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* [PATCH] libata: implement new SCR handling and port on/offline functionsTejun Heo2006-05-15
| | | | | | | | | | | | | | | | | | | | Implement ata_scr_{valid|read|write|write_flush}() and ata_port_{online|offline}(). These functions replace scr_{read|write}() and sata_dev_present(). Major difference between between the new SCR functions and the old ones is that the new ones have a way to signal error to the caller. This makes handling SCR-available and SCR-unavailable cases in the same path easier. Also, it eases later PM implementation where SCR access can fail due to various reasons. ata_port_{online|offline}() functions return 1 only when they are affirmitive of the condition. e.g. if SCR is unaccessible or presence cannot be determined for other reasons, these functions return 0. So, ata_port_online() != !ata_port_offline(). This distinction is useful in many exception handling cases. Signed-off-by: Tejun Heo <htejun@gmail.com>
* [PATCH] libata: implement qc->result_tfTejun Heo2006-05-15
| | | | | | | | | | | Add qc->result_tf and ATA_QCFLAG_RESULT_TF. This moves the responsibility of loading result TF from post-compltion path to qc execution path. qc->result_tf is loaded if explicitly requested or the qc failsa. This allows more efficient completion implementation and correct handling of result TF for controllers which don't have global TF representation such as sil3124/32. Signed-off-by: Tejun Heo <htejun@gmail.com>
* [PATCH] libata: use preallocated buffersTejun Heo2006-05-15
| | | | | | | | | | It's not a very good idea to allocate memory during EH. Use statically allocated buffer for dev->id[] and add 512byte buffer ap->sector_buf. This buffer is owned by EH (or probing) and to be used as temporary buffer for various purposes (IDENTIFY, NCQ log page 10h, PM GSCR block). Signed-off-by: Tejun Heo <htejun@gmail.com>
* [PATCH] libata: kill duplicate prototypesTejun Heo2006-05-15
| | | | | | Kill duplicate prototypes for ata_eh_qc_complete/retry() in libata.h. Signed-off-by: Tejun Heo <htejun@gmail.com>
* [PATCH] libata: rename ata_down_sata_spd_limit() and friendsTejun Heo2006-05-15
| | | | | | | Rename ata_down_sata_spd_limit() and friends to sata_down_spd_limit() and likewise for simplicity & consistency. Signed-off-by: Tejun Heo <htejun@gmail.com>
* [PATCH] SCSI: implement shost->host_eh_scheduledTejun Heo2006-05-15
| | | | | | | | | | | | | | | | | | | | | libata needs to invoke EH without scmd. This patch adds shost->host_eh_scheduled to implement such behavior. Currently the only user of this feature is libata and no general interface is defined. This patch simply adds handling for host_eh_scheduled where needed and exports scsi_eh_wakeup() to modules. The rest is upto libata. This is the result of the following discussion. http://thread.gmane.org/gmane.linux.scsi/23853/focus=9760 In short, SCSI host is not supposed to know about exceptions unrelated to specific device or command. Such exceptions should be handled by transport layer proper. However, the distinction is not essential to ATA and libata is planning to depart from SCSI, so, for the time being, libata will be using SCSI EH to handle such exceptions. Signed-off-by: Tejun Heo <htejun@gmail.com>
* [PATCH] SCSI: Introduce scsi_req_abort_cmd (REPOST)Luben Tuikov2006-05-15
| | | | | | | | | | | | | | | | Introduce scsi_req_abort_cmd(struct scsi_cmnd *). This function requests that SCSI Core start recovery for the command by deleting the timer and adding the command to the eh queue. It can be called by either LLDDs or SCSI Core. LLDDs who implement their own error recovery MAY ignore the timeout event if they generated scsi_req_abort_cmd. First post: http://marc.theaimsgroup.com/?l=linux-scsi&m=113833937421677&w=2 Signed-off-by: Luben Tuikov <ltuikov@yahoo.com> Signed-off-by: Tejun Heo <htejun@gmail.com>
* Merge branch 'master' into upstreamJeff Garzik2006-04-27
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| * Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2006-04-26
| |\ | | | | | | | | | | | | | | | | | | | | | | | | * 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: add ->splice_write support for /dev/null [PATCH] splice: rearrange moving to/from pipe helpers [PATCH] Add support for the sys_vmsplice syscall [PATCH] splice: fix offset problems [PATCH] splice: fix min() warning
| | * [PATCH] splice: rearrange moving to/from pipe helpersJens Axboe2006-04-26
| | | | | | | | | | | | | | | | | | We need these for people writing their own ->splice_read/write hooks. Signed-off-by: Jens Axboe <axboe@suse.de>
| | * [PATCH] Add support for the sys_vmsplice syscallJens Axboe2006-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice() moves data to a pipe, with the input being a user address range instead. This uses an approach suggested by Linus, where we can hold partial ranges inside the pages[] map. Hopefully this will be useful for network receive support as well. Signed-off-by: Jens Axboe <axboe@suse.de>
| * | [PATCH] sky2: reschedule if irq still pendingStephen Hemminger2006-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a workaround for the case edge-triggered irq's. Several users seem to have broken configurations sharing edge-triggered irq's. To avoid losing IRQ's, reshedule if more work arrives. The changes to netdevice.h are to extract the part that puts device back in list into separate inline. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * | Merge branch 'upstream-fixes' of ↵Jeff Garzik2006-04-26
| |\ \ | | |/ | |/| | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes
| | * [PATCH] softmac: fix SIOCSIWAPJohannes Berg2006-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are some bugs in the current implementation of the SIOCSIWAP wext, for example that when you do it twice and it fails, it may still try another access point for some reason. This patch fixes this by introducing a new flag that tells the association code that the bssid that is in use was fixed by the user and shouldn't be deviated from. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | [NETFILTER]: Fix compat_xt_counters alignment for non-x86Patrick McHardy2006-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some (?) non-x86 architectures require 8byte alignment for u_int64_t even when compiled for 32bit, using u_int32_t in compat_xt_counters breaks on these architectures, use u_int64_t for everything but x86. Reported by Andreas Schwab <schwab@suse.de>. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [SPARC]: __NR_sys removalOGAWA Hirofumi2006-04-24
| |/ | | | | | | | | | | | | | | __NR_sys_sync_file_range part was lost somewhere... [glibc is already checking __NR_sync_file_range] Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6Linus Torvalds2006-04-23
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: [PARISC] MAINTAINERS [PARISC] Make ioremap default to _nocache [PARISC] Add new entries to the syscall table [PARISC] Further work for multiple page sizes [PARISC] Fix up hil_kbd.c mismerge [PARISC] defconfig updates [PARISC] Document that we tolerate "Relaxed Ordering" [PARISC] Misc. janitorial work [PARISC] EISA regions must be mapped NO_CACHE [PARISC] OSS ad1889: Match register names with ALSA driver
| | * [PARISC] Make ioremap default to _nocacheKyle McMartin2006-04-21
| | | | | | | | | | | | | | | | | | | | | | | | Since it is way more work to change most drivers to comply with parisc, take the easy way out and make ioremap _NO_CACHE by default. This is in line with what powerpc does. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| | * [PARISC] Add new entries to the syscall tableKyle McMartin2006-04-21
| | | | | | | | | | | | | | | | | | | | | Most are easy, but sync_file_range needed special handling when entering through the 32-bit syscall table. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| | * [PARISC] Further work for multiple page sizesHelge Deller2006-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | More work towards supporing multiple page sizes on 64-bit. Convert some assumptions that 64bit uses 3 level page tables into testing PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups to assembler. Signed-off-by: Helge Deller <deller@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| * | powerpc: Fix define_machine so machine_is() works from modulesPaul Mackerras2006-04-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | machine_is() was always returning 0 when used in a module, because we weren't exporting the machine definitions. This was why sound wasn't working on powermacs when CONFIG_SND_POWERMAC=m. Original fix from Ben Herrenschmidt, further fixed by me. Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [PATCH] powerpc: IOMMU support for honoring dma_maskOlof Johansson2006-04-21
| |/ | | | | | | | | | | | | | | Some devices don't support full 32-bit DMA address space, which we currently assume. Add the required mask-passing to the IOMMU allocators. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * Merge branch 'upstream-linus' of ↵Linus Torvalds2006-04-20
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Garzik2006-04-20
| | |\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | | * [PATCH] softmac: fix event sendingJohannes Berg2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Torvalds2006-04-20
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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. Miller2006-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 branch 'master'Jeff Garzik2006-04-20
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| * | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2006-04-20
| |\ \ \ | | | | | | | | | | | | | | | | | | | | * 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. Miller2006-04-19
| | |/ / | | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | [PATCH] x86_64: bring back __read_mostly support to linux-2.6.17-rc2Eric Dumazet2006-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Kleen2006-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Bunk2006-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Zankel2006-04-20
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | 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 Torvalds2006-04-19
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 Myklebust2006-04-19
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: fix PROC_FS=n compile errorAdrian Bunk2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Bunk2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Antonovitch2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Takata2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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 Takata2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Takata2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Takata2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ↵lepton2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Hiroyuki2006-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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. Biederman2006-04-19
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Torvalds2006-04-18
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * '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 Baechle2006-04-18
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| | * [MIPS] MIPS boards: Set HZ to 100.Ralf Baechle2006-04-18
| | | | | | | | | | | | | | | | | | | | | 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 Baechle2006-04-18
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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