Dave Chinner
6c60d2b574
fs/fs-writeback.c: add a new writeback list for sync ...
wait_sb_inodes() currently does a walk of all inodes in the filesystem
to find dirty one to wait on during sync. This is highly inefficient
and wastes a lot of CPU when there are lots of clean cached inodes that
we don't need to wait on.
To avoid this "all inode" walk, we need to track inodes that are
currently under writeback that we need to wait for. We do this by
adding inodes to a writeback list on the sb when the mapping is first
tagged as having pages under writeback. wait_sb_inodes() can then walk
this list of "inodes under IO" and wait specifically just for the inodes
that the current sync(2) needs to wait for.
Define a couple helpers to add/remove an inode from the writeback list
and call them when the overall mapping is tagged for or cleared from
writeback. Update wait_sb_inodes() to walk only the inodes under
writeback due to the sync.
With this change, filesystem sync times are significantly reduced for
fs' with largely populated inode caches and otherwise no other work to
do. For example, on a 16xcpu 2GHz x86-64 server, 10TB XFS filesystem
with a ~10m entry inode cache, sync times are reduced from ~7.3s to less
than 0.1s when the filesystem is fully clean.
Link: http://lkml.kernel.org/r/1466594593-6757-2-git-send-email-bfoster@redhat.com
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Tested-by: Holger Hoffstätte <holger.hoffstaette@applied-asynchrony.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-07-26 16:19:19 -07:00
x86/quirks: Add early quirk to reset Apple AirPort card
2016-07-10 20:13:53 +02:00
libceph: change ceph_osdmap_flag() to take osdc
2016-05-30 23:00:22 +02:00
dmaengine: hsu: Export hsu_dma_get_status()
2016-06-25 14:30:42 -07:00
extcon: adc-jack: add suspend/resume support
2016-07-02 14:31:34 +09:00
iio: st_sensors: harden interrupt handling
2016-07-02 20:40:15 +01:00
irqchip/gicv3-its: Implement two-level(indirect) device table support
2016-06-13 11:53:53 +01:00
mfd: da9053: Fix compiler warning message for uninitialised variable
2016-06-30 07:44:23 +01:00
net/mlx4_en: Avoid unregister_netdev at shutdown flow
2016-06-22 16:38:11 -04:00
net/mlx5: Add timeout handle to commands with callback
2016-07-01 06:12:03 -04:00
MMC core:
2016-05-26 09:36:10 -07:00
phy: Add set_mode callback
2016-07-04 17:19:22 +05:30
hwmon: add support for Sensirion SHT3x sensors
2016-06-27 18:58:03 -07:00
qed*: Don't reset statistics on inner reload
2016-06-19 10:47:32 -07:00
ARM: SoC driver updates for v4.7
2016-05-18 13:14:02 -07:00
rpc: share one xps between all backchannels
2016-06-15 10:32:25 -04:00
Merge 4.7-rc6 into usb-next
2016-07-04 08:19:21 -07:00
alarmtimer: Fix comments describing structure fields
2016-06-20 12:47:09 -07:00
Merge branch 'for-4.7-zac' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
2016-05-23 17:53:39 -07:00
locking/atomic: Introduce inc/dec variants for the atomic_fetch_$op() API
2016-07-07 09:16:20 +02:00
Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit
2016-06-29 15:18:47 -07:00
coredump: fix dumping through pipes
2016-06-07 22:07:09 -04:00
DAX error handling for 4.7
2016-05-26 19:34:26 -07:00
include/linux: apply __malloc attribute
2016-05-19 19:12:14 -07:00
bpf, perf: delay release of BPF prog after grace period
2016-06-29 05:42:55 -04:00
fs: export __block_write_full_page
2016-06-27 09:58:40 -05:00
clk: Remove CLK_IS_ROOT flag
2016-06-01 14:56:57 -07:00
clk: Add missing clk_get_sys() stub
2016-06-28 10:22:02 +02:00
clocksources: Switch back to the clksrc table
2016-06-28 10:19:35 +02:00
mm, oom, compaction: prevent from should_compact_retry looping for ever for costly orders
2016-05-20 17:58:30 -07:00
compiler.h: add support for malloc attribute
2016-05-19 19:12:14 -07:00
locking/barriers: Move smp_cond_load_acquire() to asm-generic/barrier.h
2016-06-14 11:55:14 +02:00
tty: vt, remove consw->con_bmove
2016-06-25 09:04:48 -07:00
tty: vt, remove unused vc_deccolm
2016-06-25 09:04:48 -07:00
x86/entry: Avoid interrupt flag save and restore
2016-07-10 13:33:02 +02:00
cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE
2016-06-02 23:05:27 +02:00
cpuset: use static key better and convert to new API
2016-05-19 19:12:14 -07:00
dax: remote unused fault wrappers
2016-07-26 16:19:19 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-06-20 10:41:51 -07:00
debugobjects.h: fix trivial kernel doc warning
2016-07-26 16:19:19 -07:00
driver core update for 4.7-rc1
2016-05-20 21:26:15 -07:00
devpts: Make each mount of devpts an independent filesystem.
2016-06-05 10:36:01 -07:00
dma-buf: headerdoc fixes
2016-05-31 22:12:43 +05:30
efi: Reorganize the GUID table to make it easier to read
2016-07-08 15:21:37 +02:00
make IS_ERR_VALUE() complain about non-pointer-sized arguments
2016-05-27 16:03:22 -07:00
extcon: Fix the wrong description about extcon_set/get_cable_state_()
2016-06-29 19:50:43 +09:00
staging/android: bring struct sync_pt back
2016-06-17 21:17:40 -07:00
rose: limit sk_filter trim to payload
2016-07-13 11:53:40 -07:00
fs/fs-writeback.c: add a new writeback list for sync
2016-07-26 16:19:19 -07:00
FS-Cache: make check_consistency callback return int
2016-06-01 10:29:39 +02:00
fsnotify: avoid spurious EMFILE errors from inotify_init()
2016-05-19 19:12:14 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
2016-05-17 17:11:27 -07:00
include/linux/genhd.h: move to use generic UUID library
2016-05-20 17:58:30 -07:00
printk/nmi: generic solution for safe printk in NMI
2016-05-20 17:58:30 -07:00
<linux/hash.h>: Add support for architecture-specific functions
2016-05-28 15:48:31 -04:00
mm: thp: move pmd check inside ptl for freeze_page()
2016-07-15 14:54:27 +09:00
include/linux/hugetlb.h: use bool instead of int for hugepage_migration_supported()
2016-05-20 17:58:30 -07:00
include/linux/hugetlb*.h: clean up code
2016-05-20 17:58:30 -07:00
mm/hugetlb: is_vm_hugetlb_page() can return bool
2016-05-19 19:12:14 -07:00
net: diag: add missing declarations
2016-06-10 23:22:55 -07:00
fix up initial thread stack pointer vs thread_info confusion
2016-06-24 17:07:33 -07:00
genirq: Add a helper to spread an affinity mask for MSI/MSI-X vectors
2016-07-04 12:25:14 +02:00
Merge branch 'irq/for-block' into irq/core
2016-07-04 12:26:05 +02:00
Merge branch 'irq/for-block' into irq/core
2016-07-04 12:26:05 +02:00
isa: Dummy isa_register_driver should return error code
2016-06-17 20:47:11 -07:00
locking/static_key: Fix concurrent static_key_slow_inc()
2016-06-24 08:23:16 +02:00
mm/kasan: add API to check memory regions
2016-05-20 17:58:30 -07:00
mm: mempool: kasan: don't poot mempool objects in quarantine
2016-06-24 17:23:52 -07:00
rcu: sysctl: Panic on RCU Stall
2016-06-15 16:00:05 -07:00
driver core update for 4.7-rc1
2016-05-20 21:26:15 -07:00
s390/kexec: consolidate crash_map/unmap_reserved_pages() and arch_kexec_protect(unprotect)_crashkres()
2016-05-23 17:04:14 -07:00
KVM: Create debugfs dir and stat files for each VM
2016-05-25 16:12:05 +02:00
leds: core: Fix brightness setting upon hardware blinking enabled
2016-06-08 11:47:06 +02:00
hlist: Add hlist_is_singular_node() helper
2016-07-07 10:35:07 +02:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2016-05-19 09:21:36 -07:00
mm: memcontrol: fix cgroup creation failure after many small jobs
2016-07-23 10:25:54 +09:00
mm: fix section mismatch warning
2016-05-27 15:23:32 -07:00
tmpfs: preliminary minor tidyups
2016-05-19 19:12:14 -07:00
include/linux: apply __malloc attribute
2016-05-19 19:12:14 -07:00
Revert "mm: make faultaround produce old ptes"
2016-06-24 17:23:52 -07:00
mm: update_lru_size do the __mod_zone_page_state
2016-05-19 19:12:14 -07:00
x86/vdso: Add mremap hook to vm_special_mapping
2016-07-08 14:17:51 +02:00
mm fix commmets: if SPARSEMEM, pgdata doesn't have page_ext
2016-05-20 17:58:30 -07:00
staging: fsl-mc: add support for device table matching
2016-06-26 17:14:03 -07:00
genirq/msi: Make use of affinity aware allocations
2016-07-04 12:25:14 +02:00
devpts: Make each mount of devpts an independent filesystem.
2016-06-05 10:36:01 -07:00
net: Don't forget pr_fmt on net_dbg_ratelimited for CONFIG_DYNAMIC_DEBUG
2016-06-15 22:07:57 -07:00
net: define gso types for IPx over IPv4 and IPv6
2016-05-20 18:03:15 -04:00
vlan: use a valid default mtu value for vlan over macsec
2016-07-16 20:15:02 -07:00
NFS client updates for Linux 4.7
2016-05-26 10:33:33 -07:00
nilfs2: fix block comments
2016-05-23 17:04:14 -07:00
Revert "perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86"
2016-07-10 20:58:36 +02:00
include/linux/nodemask.h: create next_node_in() helper
2016-05-19 19:12:14 -07:00
nvmem: Declare nvmem_cell_read() consistently
2016-06-25 07:42:55 -07:00
Merge branch 'clockevents/4.8' of http://git.linaro.org/people/daniel.lezcano/linux into timers/core
2016-07-07 15:41:13 +02:00
drivers: of: Fix of_pci.h header guard
2016-06-08 08:18:06 -05:00
drivers: of: add definition of early_init_dt_alloc_reserved_memory_arch
2016-06-09 14:38:22 -05:00
signal: make oom_flags a bool
2016-05-23 17:04:14 -07:00
kernel/padata.c: removed unused code
2016-05-19 19:12:14 -07:00
mm: use unsigned long constant for page flags
2016-05-20 17:58:30 -07:00
mm: check the return value of lookup_page_ext for all call sites
2016-06-03 15:06:22 -07:00
mm: rename _count, field of the struct page, to _refcount
2016-05-19 19:12:14 -07:00
mm: tighten fault_in_pages_writeable()
2016-05-20 17:58:30 -07:00
PCI changes for the v4.7 merge window:
2016-05-19 13:10:54 -07:00
percpu, locking: Revert ("percpu: Replace smp_read_barrier_depends() with lockless_dereference()")
2016-06-03 12:06:11 +02:00
printk/nmi: generic solution for safe printk in NMI
2016-05-20 17:58:30 -07:00
Merge branch 'linus' into perf/core, to refresh the branch
2016-06-08 09:26:46 +02:00
fs: poll/select/recvmmsg: use timespec64 for timeout events
2016-05-19 19:12:14 -07:00
posix_acl: de-union a_refcount and a_rcu
2016-07-11 13:48:02 -04:00
printk: Make the printk*once() variants return a value
2016-07-08 11:33:18 +02:00
pwm: Fix pwm_apply_args()
2016-06-23 18:37:05 +02:00
radix-tree: fix radix_tree_iter_retry() for tagged iterators.
2016-07-23 10:25:54 +09:00
x86, asm: use bool for bitops and other assembly outputs
2016-06-08 12:41:20 -07:00
rcu: Make call_rcu_tasks() tolerate first call with irqs disabled
2016-06-15 15:45:00 -07:00
reservation: add headerdoc comments
2016-05-31 22:12:43 +05:30
reset: TRIVIAL: Add line break at same place for similar APIs
2016-06-29 21:24:53 +02:00
mm: thp: refix false positive BUG in page_move_anon_rmap()
2016-07-15 14:54:27 +09:00
locking/rwsem: Convert sem->count to 'atomic_long_t'
2016-06-08 15:16:42 +02:00
sched/fair: Fix PELT integrity for new tasks
2016-06-27 12:17:53 +02:00
sctp: sctp_diag should dump sctp socket type
2016-05-31 11:59:06 -07:00
locking/seqcount: Re-fix raw_read_seqcount_latch()
2016-06-03 08:37:25 +02:00
tty/serial/8250: use mctrl_gpio helpers
2016-06-25 14:30:42 -07:00
earlycon: mark earlycon code as __used iif the caller is built-in
2016-06-25 14:31:04 -07:00
x86/sfi: Enable enumeration of SD devices
2016-07-13 09:24:51 +02:00
signal: move the "sig < SIGRTMIN" check into siginmask(sig)
2016-05-23 17:04:14 -07:00
net_sched: fix mirrored packets checksum
2016-07-01 16:19:34 -04:00
include/linux: apply __malloc attribute
2016-05-19 19:12:14 -07:00
mm: SLAB freelist randomization
2016-05-19 19:12:14 -07:00
mm: slub: remove unused virt_to_obj()
2016-05-26 15:35:44 -07:00
sock_diag: do not broadcast raw socket destruction
2016-06-28 09:08:51 -04:00
locking/spinlock, arch: Update and fix spin_unlock_wait() implementations
2016-06-14 11:55:15 +02:00
include/linux: apply __malloc attribute
2016-05-19 19:12:14 -07:00
fs/namei.c: Add hashlen_string() function
2016-05-28 15:42:50 -04:00
mm, oom: rework oom detection
2016-05-20 17:58:30 -07:00
include/linux/syscalls.h: use pid_t instead of int
2016-05-20 17:58:30 -07:00
thermal: add the note for set_trip_temp
2016-06-01 22:25:48 +08:00
time: Add time64_to_tm()
2016-06-20 12:47:15 -07:00
time: remove timespec_add_safe()
2016-05-19 19:12:14 -07:00
time: Make settimeofday error checking work again
2016-06-01 21:13:43 +02:00
timers: Remove set_timer_slack() leftovers
2016-07-07 10:35:09 +02:00
torture: Break online and offline functions out of torture_onoff()
2016-06-14 16:02:16 -07:00
This includes two new updates for the ftrace infrastructure.
2016-05-18 18:55:19 -07:00
TTY and Serial driver update for 4.7-rc1
2016-05-20 20:57:27 -07:00
signal: make oom_flags a bool
2016-05-23 17:04:14 -07:00
lib/uuid.c: remove FSF address
2016-05-20 17:58:30 -07:00
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
2016-05-23 11:48:48 -07:00
mm, page_alloc: inline zone_statistics
2016-05-19 19:12:14 -07:00
tty: vt, ignore PIO_UNIMAPCLR param
2016-06-25 09:04:48 -07:00
sched/cputime: Reorganize vtime native irqtime accounting headers
2016-07-14 10:42:35 +02:00
fs/fs-writeback.c: add a new writeback list for sync
2016-07-26 16:19:19 -07:00
switch ->setxattr() to passing dentry and inode separately
2016-05-27 20:09:16 -04:00
zsmalloc: require GFP in zs_malloc()
2016-05-20 17:58:30 -07:00
