* + nfs-remove-congestion_end.patch added to -mm tree
@ 2007-04-21 9:55 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2007-04-21 9:55 UTC (permalink / raw)
To: mm-commits; +Cc: a.p.zijlstra, trond.myklebust
The patch titled
nfs: remove congestion_end()
has been added to the -mm tree. Its filename is
nfs-remove-congestion_end.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: nfs: remove congestion_end()
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
It's redundant, clear_bdi_congested() already wakes the waiters.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
fs/nfs/write.c | 4 +---
include/linux/backing-dev.h | 1 -
mm/backing-dev.c | 13 -------------
3 files changed, 1 insertion(+), 17 deletions(-)
diff -puN fs/nfs/write.c~nfs-remove-congestion_end fs/nfs/write.c
--- a/fs/nfs/write.c~nfs-remove-congestion_end
+++ a/fs/nfs/write.c
@@ -237,10 +237,8 @@ static void nfs_end_page_writeback(struc
struct nfs_server *nfss = NFS_SERVER(inode);
end_page_writeback(page);
- if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) {
+ if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
clear_bdi_congested(&nfss->backing_dev_info, WRITE);
- congestion_end(WRITE);
- }
}
/*
diff -puN include/linux/backing-dev.h~nfs-remove-congestion_end include/linux/backing-dev.h
--- a/include/linux/backing-dev.h~nfs-remove-congestion_end
+++ a/include/linux/backing-dev.h
@@ -94,7 +94,6 @@ void clear_bdi_congested(struct backing_
void set_bdi_congested(struct backing_dev_info *bdi, int rw);
long congestion_wait(int rw, long timeout);
long congestion_wait_interruptible(int rw, long timeout);
-void congestion_end(int rw);
#define bdi_cap_writeback_dirty(bdi) \
(!((bdi)->capabilities & BDI_CAP_NO_WRITEBACK))
diff -puN mm/backing-dev.c~nfs-remove-congestion_end mm/backing-dev.c
--- a/mm/backing-dev.c~nfs-remove-congestion_end
+++ a/mm/backing-dev.c
@@ -70,16 +70,3 @@ long congestion_wait_interruptible(int r
return ret;
}
EXPORT_SYMBOL(congestion_wait_interruptible);
-
-/**
- * congestion_end - wake up sleepers on a congested backing_dev_info
- * @rw: READ or WRITE
- */
-void congestion_end(int rw)
-{
- wait_queue_head_t *wqh = &congestion_wqh[rw];
-
- if (waitqueue_active(wqh))
- wake_up(wqh);
-}
-EXPORT_SYMBOL(congestion_end);
_
Patches currently in -mm which might be from a.p.zijlstra@chello.nl are
lumpy-reclaim-v4.patch
split-mmap.patch
only-allow-nonlinear-vmas-for-ram-backed-filesystems.patch
mm-remove-destroy_dirty_buffers-from-invalidate_bdev.patch
mm-optimize-kill_bdev.patch
mm-optimize-kill_bdev-fix.patch
mm-optimize-acorn-partition-truncate.patch
lazy-freeing-of-memory-through-madv_free.patch
lazy-freeing-of-memory-through-madv_free-fix.patch
lazy-freeing-of-memory-through-madv_free-vs-mm-madvise-avoid-exclusive-mmap_sem.patch
restore-madv_dontneed-to-its-original-linux-behaviour.patch
exec-fix-remove_arg_zero-add-comment.patch
lockdep-treats-down_write_trylock-like-regular-down_write.patch
nfs-fix-congestion-control-use-atomic_longs.patch
nfs-remove-congestion_end.patch
lib-dampen-the-percpu_counter-fbc_batch.patch
lib-percpu_counter_mod64.patch
mm-bdi-init-hooks.patch
mm-scalable-bdi-statistics-counters.patch
mm-count-reclaimable-pages-per-bdi.patch
mm-count-writeback-pages-per-bdi.patch
mm-expose-bdi-statistics-in-sysfs.patch
mm-per-device-dirty-threshold.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
* + nfs-remove-congestion_end.patch added to -mm tree
@ 2007-08-06 20:18 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2007-08-06 20:18 UTC (permalink / raw)
To: mm-commits; +Cc: a.p.zijlstra
The patch titled
nfs: remove congestion_end()
has been added to the -mm tree. Its filename is
nfs-remove-congestion_end.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: nfs: remove congestion_end()
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
It's redundant, clear_bdi_congested() already wakes the waiters.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
fs/nfs/write.c | 4 +---
include/linux/backing-dev.h | 1 -
mm/backing-dev.c | 13 -------------
3 files changed, 1 insertion(+), 17 deletions(-)
diff -puN fs/nfs/write.c~nfs-remove-congestion_end fs/nfs/write.c
--- a/fs/nfs/write.c~nfs-remove-congestion_end
+++ a/fs/nfs/write.c
@@ -235,10 +235,8 @@ static void nfs_end_page_writeback(struc
struct nfs_server *nfss = NFS_SERVER(inode);
end_page_writeback(page);
- if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) {
+ if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
clear_bdi_congested(&nfss->backing_dev_info, WRITE);
- congestion_end(WRITE);
- }
}
/*
diff -puN include/linux/backing-dev.h~nfs-remove-congestion_end include/linux/backing-dev.h
--- a/include/linux/backing-dev.h~nfs-remove-congestion_end
+++ a/include/linux/backing-dev.h
@@ -93,7 +93,6 @@ static inline int bdi_rw_congested(struc
void clear_bdi_congested(struct backing_dev_info *bdi, int rw);
void set_bdi_congested(struct backing_dev_info *bdi, int rw);
long congestion_wait(int rw, long timeout);
-void congestion_end(int rw);
#define bdi_cap_writeback_dirty(bdi) \
(!((bdi)->capabilities & BDI_CAP_NO_WRITEBACK))
diff -puN mm/backing-dev.c~nfs-remove-congestion_end mm/backing-dev.c
--- a/mm/backing-dev.c~nfs-remove-congestion_end
+++ a/mm/backing-dev.c
@@ -54,16 +54,3 @@ long congestion_wait(int rw, long timeou
return ret;
}
EXPORT_SYMBOL(congestion_wait);
-
-/**
- * congestion_end - wake up sleepers on a congested backing_dev_info
- * @rw: READ or WRITE
- */
-void congestion_end(int rw)
-{
- wait_queue_head_t *wqh = &congestion_wqh[rw];
-
- if (waitqueue_active(wqh))
- wake_up(wqh);
-}
-EXPORT_SYMBOL(congestion_end);
_
Patches currently in -mm which might be from a.p.zijlstra@chello.nl are
radix-tree-use-indirect-bit.patch
nfs-remove-congestion_end.patch
lib-percpu_counter_add.patch
lib-percpu_counter-variable-batch.patch
lib-make-percpu_counter_add-take-s64.patch
lib-percpu_counter_set.patch
lib-percpu_counter_sum_positive.patch
lib-percpu_count_sum.patch
lib-percpu_counter_init-error-handling.patch
lib-percpu_counter_init_irq.patch
mm-bdi-init-hooks.patch
mtd-bdi-init-hooks.patch
mtd-clean-up-the-backing_dev_info-usage.patch
mtd-give-mtdconcat-devices-their-own-backing_dev_info.patch
mm-scalable-bdi-statistics-counters.patch
mm-count-reclaimable-pages-per-bdi.patch
mm-count-writeback-pages-per-bdi.patch
mm-expose-bdi-statistics-in-sysfs.patch
lib-floating-proportions.patch
lib-floating-proportions-_single.patch
mm-per-device-dirty-threshold.patch
mm-dirty-balancing-for-tasks.patch
debug-sysfs-files-for-the-current-ratio-size-total.patch
intel-iommu-dmar-detection-and-parsing-logic.patch
intel-iommu-pci-generic-helper-function.patch
intel-iommu-clflush_cache_range-now-takes-size-param.patch
intel-iommu-iova-allocation-and-management-routines.patch
intel-iommu-intel-iommu-driver.patch
intel-iommu-avoid-memory-allocation-failures-in-dma-map-api-calls.patch
intel-iommu-intel-iommu-cmdline-option-forcedac.patch
intel-iommu-dmar-fault-handling-support.patch
intel-iommu-iommu-gfx-workaround.patch
intel-iommu-iommu-floppy-workaround.patch
containers-bdi-init-hooks.patch
workqueue-debug-flushing-deadlocks-with-lockdep.patch
workqueue-debug-work-related-deadlocks-with-lockdep.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
* + nfs-remove-congestion_end.patch added to -mm tree
@ 2007-09-14 11:20 akpm
0 siblings, 0 replies; 3+ messages in thread
From: akpm @ 2007-09-14 11:20 UTC (permalink / raw)
To: mm-commits; +Cc: a.p.zijlstra, bfields, trond.myklebust
The patch titled
nfs: remove congestion_end()
has been added to the -mm tree. Its filename is
nfs-remove-congestion_end.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: nfs: remove congestion_end()
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
These patches aim to improve balance_dirty_pages() and directly address three
issues:
1) inter device starvation
2) stacked device deadlocks
3) inter process starvation
1 and 2 are a direct result from removing the global dirty limit and using
per device dirty limits. By giving each device its own dirty limit is will
no longer starve another device, and the cyclic dependancy on the dirty limit
is broken.
In order to efficiently distribute the dirty limit across the independant
devices a floating proportion is used, this will allocate a share of the total
limit proportional to the device's recent activity.
3 is done by also scaling the dirty limit proportional to the current task's
recent dirty rate.
This patch:
nfs: remove congestion_end(). It's redundant, clear_bdi_congested() already
wakes the waiters.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
fs/nfs/write.c | 4 +---
include/linux/backing-dev.h | 1 -
mm/backing-dev.c | 13 -------------
3 files changed, 1 insertion(+), 17 deletions(-)
diff -puN fs/nfs/write.c~nfs-remove-congestion_end fs/nfs/write.c
--- a/fs/nfs/write.c~nfs-remove-congestion_end
+++ a/fs/nfs/write.c
@@ -242,10 +242,8 @@ static void nfs_end_page_writeback(struc
struct nfs_server *nfss = NFS_SERVER(inode);
end_page_writeback(page);
- if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH) {
+ if (atomic_long_dec_return(&nfss->writeback) < NFS_CONGESTION_OFF_THRESH)
clear_bdi_congested(&nfss->backing_dev_info, WRITE);
- congestion_end(WRITE);
- }
}
/*
diff -puN include/linux/backing-dev.h~nfs-remove-congestion_end include/linux/backing-dev.h
--- a/include/linux/backing-dev.h~nfs-remove-congestion_end
+++ a/include/linux/backing-dev.h
@@ -93,7 +93,6 @@ static inline int bdi_rw_congested(struc
void clear_bdi_congested(struct backing_dev_info *bdi, int rw);
void set_bdi_congested(struct backing_dev_info *bdi, int rw);
long congestion_wait(int rw, long timeout);
-void congestion_end(int rw);
#define bdi_cap_writeback_dirty(bdi) \
(!((bdi)->capabilities & BDI_CAP_NO_WRITEBACK))
diff -puN mm/backing-dev.c~nfs-remove-congestion_end mm/backing-dev.c
--- a/mm/backing-dev.c~nfs-remove-congestion_end
+++ a/mm/backing-dev.c
@@ -54,16 +54,3 @@ long congestion_wait(int rw, long timeou
return ret;
}
EXPORT_SYMBOL(congestion_wait);
-
-/**
- * congestion_end - wake up sleepers on a congested backing_dev_info
- * @rw: READ or WRITE
- */
-void congestion_end(int rw)
-{
- wait_queue_head_t *wqh = &congestion_wqh[rw];
-
- if (waitqueue_active(wqh))
- wake_up(wqh);
-}
-EXPORT_SYMBOL(congestion_end);
_
Patches currently in -mm which might be from a.p.zijlstra@chello.nl are
radix-tree-use-indirect-bit.patch
nfs-remove-congestion_end.patch
lib-percpu_counter_add.patch
lib-percpu_counter_sub.patch
lib-percpu_counter-variable-batch.patch
lib-make-percpu_counter_add-take-s64.patch
lib-percpu_counter_set.patch
lib-percpu_counter_sum_positive.patch
lib-percpu_count_sum.patch
lib-percpu_counter_init-error-handling.patch
lib-percpu_counter_init_irq.patch
mm-bdi-init-hooks.patch
mtd-bdi-init-hooks.patch
mtd-clean-up-the-backing_dev_info-usage.patch
mtd-give-mtdconcat-devices-their-own-backing_dev_info.patch
mm-scalable-bdi-statistics-counters.patch
mm-count-reclaimable-pages-per-bdi.patch
mm-count-writeback-pages-per-bdi.patch
mm-expose-bdi-statistics-in-sysfs.patch
lib-floating-proportions.patch
mm-per-device-dirty-threshold.patch
mm-dirty-balancing-for-tasks.patch
debug-sysfs-files-for-the-current-ratio-size-total.patch
intel-iommu-dmar-detection-and-parsing-logic.patch
intel-iommu-pci-generic-helper-function.patch
intel-iommu-clflush_cache_range-now-takes-size-param.patch
intel-iommu-iova-allocation-and-management-routines.patch
intel-iommu-intel-iommu-driver.patch
intel-iommu-avoid-memory-allocation-failures-in-dma-map-api-calls.patch
intel-iommu-intel-iommu-cmdline-option-forcedac.patch
intel-iommu-dmar-fault-handling-support.patch
intel-iommu-iommu-gfx-workaround.patch
intel-iommu-iommu-floppy-workaround.patch
task-containersv11-shared-container-subsystem-group-arrays-avoid-lockdep-warning.patch
task-containersv11-shared-container-subsystem-group-arrays-include-fix.patch
containers-bdi-init-hooks.patch
workqueue-debug-flushing-deadlocks-with-lockdep.patch
workqueue-debug-work-related-deadlocks-with-lockdep.patch
memory-controller-add-documentation.patch
memory-controller-resource-counters-v7.patch
memory-controller-containers-setup-v7.patch
memory-controller-accounting-setup-v7.patch
memory-controller-memory-accounting-v7.patch
memory-controller-task-migration-v7.patch
memory-controller-add-per-container-lru-and-reclaim-v7.patch
memory-controller-add-per-container-lru-and-reclaim-v7-fix.patch
memory-controller-improve-user-interface.patch
memory-controller-oom-handling-v7.patch
memory-controller-add-switch-to-control-what-type-of-pages-to-limit-v7.patch
memory-controller-make-page_referenced-container-aware-v7.patch
memory-controller-make-charging-gfp-mask-aware.patch
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2007-09-14 11:21 UTC | newest]
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2007-08-06 20:18 + nfs-remove-congestion_end.patch added to -mm tree akpm
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2007-09-14 11:20 akpm
2007-04-21 9:55 akpm
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