The patch titled
mm: write_cache_pages more terminate quickly
has been added to the -mm tree. Its filename is
mm-write_cache_pages-more-terminate-quickly.patch
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------------------------------------------------------
Subject: mm: write_cache_pages more terminate quickly
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Now that we have the early-termination logic in place, it makes sense to
bail out early in all other cases where done is set to 1.
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
Cc: Chris Mason <chris.mason@xxxxxxxxxx>
Cc: Dave Chinner <david@xxxxxxxxxxxxx>
Cc: jim owens <jowens@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff -puN mm/page-writeback.c~mm-write_cache_pages-more-terminate-quickly mm/page-writeback.c
--- a/mm/page-writeback.c~mm-write_cache_pages-more-terminate-quickly
+++ a/mm/page-writeback.c
@@ -983,12 +983,15 @@ continue_unlock:
if (wbc->sync_mode == WB_SYNC_NONE) {
wbc->nr_to_write--;
- if (wbc->nr_to_write <= 0)
+ if (wbc->nr_to_write <= 0) {
done = 1;
+ break;
+ }
}
if (wbc->nonblocking && bdi_write_congested(bdi)) {
wbc->encountered_congestion = 1;
done = 1;
+ break;
}
}
pagevec_release(&pvec);
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
freezer_cg-use-thaw_process-in-unfreeze_cgroup.patch
fs-remove-prepare_write-commit_write.patch
nfsd-fix-vm-overcommit-crash.patch
autofs4-collect-version-check-return-checkpatch-fixes.patch
maintainers-make-ioat-easier-to-find.patch
mm-remove-the-might_sleep-from-lock_page.patch
linux-next.patch
linux-next-rejects.patch
next-remove-localversion.patch
arch-x86-kernel-setupc-omit-dmi_low_memory_corruption-when-it-is-unneeded.patch
tick-schedc-suppress-needless-timer-reprogramming.patch
linux-timexh-cleanup-for-userspace.patch
drivers-input-touchscreen-ucb1400_tsc-needs-gpio.patch
pci-uninline-pci_ioremap_bar.patch
cpusets-update-mems-allowed-in-page-allocator-fix.patch
scsi-dpt_i2o-is-bust-on-ia64.patch
mm-invoke-oom-killer-from-page-fault-fix.patch
mm-invoke-oom-killer-from-page-fault-fix-fix-2.patch
fs-truncate-blocks-outside-i_size-after-generic_file_direct_write-error-fix.patch
mm-write_cache_pages-more-terminate-quickly.patch
init-properly-placing-noinline-keyword.patch
oops-handling-ensure-that-any-oops-is-flushed-to-the-mtdoops-console-fix.patch
spi_gpio-driver-cleanups.patch
rtc-rtc-wm8350-add-support-for-wm8350-rtc.patch
rtc-basic-implementation-of-epson-rx-8581-i2c-real-time-clock-fix.patch
quota-permit-separately-enabling-quota-accounting-and-enforcing-limits-fix.patch
quota-move-quotaio_vh-from-include-linux-to-fs-fix.patch
quota-move-quotaio_vh-from-include-linux-to-fs-fix-2.patch
quota-convert-union-in-mem_dqinfo-to-a-pointer-cleanup.patch
quota-support-64-bit-quota-format-fix.patch
quota-support-64-bit-quota-format-fix-2.patch
memcg-introduce-charge-commit-cancel-style-of-functions-fix.patch
w1-export-w1_read_8-function-checkpatch-fixes.patch
nilfs2-inode-operations-fix.patch
nilfs2-pathname-operations-fix.patch
nilfs2-super-block-operations-fix.patch
reiser4.patch
reiser4-tree_lock-fixes.patch
reiser4-tree_lock-fixes-fix.patch
reiser4-semaphore-fix.patch
slb-drop-kmem-cache-argument-from-constructor-reiser4.patch
reiser4-suid.patch
reiser4-track-upstream-changes.patch
reiser4-broke.patch
nr_blockdev_pages-in_interrupt-warning.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
shrink_slab-handle-bad-shrinkers.patch
getblk-handle-2tb-devices.patch
getblk-handle-2tb-devices-fix.patch
undeprecate-pci_find_device.patch
notify_change-callers-must-hold-i_mutex.patch
profile-likely-unlikely-macros.patch
drivers-net-bonding-bond_sysfsc-suppress-uninitialized-var-warning.patch
w1-build-fix.patch
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