Tejun Heo
27943620cb
libata: implement spurious irq handling for SFF and apply it to piix ...
Traditional IDE interface sucks in that it doesn't have a reliable IRQ
pending bit, so if the controller raises IRQ while the driver is
expecting it not to, the IRQ won't be cleared and eventually the IRQ
line will be killed by interrupt subsystem. Some controllers have
non-standard mechanism to indicate IRQ pending so that this condition
can be detected and worked around.
This patch adds an optional operation ->sff_irq_check() which will be
called for each port from the ata_sff_interrupt() if an unexpected
interrupt is received. If the operation returns %true,
->sff_check_status() and ->sff_irq_clear() will be cleared for the
port. Note that this doesn't mark the interrupt as handled so it
won't prevent IRQ subsystem from killing the IRQ if this mechanism
fails to clear the spurious IRQ.
This patch also implements ->sff_irq_check() for ata_piix. Note that
this adds slight overhead to shared IRQ operation as IRQs which are
destined for other controllers will trigger extra register accesses to
check whether IDE interrupt is pending but this solves rare screaming
IRQ cases and for some curious reason also helps weird BIOS related
glitch on Samsung n130 as reported in bko#14314.
http://bugzilla.kernel.org/show_bug.cgi?id=14314
* piix_base_ops dropped as suggested by Sergei.
* Spurious IRQ detection doesn't kick in anymore if polling qc is in
progress. This provides less protection but some controllers have
possible data corruption issues if the wrong register is accessed
while a command is in progress.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Johannes Stezenbach <js@sig21.net>
Reported-by: Hans Werner <hwerner4@gmx.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-03-01 14:58:44 -05:00
ARM: 5951/1: ARM: fix documentation of the PrimeCell bus
2010-02-20 14:10:48 +00:00
can: Fix data length code handling in rx path
2009-12-13 19:47:42 -08:00
lib: add support for LZO-compressed kernels
2010-01-11 09:34:04 -08:00
OMAP4: PMIC: Add support for twl6030 codec
2010-02-24 13:17:03 +00:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2009-12-09 19:52:01 -08:00
mfd: tmio_mmc hardware abstraction for CNF area
2010-01-18 12:30:27 +01:00
mtd: sh_flctl SHBUSSEL and SEL_16BIT support
2010-02-02 13:02:16 +09:00
nfsd: move most of nfsfh.h to fs/nfsd
2009-12-15 15:01:46 -05:00
md: remove sparse warning:symbol XXX was not declared.
2009-12-14 12:49:47 +11:00
regulator: consumer.h - fix build when consumer.h is #included first.
2009-12-17 10:27:27 +00:00
Merge commit 'v2.6.33-rc6' into secretlab/next-spi
2010-02-02 01:05:22 -07:00
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
2009-12-16 10:47:44 -08:00
ALSA: usbaudio: consolidate header files
2010-02-23 08:51:56 +01:00
x86, ACPI: delete acpi_boot_table_init() return value
2010-01-06 16:18:15 -05:00
aio: remove unused field
2009-12-16 07:20:13 -08:00
libata: fix ata_id_logical_per_physical_sectors
2010-02-04 01:01:32 -05:00
atmel-mci: change use of dma slave interface
2009-12-15 08:53:35 -08:00
backlight: Constify struct backlight_ops
2009-12-16 11:33:46 +00:00
Split 'flush_old_exec' into two functions
2010-01-29 08:22:01 -08:00
bitmap: introduce bitmap_set, bitmap_clear, bitmap_find_next_zero_area
2009-12-16 07:20:18 -08:00
bitops: Ensure the compile time HWEIGHT is only used for such
2010-02-04 09:59:50 +01:00
block: Consolidate phys_segment and hw_segment limits
2010-02-26 13:58:08 +01:00
cciss: Consolidate duplicate bits in cciss_cmd.h & cciss_ioctl.h
2010-02-22 13:44:45 +01:00
cciss: Consolidate duplicate bits in cciss_cmd.h & cciss_ioctl.h
2010-02-22 13:44:45 +01:00
sched: Use lockdep-based checking on rcu_dereference()
2010-02-25 10:34:26 +01:00
clocksource: add suspend callback
2010-02-05 14:54:10 +01:00
percpu: add __percpu for sparse
2010-02-05 07:35:05 -08:00
connector: Delete buggy notification code.
2010-02-02 15:58:48 -08:00
rcu: Accelerate grace period if last non-dynticked CPU
2010-02-25 10:34:55 +01:00
sched: Use lockdep-based checking on rcu_dereference()
2010-02-25 10:34:26 +01:00
cs5535: define lxfb/gxfb MSRs in linux/cs5535.h
2009-12-15 08:53:28 -08:00
string: factorize skip_spaces and export it to be generally available
2009-12-15 08:53:32 -08:00
dm: export suspended state to targets
2009-12-10 23:52:27 +00:00
PM: Add facility for advanced testing of async suspend/resume
2010-02-26 20:39:10 +01:00
dm log: add flush callback fn
2009-12-10 23:52:01 +00:00
dm ioctl: retrieve status from inactive table
2009-12-10 23:52:22 +00:00
dm raid1: remove bio_endio from dm_rh_mark_nosync
2009-12-10 23:52:05 +00:00
dmaengine: clarify the meaning of the DMA_CTRL_ACK flag
2009-12-10 23:43:19 -07:00
drbd: The kernel code is now equivalent to out of tree release 8.3.7
2010-01-12 10:14:42 +01:00
drbd: Allow online resizing of DRBD devices while peer not reachable (needs to be explicitly forced)
2010-01-12 10:02:46 +01:00
dynamic_debug.h/kernel.h: Remove KBUILD_MODNAME from dynamic_pr_debug
2009-12-15 08:53:25 -08:00
efi.h: use %pUl to print UUIDs
2009-12-15 08:53:33 -08:00
Merge branch 'x86-ptrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:59:44 -08:00
[SCSI] enclosure: fix oops while iterating enclosure_status array
2009-12-10 08:54:14 -06:00
err.h: add helper function to simplify pointer error checking
2009-12-15 08:53:27 -08:00
eventfd - allow atomic read and waitqueue remove
2010-01-25 12:26:38 -02:00
ext2: Explicitly assign values to on-disk enum of filetypes
2009-12-10 15:02:51 +01:00
ext3: Unify log messages in ext3
2009-12-10 15:02:53 +01:00
ext3: Replace lock/unlock_super() with an explicit lock for resizing
2009-12-23 13:44:12 +01:00
ext3: quota macros cleanup [V2]
2009-12-23 13:33:54 +01:00
Merge branch 'xen/fbdev' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
2009-12-10 09:34:40 -08:00
vfs: Abstract rcu_dereference_check for files-fdtable use
2010-02-25 10:34:49 +01:00
fiemap: Add new extent flag FIEMAP_EXTENT_SHARED
2009-12-17 20:55:57 -08:00
switch alloc_file() to passing struct path
2009-12-16 12:16:42 -05:00
firewire: cdev: add_descriptor documentation fix
2010-01-26 20:54:50 +01:00
firewire: fix use of multiple AV/C devices, allow multiple FCP listeners
2009-12-29 19:58:16 +01:00
firmware_class: make request_firmware_nowait more useful
2009-12-11 11:24:52 -08:00
fs: inode - remove 8 bytes of padding on 64bits allowing 1 more objects/slab under slub
2010-02-19 10:41:13 -05:00
VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size
2009-12-17 10:58:17 -05:00
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:20:25 -08:00
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:20:25 -08:00
make generic_acl slightly more generic
2009-12-16 12:16:49 -05:00
genhd: overlapping variable definition
2010-01-11 14:32:44 +01:00
gpiolib: add support for changing value polarity in sysfs
2009-12-16 07:20:01 -08:00
Merge branches 'upstream', 'raw_report_modifications' and 'apple_magic_mouse' into for-linus
2010-02-25 17:39:16 +01:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/xfs-vipt
2010-02-26 17:05:10 -08:00
hrtimers: Convert to raw_spinlocks
2009-12-14 23:55:34 +01:00
hugetlb: derive huge pages nodes allowed from task mempolicy
2009-12-15 08:53:12 -08:00
perf: Make bp_len type to u64 generic across the arch
2010-02-04 01:07:12 +01:00
ARM: PNX4008: move i2c_adapter structure inside the drivers private data
2010-02-12 17:32:41 +00:00
i2c: Get rid of I2C_CLIENT_MODULE_PARM
2009-12-14 21:17:29 +01:00
block: Consolidate phys_segment and hw_segment limits
2010-02-26 13:58:08 +01:00
Input: i8042 - allow installing platform filters for incoming data
2009-12-11 23:55:42 -08:00
mac80211: fix peer HT capabilities
2009-12-21 11:32:27 -05:00
ima: rename ima_path_check to ima_file_check
2010-02-07 03:06:22 -05:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2009-12-09 19:43:33 -08:00
net: restore ip source validation
2009-12-25 17:30:22 -08:00
PM: Add initcall_debug style timing for suspend/resume
2009-12-15 20:42:06 +01:00
Revert "task_struct: make journal_info conditional"
2009-12-17 13:23:24 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
2010-02-25 14:42:39 -08:00
block: remove padding from io_context on 64bit builds
2010-02-26 14:00:43 +01:00
iommu-helper: use bitmap library
2009-12-16 07:20:18 -08:00
resource: add release_child_resources
2010-02-22 16:17:00 -08:00
ipc: HARD_MSGMAX should be higher not lower on 64bit
2009-12-16 07:20:10 -08:00
genirq: Fix documentation of default chip disable()
2010-01-13 11:14:18 +01:00
tty: isicom: sort out the board init logic
2009-12-11 15:18:07 -08:00
ext4, jbd2: Add barriers for file systems with exernal journals
2009-12-23 06:52:08 -05:00
kallsyms: remove deprecated print_fn_descriptor_symbol()
2009-12-15 08:53:26 -08:00
cciss: export linux/cciss_defs.h header
2010-02-23 08:38:42 +01:00
mm: export stable page flags
2009-12-16 12:19:59 +01:00
Merge branch 'sched/urgent' into sched/core
2010-02-08 08:55:46 +01:00
kexec: premit reduction of the reserved memory size
2009-12-16 07:20:13 -08:00
kfifo: Don't use integer as NULL pointer
2010-02-16 15:11:08 -08:00
kgdb: Fix kernel-doc format error in kgdb.h
2010-01-07 11:58:37 -06:00
kmemcheck: make bitfield annotations truly no-ops when disabled
2010-01-11 09:34:04 -08:00
kmsg_dump: Dump on crash_kexec as well
2009-12-31 19:45:04 +00:00
fix ksm.h breakage of nommu build
2009-12-16 06:56:12 -08:00
leds: leds-lp3944.h - remove unneeded includes
2009-12-17 11:41:51 +00:00
leds: leds-pca9532.h- indent with tabs, not spaces
2009-12-17 11:33:33 +00:00
leds: Add LED class driver for regulator driven LEDs.
2009-12-17 11:27:09 +00:00
libata: implement spurious irq handling for SFF and apply it to piix
2010-03-01 14:58:44 -05:00
lis3: selftest support
2009-12-15 08:53:36 -08:00
list: Introduce list_rotate_left()
2010-01-16 12:29:32 +01:00
lib: Introduce generic list_sort function
2010-01-12 21:02:00 -08:00
lmb: Add lmb_free()
2010-02-03 17:39:50 +11:00
rcu: Integrate rcu_dereference_check() message into lockdep
2010-02-25 09:41:01 +01:00
Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6
2009-12-16 12:36:49 -08:00
mm: Add notifier in pageblock isolation for balloon drivers
2009-12-18 14:53:36 +11:00
mm: memory_hotplug: make offline_pages() static
2009-12-15 08:53:20 -08:00
hugetlb: derive huge pages nodes allowed from task mempolicy
2009-12-15 08:53:12 -08:00
ksm: memory hotremove migration only
2009-12-15 08:53:20 -08:00
Merge branch 'linus' into x86/mm
2010-02-17 18:28:05 +01:00
nommu: don't need get_unmapped_area() for NOMMU
2010-01-16 12:15:40 -08:00
drop explicit include of autoconf.h
2009-12-12 13:08:15 +01:00
kbuild: move bounds.h to include/generated
2009-12-12 13:08:14 +01:00
Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"
2009-12-17 12:51:05 -08:00
module: make MODULE_SYMBOL_PREFIX into a CONFIG option
2009-12-15 16:28:26 +10:30
Fix f_flags/f_mode in case of lookup_instantiate_filp() from open(pathname, 3)
2009-12-22 12:27:34 -05:00
Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux
2009-12-16 10:43:34 -08:00
nfsd: Fix independence of a few nfsd related headers
2009-12-14 18:12:08 -05:00
hugetlb: offload per node attribute registrations
2009-12-15 08:53:13 -08:00
mm: add gfp flags for NODEMASK_ALLOC slab allocations
2009-12-15 08:53:13 -08:00
hugetlb: add generic definition of NUMA_NO_NODE
2009-12-15 08:53:12 -08:00
of/sparc: Remove sparc-local declaration of allnodes and devtree_lock
2010-02-14 13:02:44 -07:00
of/flattree: Don't assume HAVE_LMB
2010-02-14 07:13:47 -07:00
oom-kill: fix NUMA constraint check with nodemask
2009-12-16 07:19:57 -08:00
padata: Generic parallelization/serialization interface
2010-01-06 19:47:10 +11:00
Merge branch 'for-33' of git://repo.or.cz/linux-kbuild
2009-12-17 07:23:42 -08:00
memcg: cleanup mem_cgroup_move_parent()
2009-12-16 07:20:07 -08:00
mm: add new 'read_cache_page_gfp()' helper function
2010-01-27 09:20:03 -08:00
PCI / ACPI / PM: Platform support for PCI PME wake-up
2010-02-22 16:21:02 -08:00
Merge branch 'x86-pci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:59:18 -08:00
PCI: Make current and maximum bus speeds part of the PCI core
2010-02-22 16:15:17 -08:00
x86/PCI: irq and pci_ids patch for Intel Cougar Point DeviceIDs
2010-02-22 16:16:55 -08:00
percpu_counter: Make __percpu_counter_add an inline function on UP
2010-02-08 08:57:36 +01:00
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:20:25 -08:00
crypto: gcm - Add RFC4543 wrapper for GCM
2010-01-17 21:52:11 +11:00
phylib: Move workqueue initialization to a proper place
2010-01-19 01:59:02 -08:00
pktcdvd: use BIO list management functions
2010-02-24 08:30:08 +01:00
Driver Core: Early platform driver buffer
2009-12-11 11:24:55 -08:00
plist: Fix grammar mistake, and c-style mistake
2010-01-13 10:51:39 +01:00
PM: Allow device drivers to use dpm_wait()
2010-02-26 20:39:11 +01:00
PM / Runtime: Add sysfs switch for disabling device run-time PM
2010-02-26 20:39:08 +01:00
PNP: add interface to retrieve ACPI device from a PNPACPI device
2009-12-15 17:35:26 -05:00
core, x86: make LIST_POISON less deadly
2010-01-11 09:45:37 -08:00
ptrace: Fix ptrace_regset() comments and diagnose errors specifically
2010-02-23 13:45:26 -08:00
backlight: Pass device through notify callback in the pwm driver
2009-12-17 11:46:01 +00:00
quota: decouple fs reserved space from quota reservation
2009-12-23 13:33:54 +01:00
[SCSI] mpt2sas: Added raid transport support
2010-02-08 18:19:41 -06:00
rcu: Disable lockdep checking in RCU list-traversal primitives
2010-02-25 09:41:02 +01:00
rcu: Disable lockdep checking in RCU list-traversal primitives
2010-02-25 09:41:02 +01:00
rcu: Make non-RCU_PROVE_LOCKING rcu_read_lock_sched_held() understand boot
2010-02-27 09:53:52 +01:00
rcu: Make rcu_read_lock_sched_held() take boot time into account
2010-02-26 08:20:46 +01:00
rcu: Make rcu_read_lock_sched_held() take boot time into account
2010-02-26 08:20:46 +01:00
Merge branch 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing
2010-01-02 11:17:05 -08:00
resource: move kernel function inside __KERNEL__
2010-01-04 11:33:58 +01:00
PM: Asynchronous suspend and resume of devices
2010-02-26 20:39:09 +01:00
ksm: rmap_walk to remove_migation_ptes
2009-12-15 08:53:20 -08:00
rtmutes: Convert rtmutex.lock to raw_spinlock
2009-12-14 23:55:33 +01:00
net: Add checking to rcu_dereference() primitives
2010-02-25 09:41:03 +01:00
locking: Cleanup the name space completely
2009-12-14 23:55:33 +01:00
locking: Cleanup the name space completely
2009-12-14 23:55:33 +01:00
locking: Convert raw_rwlock to arch_rwlock
2009-12-14 23:55:32 +01:00
rwsem: fix rwsem_is_locked() bugs
2009-12-15 08:53:26 -08:00
Merge branch 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block
2010-03-01 09:00:29 -08:00
NOMMU: Optimise away the {dac_,}mmap_min_addr tests
2009-12-17 09:25:19 +11:00
ipc/sem.c: add a per-semaphore pending list
2009-12-16 07:20:10 -08:00
Input: serio - fix potential deadlock when unbinding drivers
2010-01-06 00:14:32 -08:00
sh: extend INTC with force_disable
2010-02-16 13:38:56 +09:00
make generic_acl slightly more generic
2009-12-16 12:16:49 -05:00
tracing, slab: Define kmem_cache_alloc_notrace ifdef CONFIG_TRACING
2009-12-11 09:17:02 +01:00
tracing, slab: Define kmem_cache_alloc_notrace ifdef CONFIG_TRACING
2009-12-11 09:17:02 +01:00
sm501: implement acceleration features
2009-12-16 07:20:04 -08:00
sony-laptop: add AVMode key mapping
2009-12-16 22:32:29 -05:00
locking: Cleanup the name space completely
2009-12-14 23:55:33 +01:00
locking: Cleanup the name space completely
2009-12-14 23:55:33 +01:00
locking: Cleanup the name space completely
2009-12-14 23:55:33 +01:00
locking: Implement new raw_spinlock
2009-12-14 23:55:32 +01:00
locking: Convert raw_rwlock to arch_rwlock
2009-12-14 23:55:32 +01:00
locking: Convert raw_rwlock functions to arch_rwlock
2009-12-14 23:55:32 +01:00
rcu: Add lockdep-enabled variants of rcu_dereference()
2010-02-25 09:41:00 +01:00
lib: Introduce strnstr()
2010-01-14 22:38:09 -05:00
swap: rework map_swap_page() again
2009-12-15 08:53:16 -08:00
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2010-02-28 10:20:25 -08:00
net: restore ip source validation
2009-12-25 17:30:22 -08:00
Driver core: bin_attribute parameters can often be const*
2009-12-23 11:23:43 -08:00
gpio: add GPIO driver for the Timberdale FPGA
2009-12-16 07:20:00 -08:00
ntp: Make time_esterror and time_maxerror static
2010-01-29 10:15:19 +01:00
sched: Fix vmark regression on big machines
2010-01-21 13:39:03 +01:00
ptrace: change tracehook_report_syscall_exit() to handle stepping
2009-12-16 07:20:08 -08:00
tty.h: make tty_port_get() static inline
2010-01-16 12:15:38 -08:00
maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write)
2010-01-07 11:58:36 -06:00
USB: implement non-tree resume ordering constraints for PCI host controllers
2010-02-26 20:39:12 +01:00
USB: usb-storage: add BAD_SENSE flag
2009-12-11 11:55:26 -08:00
usbdevfs: move compat_ioctl handling to devio.c
2009-12-10 22:55:37 +01:00
kbuild: move utsrelease.h to include/generated
2009-12-12 13:08:15 +01:00
V4L/DVB (14003): gspca_cpai1: New gspca subdriver for CPIA CPiA version 1 cams
2010-02-26 15:10:40 -03:00
virtio: Add ability to detach unused buffers from vrings
2010-02-24 14:22:27 +10:30
virtio: Add memory statistics reporting to the balloon driver (V4)
2010-02-24 14:22:08 +10:30
virtio_blk: add block topology support
2010-02-24 14:22:26 +10:30
virtio: console: Add ability to hot-unplug ports
2010-02-24 14:23:00 +10:30
vmscan: stop kswapd waiting on congestion when the min watermark is not being met
2009-12-15 08:53:16 -08:00
vt: don't export vt_kmsg_redirect() to userspace
2009-12-17 15:45:30 -08:00
fs-writeback: Add helper function to start writeback if idle
2009-12-23 07:57:07 -05:00
sanitize xattr handler prototypes
2009-12-16 12:16:49 -05:00
