- 23 10月, 2010 10 次提交
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由 Jason Wessel 提交于
When returning from the kernel debugger reset the rcu jiffies_stall value to prevent the rcu stall detector from sending NMI events which invoke a stack dump for each cpu in the system. Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
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由 Jason Wessel 提交于
Move the various clock and watch dog syncs to a single function in advance of adding another sync for the rcu stall detector. Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
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由 Jason Wessel 提交于
HW breakpoints events stopped working correctly with kgdb as a result of commit: 018cbffe (Merge commit 'v2.6.33' into perf/core), later commit: ba773f7c (x86,kgdb: Fix hw breakpoint regression) allowed breakpoints to propagate to the debugger core but did not completely address the original regression in functionality found in 2.6.35. When the DR_STEP flag is set in dr6 along with any of the DR_TRAP bits, the kgdb exception handler will enter once from the hw_breakpoint API call back and again from the die notifier for do_debug(), which causes the debugger to stop twice and also for the kgdb regression tests to fail running under kvm with: echo V2I1 > /sys/module/kgdbts/parameters/kgdbts To address the problem, the kgdb overflow handler needs to implement the same logic as the ptrace overflow handler call back with respect to updating the virtual copy of dr6. This will allow the kgdb do_debug() die notifier to properly handle the exception and the attached debugger, or kgdb test suite, will only receive a single notification. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> CC: Frederic Weisbecker <fweisbec@gmail.com> CC: x86@kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6由 Linus Torvalds 提交于
* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: fix ni_daq_700 compilation pcmcia: IOCARD is also required for using IRQs
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic/io.h: allow people to override individual funcs bitops: remove duplicated extern declarations bitops: make asm-generic/bitops/find.h more generic asm-generic: kdebug.h: Checkpatch cleanup asm-generic: fcntl: make exported headers use strict posix types asm-generic: cmpxchg does not handle non-long arguments asm-generic: make atomic_add_unless a function
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: vfs: make no_llseek the default vfs: don't use BKL in default_llseek llseek: automatically add .llseek fop libfs: use generic_file_llseek for simple_attr mac80211: disallow seeks in minstrel debug code lirc: make chardev nonseekable viotape: use noop_llseek raw: use explicit llseek file operations ibmasmfs: use generic_file_llseek spufs: use llseek in all file operations arm/omap: use generic_file_llseek in iommu_debug lkdtm: use generic_file_llseek in debugfs net/wireless: use generic_file_llseek in debugfs drm: use noop_llseek
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: (30 commits) BKL: remove BKL from freevxfs BKL: remove BKL from qnx4 autofs4: Only declare function when CONFIG_COMPAT is defined autofs: Only declare function when CONFIG_COMPAT is defined ncpfs: Lock socket in ncpfs while setting its callbacks fs/locks.c: prepare for BKL removal BKL: Remove BKL from ncpfs BKL: Remove BKL from OCFS2 BKL: Remove BKL from squashfs BKL: Remove BKL from jffs2 BKL: Remove BKL from ecryptfs BKL: Remove BKL from afs BKL: Remove BKL from USB gadgetfs BKL: Remove BKL from autofs4 BKL: Remove BKL from isofs BKL: Remove BKL from fat BKL: Remove BKL from ext2 filesystem BKL: Remove BKL from do_new_mount() BKL: Remove BKL from cgroup BKL: Remove BKL from NTFS ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: block: autoconvert trivial BKL users to private mutex drivers: autoconvert trivial BKL users to private mutex ipmi: autoconvert trivial BKL users to private mutex mac: autoconvert trivial BKL users to private mutex mtd: autoconvert trivial BKL users to private mutex scsi: autoconvert trivial BKL users to private mutex Fix up trivial conflicts (due to addition of private mutex right next to deletion of a version string) in drivers/char/pcmcia/cm40[04]0_cs.c
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl由 Linus Torvalds 提交于
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: BKL: introduce CONFIG_BKL. dabusb: remove the BKL sunrpc: remove the big kernel lock init/main.c: remove BKL notations blktrace: remove the big kernel lock rtmutex-tester: make it build without BKL dvb-core: kill the big kernel lock dvb/bt8xx: kill the big kernel lock tlclk: remove big kernel lock fix rawctl compat ioctls breakage on amd64 and itanic uml: kill big kernel lock parisc: remove big kernel lock cris: autoconvert trivial BKL users alpha: kill big kernel lock isapnp: BKL removal s390/block: kill the big kernel lock hpet: kill BKL, add compat_ioctl
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由 Dominik Brodowski 提交于
Reported-by: NAnca Emanuel <anca.emanuel@gmail.com> Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
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- 22 10月, 2010 30 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip由 Linus Torvalds 提交于
* 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, 32-bit: Align percpu area and irq stacks to THREAD_SIZE x86: Move alloc_desk_mask variables inside ifdef x86-32: Align IRQ stacks properly x86: Remove CONFIG_4KSTACKS x86: Always use irq stacks Fixed up trivial conflicts in include/linux/{irq.h, percpu-defs.h}
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由 Linus Torvalds 提交于
Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Hpet: Avoid the comparator readback penalty
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由 Alan Cox 提交于
Fortunately this is only exploitable on very unusual hardware. [Reported a while ago but nothing happened so just fixing it] Signed-off-by: NAlan Cox <alan@linux.intel.com> Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Dominik Brodowski 提交于
Dave Hinds pointed out to me that 37979e15 will break b43 and ray_cs, as IOCARD is not -- as the name would suggest -- only needed for cards using IO ports. Instead, as it re-deines several pins, it is also required for using interrupts. Signed-off-by: NDominik Brodowski <linux@dominikbrodowski.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits) powerpc/44x: Update ppc44x_defconfig powerpc/watchdog: Make default timeout for Book-E watchdog a Kconfig option fsl_rio: Add comments for sRIO registers. powerpc/fsl-booke: Add e55xx (64-bit) smp defconfig powerpc/fsl-booke: Add p5020 DS board support powerpc/fsl-booke64: Use TLB CAMs to cover linear mapping on FSL 64-bit chips powerpc/fsl-booke: Add support for FSL Arch v1.0 MMU in setup_page_sizes powerpc/fsl-booke: Add support for FSL 64-bit e5500 core powerpc/85xx: add cache-sram support powerpc/85xx: add ngPIXIS FPGA device tree node to the P1022DS board powerpc: Fix compile error with paca code on ppc64e powerpc/fsl-booke: Add p3041 DS board support oprofile/fsl emb: Don't set MSR[PMM] until after clearing the interrupt. powerpc/fsl-booke: Add PCI device ids for P2040/P3041/P5010/P5020 QoirQ chips powerpc/mpc8xxx_gpio: Add support for 'qoriq-gpio' controllers powerpc/fsl_booke: Add support to boot from core other than 0 powerpc/p1022: Add probing for individual DMA channels powerpc/fsl_soc: Search all global-utilities nodes for rstccr powerpc: Fix invalid page flags in create TLB CAM path for PTE_64BIT powerpc/mpc83xx: Support for MPC8308 P1M board ... Fix up conflict with the generic irq_work changes in arch/powerpc/kernel/time.c
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev由 Linus Torvalds 提交于
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (26 commits) include/linux/libata.h: fix typo pata_bf54x: fix return type of bfin_set_devctl Drivers: ata: Makefile: replace the use of <module>-objs with <module>-y libahci: fix result_tf handling after an ATA PIO data-in command pata_sl82c105: implement sff_irq_check() method pata_sil680: implement sff_irq_check() method pata_pdc202xx_old: implement sff_irq_check() method pata_cmd640: implement sff_irq_check() method ata_piix: Add device ID for ICH4-L pata_sil680: make sil680_sff_exec_command() 'static' ata: Intel IDE-R support libata: reorder ata_queued_cmd to remove alignment padding on 64 bit builds libata: Signal that our SATL supports WRITE SAME(16) with UNMAP ata_piix: remove SIDPR locking libata: implement cross-port EH exclusion libata: add @ap to ata_wait_register() and introduce ata_msleep() ata_piix: implement LPM support libata: implement LPM support for port multipliers libata: reimplement link power management libata: implement sata_link_scr_lpm() and make ata_dev_set_feature() global ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2由 Linus Torvalds 提交于
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (48 commits) ocfs2: Avoid to evaluate xattr block flags again. ocfs2/cluster: Release debugfs file elapsed_time_in_ms ocfs2: Add a mount option "coherency=*" to handle cluster coherency for O_DIRECT writes. Initialize max_slots early When I tried to compile I got the following warning: fs/ocfs2/slot_map.c: In function ‘ocfs2_init_slot_info’: fs/ocfs2/slot_map.c:360: warning: ‘bytes’ may be used uninitialized in this function fs/ocfs2/slot_map.c:360: note: ‘bytes’ was declared here Compiler: gcc version 4.4.3 (GCC) on Mandriva I'm not sure why this warning occurs, I think compiler don't know that variable "bytes" is initialized when it is sent by reference to ocfs2_slot_map_physical_size and it throws that ugly warning. However, a simple initialization of "bytes" variable with 0 will fix it. ocfs2: validate bg_free_bits_count after update ocfs2/cluster: Bump up dlm protocol to version 1.1 ocfs2/cluster: Show per region heartbeat elapsed time ocfs2/cluster: Add mlogs for heartbeat up/down events ocfs2/cluster: Create debugfs dir/files for each region ocfs2/cluster: Create debugfs files for live, quorum and failed region bitmaps ocfs2/cluster: Maintain bitmap of failed regions ocfs2/cluster: Maintain bitmap of quorum regions ocfs2/cluster: Track bitmap of live heartbeat regions ocfs2/cluster: Track number of global heartbeat regions ocfs2/cluster: Maintain live node bitmap per heartbeat region ocfs2/cluster: Reorganize o2hb debugfs init ocfs2/cluster: Check slots for unconfigured live nodes ocfs2/cluster: Print messages when adding/removing nodes ocfs2/cluster: Print messages when adding/removing heartbeat regions ...
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由 Linus Torvalds 提交于
Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (74 commits) x86-64: Only set max_pfn_mapped to 512 MiB if we enter via head_64.S xen: Cope with unmapped pages when initializing kernel pagetable memblock, bootmem: Round pfn properly for memory and reserved regions memblock: Annotate memblock functions with __init_memblock memblock: Allow memblock_init to be called early memblock/arm: Fix memblock_region_is_memory() typo x86, memblock: Remove __memblock_x86_find_in_range_size() memblock: Fix wraparound in find_region() x86-32, memblock: Make add_highpages honor early reserved ranges x86, memblock: Fix crashkernel allocation arm, memblock: Fix the sparsemem build memblock: Fix section mismatch warnings powerpc, memblock: Fix memblock API change fallout memblock, microblaze: Fix memblock API change fallout x86: Remove old bootmem code x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve x86: Remove not used early_res code x86, memblock: Replace e820_/_early string with memblock_ x86: Use memblock to replace early_res x86, memblock: Use memblock_debug to control debug message print out ... Fix up trivial conflicts in arch/x86/kernel/setup.c and kernel/Makefile
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由 Andrea Gelmini 提交于
Signed-off-by: NAndrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Mike Frysinger 提交于
The new devctl func added for us to the driver has the wrong return type. Which is to say there shouldn't be any. This fixes compile time warnings as there shouldn't be any runtime difference. Signed-off-by: NMike Frysinger <vapier@gentoo.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tracey Dent 提交于
Changed <module>-objs to <module>-y in Makefile. Signed-off-by: NTracey Dent <tdent48227@gmail.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
ATA devices don't send D2H Reg FIS after an successful ATA PIO data-in command. The host is supposed to take the TF and E_Status of the preceding PIO Setup FIS. Update ahci_qc_fill_rtf() such that it takes TF + E_Status from PIO Setup FIS after a successful ATA PIO data-in command. Without this patch, result_tf for such a command is filled with the content of the previous D2H Reg FIS which belongs to a previous command, which can make the command incorrectly seen as failed. * Patch updated to grab the whole TF + E_Status from PIO Setup FIS instead of just E_Status as suggested by Robert Hancock. Signed-off-by: NTejun Heo <tj@kernel.org> Reported-by: NMark Lord <kernel@teksavvy.com> Cc: Robert Hancock <hancockrwd@gmail.com> Cc: stable@kernel.org Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Sergei Shtylyov 提交于
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Sergei Shtylyov 提交于
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Sergei Shtylyov 提交于
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Sergei Shtylyov 提交于
Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Ben Hutchings 提交于
ICH4-L is a variant of ICH4 lacking USB2 functionality and with some different device IDs. It is documented in Intel specification update 290745-025, currently at <http://www.intel.com/assets/pdf/specupdate/290745.pdf>, and is included in the device ID table for piix. Signed-off-by: NBen Hutchings <ben@decadent.org.uk> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Sergei Shtylyov 提交于
... since, of course, it's not used outside this driver. Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Alan Cox 提交于
Intel IDE-R devices are part of the Intel AMT management setup. They don't have any special configuration registers or settings so the ata_generic driver will support them fully. Rather than add a huge table of IDs for each chipset and keep sending in new ones this patch autodetects them. Signed-off-by: NAlan Cox <alan@linux.intel.com> Acked-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Richard Kennedy 提交于
Reorder structure ata_queued_cmd to remove 8 bytes of alignment padding on 64 bit builds & therefore reduce the size of structure ata_port by 256 bytes. Overall this will have little impact, other than reducing the amount of memory that is cleared when allocating ata_ports. Signed-off-by: NRichard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Martin K. Petersen 提交于
Until now identifying that a device supports WRITE SAME(16) with the UNMAP bit set has been black magic. Implement support for the SBC-3 Thin Provisioning VPD page and set the TPWS bit. Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
Now that libata provides proper cross-port EH exclusion. The SIDPR locking added by commit 213373cf (ata_piix: fix locking around SIDPR access) is no longer necessary. Remove it. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
In libata, the non-EH code paths should always take and release ap->lock explicitly when accessing hardware or shared data structures. However, once EH is active, it's assumed that the port is owned by EH and EH methods don't explicitly take ap->lock unless race from irq handler or other code paths are expected. However, libata EH didn't guarantee exclusion among EHs for ports of the same host. IOW, multiple EHs may execute in parallel on multiple ports of the same controller. In many cases, especially in SATA, the ports are completely independent of each other and this doesn't cause problems; however, there are cases where different ports share the same resource, which lead to obscure timing related bugs such as the one fixed by commit 213373cf (ata_piix: fix locking around SIDPR access). This patch implements exclusion among EHs of the same host. When EH begins, it acquires per-host EH ownership by calling ata_eh_acquire(). When EH finishes, the ownership is released by calling ata_eh_release(). EH ownership is also released whenever the EH thread goes to sleep from ata_msleep() or explicitly and reacquired after waking up. This ensures that while EH is actively accessing the hardware, it has exclusive access to it while allowing EHs to interleave and progress in parallel as they hit waiting stages, which dominate the time spent in EH. This achieves cross-port EH exclusion without pervasive and fragile changes while still allowing parallel EH for the most part. This was first reported by yuanding02@gmail.com more than three years ago in the following bugzilla. :-) https://bugzilla.kernel.org/show_bug.cgi?id=8223Signed-off-by: NTejun Heo <tj@kernel.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Reported-by: yuanding02@gmail.com Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
Add optional @ap argument to ata_wait_register() and replace msleep() calls with ata_msleep() which take optional @ap in addition to the duration. These will be used to implement EH exclusion. This patch doesn't cause any behavior difference. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
Now that DIPM can be used independently from HIPM, ata_piix can support LPM too. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
Port multipliers can do DIPM on fan-out links fine. Implement support for it. Tested w/ SIMG 57xx and marvell PMPs. Both the host and fan-out links enter power save modes nicely. SIMG 37xx and 47xx report link offline on SStatus causing EH to detach the devices. Blacklisted. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
The current LPM implementation has the following issues. * Operation order isn't well thought-out. e.g. HIPM should be configured after IPM in SControl is properly configured. Not the other way around. * Suspend/resume paths call ata_lpm_enable/disable() which must only be called from EH context directly. Also, ata_lpm_enable/disable() were called whether LPM was in use or not. * Implementation is per-port when it should be per-link. As a result, it can't be used for controllers with slave links or PMP. * LPM state isn't managed consistently. After a link reset for whatever reason including suspend/resume the actual LPM state would be reset leaving ap->lpm_policy inconsistent. * Generic/driver-specific logic boundary isn't clear. Currently, libahci has to mangle stuff which libata EH proper should be handling. This makes the implementation unnecessarily complex and fragile. * Tied to ALPM. Doesn't consider DIPM only cases and doesn't check whether the device allows HIPM. * Error handling isn't implemented. Given the extent of mismatch with the rest of libata, I don't think trying to fix it piecewise makes much sense. This patch reimplements LPM support. * The new implementation is per-link. The target policy is still port-wide (ap->target_lpm_policy) but all the mechanisms and states are per-link and integrate well with the rest of link abstraction and can work with slave and PMP links. * Core EH has proper control of LPM state. LPM state is reconfigured when and only when reconfiguration is necessary. It makes sure that LPM state is reset when probing for new device on the link. Controller agnostic logic is now implemented in libata EH proper and driver implementation only has to deal with controller specifics. * Proper error handling. LPM config failure is attributed to the device on the link and LPM is disabled for the link if it fails repeatedly. * ops->enable/disable_pm() are replaced with single ops->set_lpm() which takes @policy and @hints. This simplifies driver specific implementation. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
Link power management is about to be reimplemented. Prepare for it. * Implement sata_link_scr_lpm(). * Drop static from ata_dev_set_feature() and make it available to other libata files. * Trivial whitespace adjustments. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
Link power management related symbols are in confusing state w/ mixed usages of lpm, ipm and pm. This patch cleans up lpm related symbols and sysfs show/store functions as follows. * lpm states - NOT_AVAILABLE, MIN_POWER, MAX_PERFORMANCE and MEDIUM_POWER are renamed to ATA_LPM_UNKNOWN and ATA_LPM_{MIN|MAX|MED}_POWER. * Pre/postfixes are unified to lpm. * sysfs show/store functions for link_power_management_policy were curiously named get/put and unnecessarily complex. Renamed to show/store and simplified. Signed-off-by: NTejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Luck, Tony 提交于
This build error showed up in linux-next tag next-20100820 for ia64: WARNING: vmlinux.o(.init.text+0x4a952): Section mismatch in reference from the function ata_init() to the function .exit.text:ata_sff_exit() The function __init ata_init() references a function __exit ata_sff_exit(). This is often seen when error handling in the init function uses functionality in the exit path. The fix is often to remove the __exit annotation of ata_sff_exit() so it may be used outside an exit section. Sure enough, dropping the __exit fixes the problem. Signed-off-by: NTony Luck <tony.luck@intel.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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