -EAGAIN from getscan while scanning [PATCH] bcm43xx: set trans_start on TX to prevent bogus timeouts [PATCH] orinoco: fix truncating commsquality RID with the latest Symbol firmware [PATCH] softmac: fix spinlock recursion on reassoc [PATCH] Revert NET_RADIO Kconfig title change [PATCH] wext: Fix IWENCODEEXT security permissions [PATCH] wireless/atmel: send WEXT scan completion events [PATCH] wireless/airo: clean up WEXT association and scan events [PATCH] softmac uses Wiress Ext. ...
| * Merge branch 'upstream-fixes' of ↵Jeff Garzik2006-04-201-1/+2
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * [PATCH] softmac: fix event sendingJohannes Berg2006-04-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Softmac is sending custom events to userspace already, but it should _really_ be sending the right WEXT events instead. This patch fixes that. Signed-off-by: Dan Williams <dcbw@redhat.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-04-202-0/+8
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [EBTABLES]: Clean up vmalloc usage in net/bridge/netfilter/ebtables.c [NET]: Add skb->truesize assertion checking. [TCP]: Account skb overhead in tcp_fragment [SUNGEM]: Marvell PHY suspend. [LLC]: Use pskb_trim_rcsum() in llc_fixup_skb(). [NET]: sockfd_lookup_light() returns random error for -EBADFD
| * | [NET]: Add skb->truesize assertion checking.David S. Miller2006-04-202-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add some sanity checking. truesize should be at least sizeof(struct sk_buff) plus the current packet length. If not, then truesize is seriously mangled and deserves a kernel log message. Currently we'll do the check for release of stream socket buffers. But we can add checks to more spots over time. Incorporating ideas from Herbert Xu. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2006-04-202-2/+2
|\ \ \ | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC]: __NR_sys_splice --> __NR_splice
| * | | [SPARC]: __NR_sys_splice --> __NR_spliceDavid S. Miller2006-04-192-2/+2
| |/ / | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* | | [PATCH] x86_64: bring back __read_mostly support to linux-2.6.17-rc2Eric Dumazet2006-04-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems latest kernel has a wrong/missing __read_mostly implementation for x86_64 __read_mostly macro should be declared outside of #if CONFIG_X86_VSMP block Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] i386/x86-64: Fix x87 information leak between processesAndi Kleen2006-04-204-5/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AMD K7/K8 CPUs only save/restore the FOP/FIP/FDP x87 registers in FXSAVE when an exception is pending. This means the value leak through context switches and allow processes to observe some x87 instruction state of other processes. This was actually documented by AMD, but nobody recognized it as being different from Intel before. The fix first adds an optimization: instead of unconditionally calling FNCLEX after each FXSAVE test if ES is pending and skip it when not needed. Then do a x87 load from a kernel variable to clear FOP/FIP/FDP. This means other processes always will only see a constant value defined by the kernel in their FP state. I took some pain to make sure to chose a variable that's already in L1 during context switch to make the overhead of this low. Also alternative() is used to patch away the new code on CPUs who don't need it. Patch for both i386/x86-64. The problem was discovered originally by Jan Beulich. Richard Brunner provided the basic code for the workarounds, with contribution from Jan. This is CVE-2006-1056 Cc: richard.brunner@amd.com Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] memory_hotplug.h cleanupAdrian Bunk2006-04-201-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't have to #if guard prototypes. This also fixes a bug observed by Randy Dunlap due to a misspelled option in the #if. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] xtensa: Fix TIOCGICOUNT macroChris Zankel2006-04-201-1/+1
|/ / | | | | | | | | | | | | | | | | Remove the dependence on the async_icount structure in the TIOCGICOUNT macro for Xtensa. (Thanks Russell and Adrian for pointing this out) Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds2006-04-192-0/+13
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | * git://git.linux-nfs.org/pub/linux/nfs-2.6: SUNRPC: Dead code in net/sunrpc/auth_gss/auth_gss.c NFS: remove needless check in nfs_opendir() NFS: nfs_show_stats; for_each_possible_cpu(), not NR_CPUS NFS: make 2 functions static NFS,SUNRPC: Fix compiler warnings if CONFIG_PROC_FS & CONFIG_SYSCTL are unset NFS: fix PROC_FS=n compile error VFS: Fix another open intent Oops RPCSEC_GSS: fix leak in krb5 code caused by superfluous kmalloc
| * NFS,SUNRPC: Fix compiler warnings if CONFIG_PROC_FS & CONFIG_SYSCTL are unsetTrond Myklebust2006-04-191-0/+1
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFS: fix PROC_FS=n compile errorAdrian Bunk2006-04-191-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | fs/built-in.o: In function `nfs_show_stats':inode.c:(.text+0x15481a): undefined reference to `rpc_print_iostats' net/built-in.o: In function `rpc_destroy_client': undefined reference to `rpc_free_iostats' net/built-in.o: In function `rpc_clone_client': undefined reference to `rpc_alloc_iostats' net/built-in.o: In function `rpc_new_client': undefined reference to `rpc_alloc_iostats' net/built-in.o: In function `xprt_release': undefined reference to `rpc_count_iostats' make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | [PATCH] remove the obsolete IDEPCI_FLAG_FORCE_PDCAdrian Bunk2006-04-191-1/+0
| | | | | | | | | | | | | | | | | | | | Noted by Sergei Shtylylov <sshtylyov@ru.mvista.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] ide: ATI SB600 IDE supportAnatoli Antonovitch2006-04-191-0/+4
| | | | | | | | | | | | | | | | | | | | | | Add support for the IDE device on ATI SB600 Signed-off-by: Felix Kuehling <fkuehlin@ati.com> Acked-by: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] m32r: update switch_to macro for tuningHirokazu Takata2006-04-191-44/+23
| | | | | | | | | | | | | | | | | | | | | | - Remove unnecessary push/pop's of the switch_to() macro for performance tuning. - Cosmetic updates: change __inline__ to inline, etc. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Cc: NIIBE Yutaka <gniibe@fsij.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] m32r: mappi3 reboot supportHirokazu Takata2006-04-191-11/+11
| | | | | | | | | | | | | | | | | | | | Here is a patch to support a reboot function for M3A-2170(Mappi-III) evaluation board. Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] m32r: update include/asm-m32r/semaphore.hHirokazu Takata2006-04-191-60/+4
| | | | | | | | | | | | | | | | | | This patch updates include/asm-m32r/semaphore.h for good readability and maintainability. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] m32r: Fix pt_regs for !COFNIG_ISA_DSP_LEVEL2 targetHirokazu Takata2006-04-193-15/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This modification is required to fix debugging function for m32r targets with !CONFIG_ISA_DSP_LEVEL2, by unifying 'struct pt_regs' and 'struct sigcontext' size for all M32R ISA. Some m32r processor core with !CONFIG_ISA_DSP_LEVEL2 configuration has only single accumulator a0 (ex. VDEC2 core, M32102 core, etc.), the others with CONFIG_ISA_DSP_LEVEL2 has two accumulators, a0 and a1. This means there are two variations of thread context. So far, we reduced and changed stackframe size at a syscall for their context size. However, this causes a problem that a GDB for processors with CONFIG_ISA_DSP_LEVEL2 cannot be used for processors with !CONFIG_ISA_DSP_LEVEL2. From the viewpoint of GDB support, we should reduce such variation of stackframe size for simplicity. In this patch, dummy members are added to 'struct pt_regs' and 'struct sigcontext' to adjust their size for !CONFIG_ISA_DSP_LEVEL2. This modification is also a one step for a GDB update in future. Currently, on the m32r, GDB can access process's context by using ptrace functions in a simple way of register by register access. By unifying stackframe size, we have a possibility to make use of ptrace functions of not only a single register access but also block register access, PTRACE_{GETREGS,PUTREGS}. However, for this purpose, we might have to modify stackframe structure some more; for example, PSW (processor status word) register should be pre-processed before pushing to stack at a syscall, and so on. In this case, we must update carefully both kernel and GDB at a time... Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Cc: Kei Sakamoto <ksakamot@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] asm-i386/atomic.h: local_irq_save should be used instead of ↵lepton2006-04-191-2/+3
| | | | | | | | | | | | | | | | | | | | local_irq_disable atomic_add_return() if CONFIG_M386 can accidentally enable local interrupts. Signed-off-by: Lepton Wu <ytht.net@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] for_each_possible_cpu: x86_64KAMEZAWA Hiroyuki2006-04-191-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] task: Make task list manipulations RCU safeEric W. Biederman2006-04-191-2/+1
|/ | | | | | | | | | | | | | | | | While we can currently walk through thread groups, process groups, and sessions with just the rcu_read_lock, this opens the door to walking the entire task list. We already have all of the other RCU guarantees so there is no cost in doing this, this should be enough so that proc can stop taking the tasklist lock during readdir. prev_task was killed because it has no users, and using it will miss new tasks when doing an rcu traversal. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2006-04-1835-79/+1241
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (47 commits) [MAINTAINERS] The ham radio code now has website at http://www.linux-ax25.org. [MIPS] Use __ffs() instead of ffs() for waybit calculation. [MIPS] Fix Makefile bugs for MIPS32/MIPS64 R1 and R2. [MIPS] Handle IDE PIO cache aliases on SMP. [MIPS] Make mips_srs_init static. [MIPS] MIPS boards: Set HZ to 100. [MIPS] kgdb: Let gcc compute the array size itself. [MIPS] FPU affinity for MT ASE. [MIPS] MT: Improved multithreading support. [MIPS] kpsd and other AP/SP improvements. [MIPS] R2: Instruction hazard barrier. [MIPS] Fix genrtc compilation. [MIPS] R2: Implement shadow register allocation without spinlock. [MIPS] Fix VR41xx build errors. [MIPS] Fix tx49_blast_icache32_page_indexed. [MIPS] Enable SCHED_NO_NO_OMIT_FRAME_POINTER for MIPS. [MIPS] Use "R" constraint for cache_op. [MIPS] Rewrite all the assembler interrupt handlers to C. [MIPS] Fix the crime against humanity that mipsIRQ.S is. [MIPS] Fixup damage done by 22a9835c350782a5c3257343713932af3ac92ee0. ...
| * [MIPS] Handle IDE PIO cache aliases on SMP.Ralf Baechle2006-04-192-2/+45
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] MIPS boards: Set HZ to 100.Ralf Baechle2006-04-191-0/+13
| | | | | | | | | | | | | | 1000Hz will bring an FPGA CPU down on it's knees and it's even worse on multithreaded cores. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] FPU affinity for MT ASE.Ralf Baechle2006-04-194-1/+53
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] MT: Improved multithreading support.Ralf Baechle2006-04-1916-21/+924
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] kpsd and other AP/SP improvements.Ralf Baechle2006-04-194-14/+102
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix genrtc compilation.Ralf Baechle2006-04-191-2/+2
| | | | | | | | | | Signed-off-by: Ralf Roesch <ralf.roesch@rw-gmbh.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Use "R" constraint for cache_op.Ralf Baechle2006-04-191-1/+1
| | | | | | | | | | | | | | Gcc might emit an absolute address for the the "m" constraint which gas unfortunately does not permit. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix the crime against humanity that mipsIRQ.S is.Ralf Baechle2006-04-192-20/+17
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] JMR3927 build fixes for the RTC code.Ralf Baechle2006-04-192-2/+15
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] MV6434x: Add prototype of interrupt dispatch function.Ralf Baechle2006-04-191-0/+2
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] it8172: Fix build of serial driver.Ralf Baechle2006-04-191-6/+6
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] MV6434x: The name of the CPP symbol is __mips__, not __MIPS__.Ralf Baechle2006-04-191-1/+1
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Rewrite spurious_interrupt from assembler to C.Ralf Baechle2006-04-191-0/+1
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Wire up sync_file_range(2).Ralf Baechle2006-04-191-6/+9
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Wire splice syscall.Ralf Baechle2006-04-191-6/+9
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] More SHT_* and SHF_* ELF definitions.Ralf Baechle2006-04-191-2/+43
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix vectored interrupt support in TLB exception handler generator.Ralf Baechle2006-04-191-0/+1
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Provide access functions for c0_badvaddr.Ralf Baechle2006-04-191-0/+3
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Make set_vi_srs_handler static.Ralf Baechle2006-04-191-1/+0
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [IPV6]: Clean up hop-by-hop options handler.YOSHIFUJI Hideaki2006-04-181-1/+1
|/ | | | | | | | | | - Removed unused argument (nhoff) for ipv6_parse_hopopts(). - Make ipv6_parse_hopopts() to align with other extension header handlers. - Removed pointless assignment (hdr), which is not used afterwards. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] x86_64: Add tee and sync_file_rangeAndi Kleen2006-04-181-1/+3
| | | | | | | | tee was already there for some reason for native 64bit, but sys_sync_file_range was missing. Also add it to the compat layer. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86_64: Increase NUMA hash function nodemapAndi Kleen2006-04-181-1/+2
| | | | | | | | | | Needed for some big Opteron systems to compute a numa hash function They have more than 12 bits significant address. TBD switch this over to dynamic allocation or use better hash Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds2006-04-182-0/+15
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge: powerpc: Use correct sequence for putting CPU into nap mode [PATCH] spufs: fix context-switch decrementer code [PATCH] powerpc32: Set cpu explicitly in kernel compiles [PATCH] powerpc/pseries: bugfix: balance calls to pci_device_put [PATCH] powerpc: Fix machine detection in prom_init.c [PATCH] ppc32: Fix string comparing in platform_notify_map [PATCH] powerpc: Avoid __initcall warnings [PATCH] powerpc: Ensure runlatch is off in the idle loop powerpc: Fix CHRP booting - needs a define_machine call powerpc: iSeries has only 256 IRQs
| * powerpc: Use correct sequence for putting CPU into nap modePaul Mackerras2006-04-181-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We weren't using the recommended sequence for putting the CPU into nap mode. When I changed the idle loop, for some reason 7447A cpus started hanging when we put them into nap mode. Changing to the recommended sequence fixes that. The complexity here is that the recommended sequence is a loop that keeps putting the cpu back into nap mode. Clearly we need some way to break out of the loop when an interrupt (external interrupt, decrementer, performance monitor) occurs. Here we use a bit in the thread_info struct to indicate that we need this, and the exception entry code notices this and arranges for the exception to return to the value in the link register, thus breaking out of the loop. We use a new `local_flags' field in the thread_info which we can alter without needing to use an atomic update sequence. The PPC970 has the same recommended sequence, so we do the same thing there too. This also fixes a bug in the kernel stack overflow handling code on 32-bit, since it was causing a value that we needed in a register to get trashed. Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: iSeries has only 256 IRQsStephen Rothwell2006-04-041-0/+7
| | | | | | | | | | | | | | | | | | The iSeries Hypervisor only allows us to specify IRQ numbers up to 255 (it has a u8 field to pass it in). This patch allows platforms to specify a maximum to the virtual IRQ numbers we will use and has iSeries set that to 255. If not set, the maximum is NR_IRQS - 1 (as before). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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