Jens Axboe
abf137dd77
aio: make the lookup_ioctx() lockless ...
The mm->ioctx_list is currently protected by a reader-writer lock,
so we always grab that lock on the read side for doing ioctx
lookups. As the workload is extremely reader biased, turn this into
an rcu hlist so we can make lookup_ioctx() lockless. Get rid of
the rwlock and use a spinlock for providing update side exclusion.
There's usually only 1 entry on this list, so it doesn't make sense
to look into fancier data structures.
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-12-29 08:29:50 +01:00
can: Fix CAN_(EFF|RTR)_FLAG handling in can_filter
2008-12-03 15:52:35 -08:00
ASoC: Add WM8350 AudioPlus codec driver
2008-12-18 17:21:07 +00:00
mlx4_core: Add support for multiple completion event vectors
2008-12-22 07:15:03 -08:00
mmc: struct device - replace bus_id with dev_name(), dev_set_name()
2008-11-08 21:37:46 +01:00
[MTD] [NOR] Fix cfi_send_gen_cmd handling of x16 devices in x8 mode (v4)
2008-11-05 14:40:25 +01:00
netfilter: ctnetlink: fix missing CTA_NAT_SEQ_UNSPEC
2008-12-16 01:19:41 -08:00
netfilter: netns ebtables: part 2
2008-11-04 14:27:15 +01:00
netfilter: ip{,6}t_policy.h should include xp_policy.h
2008-11-20 15:59:56 +01:00
netfilter: ip{,6}t_policy.h should include xp_policy.h
2008-11-20 15:59:56 +01:00
spi: fix compile error
2008-10-30 11:38:47 -07:00
ssb: Fix DMA-API compilation for non-PCI systems
2008-11-10 13:50:19 -08:00
misc: replace NIPQUAD()
2008-10-31 00:56:49 -07:00
USB: fix comment about endianness of descriptors
2008-12-17 10:49:14 -08:00
Merge branch 'video' into release
2008-11-11 21:15:50 -05:00
aio: make the lookup_ioctx() lockless
2008-12-29 08:29:50 +01:00
atm: 32-bit ioctl compatibility
2008-12-03 22:12:38 -08:00
atm: 32-bit ioctl compatibility
2008-12-03 22:12:38 -08:00
Merge branch 'next' into for-linus
2008-12-25 11:40:09 +11:00
CRED: Make execve() take advantage of copy-on-write credentials
2008-11-14 10:39:24 +11:00
bio: add support for inlining a number of bio_vecs inside the bio
2008-12-29 08:29:50 +01:00
block: simplify empty barrier implementation
2008-12-29 08:28:45 +01:00
blktrace: port to tracepoints
2008-11-26 12:13:34 +01:00
block: Supress Buffer I/O errors when SCSI REQ_QUIET flag set
2008-12-29 08:28:44 +01:00
Add c2 port support
2008-11-12 17:17:18 -08:00
CRED: Inaugurate COW credentials
2008-11-14 10:39:23 +11:00
cgroups: tiny cleanups
2008-10-30 11:38:45 -07:00
pkt_sched: Control group classifier
2008-11-07 22:56:00 -08:00
clarify usage expectations for cnt32_to_63()
2008-11-09 11:17:33 -08:00
remove __ARCH_WANT_COMPAT_SYS_PTRACE
2008-11-30 11:00:15 -08:00
trace: profile all if conditionals
2008-11-23 11:41:01 +01:00
cpumask: introduce new API, without changing anything, v3
2008-11-09 21:09:54 +01:00
cpuset: update top cpuset's mems after adding a node
2008-11-19 18:49:58 -08:00
libcrc32c: Add crc32c_le macro
2008-12-25 11:01:43 +11:00
User namespaces: set of cleanups (v2)
2008-11-24 18:57:41 -05:00
crypto: hash - Export shash through hash
2008-12-25 11:01:33 +11:00
net: add DCNA attribute to the BCN interface for DCB
2008-12-21 20:10:29 -08:00
dccp ccid-2: Phase out the use of boolean Ack Vector sysctl
2008-12-08 01:19:06 -08:00
x86: vmware: look for DMI string in the product serial key
2008-11-04 13:59:00 -08:00
eth: Declare an optimized compare_ether_addr_64bits() function
2008-11-23 23:24:32 -08:00
ethtool: Add GGRO and SGRO ops
2008-12-15 23:44:31 -08:00
fb: SH-5 uses __raw I/O accessors now also, drop the special casing.
2008-12-22 18:44:05 +09:00
fddi: convert to new network device ops
2008-11-20 20:29:48 -08:00
filter: add SKF_AD_NLATTR_NEST to look for nested attributes
2008-11-20 00:49:27 -08:00
freezer_cg: use thaw_process() in unfreeze_cgroup()
2008-10-30 11:38:45 -07:00
Merge branch 'next' into for-linus
2008-12-25 11:40:09 +11:00
gianfar: Convert gianfar to an of_platform_driver
2008-12-16 15:29:15 -08:00
ftrace: enable format arguments checking
2008-12-21 09:46:45 +01:00
tracing/function-return-tracer: change the name into function-graph-tracer
2008-11-26 01:59:45 +01:00
block: make add_partition() return pointer to hd_struct
2008-11-18 15:08:56 +01:00
ftrace: split out hardirq ftrace code into own header
2008-11-06 22:20:46 +01:00
netdevice: Kill netdev->priv
2008-12-08 01:14:16 -08:00
HID: fix oops during suspend of unbound HID devices
2008-10-27 15:06:01 +01:00
Allow architectures to override copy_user_highpage()
2008-11-27 23:39:48 +00:00
hippi: convert driver to net_device_ops
2008-11-20 20:32:15 -08:00
hrtimer: clean up unused callback modes
2008-11-12 09:54:40 +01:00
amd74xx: workaround unreliable AltStatus register for nVidia controllers
2008-12-02 20:40:03 +01:00
lib/idr.c: fix rcu related race with idr_find
2008-12-01 19:55:25 -08:00
wireless: Incorrect LEAP authentication algorithm identifier.
2008-12-12 13:48:20 -05:00
bonding, net: Move last_rx update into bonding recv logic
2008-11-03 18:16:50 -08:00
Phonet: allocate separate ARP type for GPRS over a Phonet pipe
2008-12-17 15:47:48 -08:00
net: fix packet socket delivery in rx irq handler
2008-11-04 14:49:57 -08:00
TPROXY: implemented IP_RECVORIGDSTADDR socket option
2008-11-16 19:32:39 -08:00
adjust init section definitions
2008-10-29 22:02:09 +01:00
User namespaces: set of cleanups (v2)
2008-11-24 18:57:41 -05:00
Fix inotify watch removal/umount races
2008-11-15 12:26:44 -08:00
Merge branch 'topic/jack-mechanical' into to-push
2008-12-25 11:40:29 +01:00
io mapping: clean up #ifdefs
2008-11-03 18:21:45 +01:00
ipv6: Add IPV6_PKTINFO sticky option support to setsockopt()
2008-12-16 02:06:23 -08:00
irq.h: fix missing/extra kernel-doc
2008-11-23 10:52:45 +01:00
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2008-11-18 23:38:23 -08:00
kexec/i386: allocate page table pages dynamically
2008-10-31 10:01:56 +01:00
CRED: Make execve() take advantage of copy-on-write credentials
2008-11-14 10:39:24 +11:00
KEYS: Alter use of key instantiation link-to-keyring argument
2008-11-14 10:39:14 +11:00
KVM: Future-proof device assignment ABI
2008-10-28 14:22:15 +02:00
KVM: Fix guest shared interrupt with in-kernel irqchip
2008-10-28 14:21:34 +02:00
libata: blacklist Seagate drives which time out FLUSH_CACHE when used with NCQ
2008-12-01 13:49:27 -05:00
i386: get rid of the use of KPROBE_ENTRY / KPROBE_END
2008-11-27 12:37:54 +01:00
rcu: Introduce hlist_nulls variant of hlist
2008-11-16 19:37:55 -08:00
lockdep: include/linux/lockdep.h - fix warning in net/bluetooth/af_bluetooth.c
2008-11-13 23:19:10 -08:00
markers: comment marker_synchronize_unregister() on data dependency
2008-11-28 16:47:41 +01:00
phylib: make mdio-gpio work without OF (v4)
2008-11-16 18:59:45 -08:00
hotplug_memory_notifier section annotation
2008-11-30 10:03:38 -08:00
net: Refactor full duplex flow control resolution
2008-12-16 02:00:48 -08:00
Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-28 12:21:10 -08:00
aio: make the lookup_ioctx() lockless
2008-12-29 08:29:50 +01:00
HID: fix hid_device_id for cross compiling
2008-10-29 00:51:25 +01:00
netns: ip6mr: enable namespace support in ipv6 multicast forwarding code
2008-12-10 16:30:15 -08:00
fat: Cleanup FAT attribute stuff
2008-11-06 15:41:21 -08:00
reintroduce accept4
2008-11-19 18:49:57 -08:00
net: Remove unused netdev arg from some NAPI interfaces.
2008-12-22 20:43:12 -08:00
netlink: avoid memset of 0 bytes sparse warning
2008-11-20 04:08:29 -08:00
net: Add Generic Receive Offload infrastructure
2008-12-15 23:38:52 -08:00
mac80211: Fix HT channel selection
2008-12-19 15:22:54 -05:00
User namespaces: set of cleanups (v2)
2008-11-24 18:57:41 -05:00
of: Add helpers for finding device nodes which have a given property
2008-11-19 16:05:00 +11:00
of/gpio: Implement of_gpio_count()
2008-12-21 14:21:14 +11:00
meminit section warnings
2008-11-30 10:03:35 -08:00
Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core
2008-12-23 16:27:23 +01:00
Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirks
2008-10-28 16:26:12 +01:00
revert "percpu_counter: new function percpu_counter_sum_and_set"
2008-12-10 08:01:52 -08:00
phy: power management support
2008-11-28 16:24:56 -08:00
pid: fix the do_each_pid_task() macro
2008-12-04 09:09:37 +01:00
pkt_sched: Control group classifier
2008-11-07 22:56:00 -08:00
pkt_sched: add DRR scheduler
2008-11-20 04:10:00 -08:00
x86, bts: add fork and exit handling
2008-12-20 09:15:46 +01:00
remove ratelimt()
2008-11-12 17:17:17 -08:00
udp: Use hlist_nulls in UDP RCU code
2008-11-16 19:39:21 -08:00
rcu: Introduce hlist_nulls variant of hlist
2008-11-16 19:37:55 -08:00
rcu: add rcu_read_*_sched_notrace()
2008-11-16 09:01:25 +01:00
mm: increase the default mlock limit from 32k to 64k
2008-10-30 11:38:45 -07:00
rfkill: strip pointless notifier chain
2008-12-12 14:45:25 -05:00
ring_buffer: fix comments
2008-12-08 13:54:05 +01:00
rapidio: struct device - replace bus_id with dev_name(), dev_set_name()
2008-12-16 15:53:41 +11:00
ixgbe: this patch adds support for DCB to the kernel and ixgbe driver
2008-11-20 20:52:10 -08:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-28 12:27:58 -08:00
CRED: Wrap current->cred and a few other accessors
2008-11-14 10:39:18 +11:00
security: pass mount flags to security_sb_kern_mount()
2008-12-20 09:02:39 +11:00
vfs, seqfile: make mangle_path() global
2008-11-23 09:45:39 +01:00
serial: sh-sci: fix cannot work SH7723 SCIFA
2008-11-12 12:29:56 +09:00
net: Add skb_gro_receive
2008-12-15 23:42:33 -08:00
slab: document SLAB_DESTROY_BY_RCU
2008-11-13 20:49:02 +02:00
Define smp_call_function_many for UP
2008-12-15 16:28:57 -08:00
smsc911x: add dynamic bus configuration
2008-12-10 15:12:45 -08:00
tcp: add some mibs to track collapsing
2008-11-24 21:27:22 -08:00
tracing/stack-tracer: introduce CONFIG_USER_STACKTRACE_SUPPORT
2008-11-23 11:53:50 +01:00
linux/string.h: fix comment typo
2008-11-02 10:15:07 -08:00
reintroduce accept4
2008-11-19 18:49:57 -08:00
telephony: trivial: fix up email address
2008-11-11 09:30:23 -08:00
Add round_jiffies_up and related routines
2008-11-06 08:42:48 +01:00
sched: let arch_update_cpu_topology indicate if topology changed
2008-12-12 13:47:21 +01:00
tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()
2008-11-16 09:01:36 +01:00
Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-28 12:21:10 -08:00
USB: don't register endpoints for interfaces that are going away
2008-11-13 14:45:00 -08:00
User namespaces: set of cleanups (v2)
2008-11-24 18:57:41 -05:00
virtio_net: VIRTIO_NET_F_MSG_RXBUF (imprive rcv buffer allocation)
2008-11-16 22:41:34 -08:00
cpumask: introduce new API, without changing anything
2008-11-06 09:05:33 +01:00
xfrm: Notify changes in UDP encapsulation via netlink
2008-10-28 16:01:07 -07:00
