There is no reason nr_pages_dirtied is argument anymore.
because nr_pages_dirtied value from caller is not used in
balance_dirty_pages_ratelimited_nr function.
Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Vivek Trivedi <[email protected]>
---
fs/btrfs/disk-io.c | 8 ++++----
fs/btrfs/file.c | 3 +--
fs/btrfs/ioctl.c | 2 +-
fs/ocfs2/file.c | 5 +----
fs/splice.c | 5 +----
include/linux/writeback.h | 9 +--------
mm/page-writeback.c | 11 +++++------
7 files changed, 14 insertions(+), 29 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 62e0caf..10b6128 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3344,8 +3344,8 @@ void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
num_dirty = root->fs_info->dirty_metadata_bytes;
if (num_dirty > thresh) {
- balance_dirty_pages_ratelimited_nr(
- root->fs_info->btree_inode->i_mapping, 1);
+ balance_dirty_pages_ratelimited(
+ root->fs_info->btree_inode->i_mapping);
}
return;
}
@@ -3365,8 +3365,8 @@ void __btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
num_dirty = root->fs_info->dirty_metadata_bytes;
if (num_dirty > thresh) {
- balance_dirty_pages_ratelimited_nr(
- root->fs_info->btree_inode->i_mapping, 1);
+ balance_dirty_pages_ratelimited(
+ root->fs_info->btree_inode->i_mapping);
}
return;
}
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index f6b40e8..0dae684 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1314,8 +1314,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
cond_resched();
- balance_dirty_pages_ratelimited_nr(inode->i_mapping,
- dirty_pages);
+ balance_dirty_pages_ratelimited(inode->i_mapping);
if (dirty_pages < (root->leafsize >> PAGE_CACHE_SHIFT) + 1)
btrfs_btree_balance_dirty(root, 1);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 7bb7556..df2e9fb 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1199,7 +1199,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
}
defrag_count += ret;
- balance_dirty_pages_ratelimited_nr(inode->i_mapping, ret);
+ balance_dirty_pages_ratelimited(inode->i_mapping);
mutex_unlock(&inode->i_mutex);
if (newer_than) {
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 46a1f6d..a83c964 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2515,18 +2515,15 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
ret = sd.num_spliced;
if (ret > 0) {
- unsigned long nr_pages;
int err;
- nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-
err = generic_write_sync(out, *ppos, ret);
if (err)
ret = err;
else
*ppos += ret;
- balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
+ balance_dirty_pages_ratelimited(mapping);
}
return ret;
diff --git a/fs/splice.c b/fs/splice.c
index 41514dd..36b6c17 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -1024,17 +1024,14 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
ret = sd.num_spliced;
if (ret > 0) {
- unsigned long nr_pages;
int err;
- nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
-
err = generic_write_sync(out, *ppos, ret);
if (err)
ret = err;
else
*ppos += ret;
- balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
+ balance_dirty_pages_ratelimited(mapping);
}
sb_end_write(inode->i_sb);
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 50c3e8f..b82a83a 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -161,14 +161,7 @@ void __bdi_update_bandwidth(struct backing_dev_info *bdi,
unsigned long start_time);
void page_writeback_init(void);
-void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
- unsigned long nr_pages_dirtied);
-
-static inline void
-balance_dirty_pages_ratelimited(struct address_space *mapping)
-{
- balance_dirty_pages_ratelimited_nr(mapping, 1);
-}
+void balance_dirty_pages_ratelimited(struct address_space *mapping);
typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc,
void *data);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 5ad5ce2..49133b6 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1069,7 +1069,7 @@ static void bdi_update_bandwidth(struct backing_dev_info *bdi,
}
/*
- * After a task dirtied this many pages, balance_dirty_pages_ratelimited_nr()
+ * After a task dirtied this many pages, balance_dirty_pages_ratelimited()
* will look to see if it needs to start dirty throttling.
*
* If dirty_poll_interval is too low, big NUMA machines will call the expensive
@@ -1436,9 +1436,8 @@ static DEFINE_PER_CPU(int, bdp_ratelimits);
DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
/**
- * balance_dirty_pages_ratelimited_nr - balance dirty memory state
+ * balance_dirty_pages_ratelimited - balance dirty memory state
* @mapping: address_space which was dirtied
- * @nr_pages_dirtied: number of pages which the caller has just dirtied
*
* Processes which are dirtying memory should call in here once for each page
* which was newly dirtied. The function will periodically check the system's
@@ -1449,8 +1448,7 @@ DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
* limit we decrease the ratelimiting by a lot, to prevent individual processes
* from overshooting the limit by (ratelimit_pages) each.
*/
-void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
- unsigned long nr_pages_dirtied)
+void balance_dirty_pages_ratelimited(struct address_space *mapping)
{
struct backing_dev_info *bdi = mapping->backing_dev_info;
int ratelimit;
@@ -1484,6 +1482,7 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
*/
p = &__get_cpu_var(dirty_throttle_leaks);
if (*p > 0 && current->nr_dirtied < ratelimit) {
+ unsigned long nr_pages_dirtied;
nr_pages_dirtied = min(*p, ratelimit - current->nr_dirtied);
*p -= nr_pages_dirtied;
current->nr_dirtied += nr_pages_dirtied;
@@ -1493,7 +1492,7 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
if (unlikely(current->nr_dirtied >= ratelimit))
balance_dirty_pages(mapping, current->nr_dirtied);
}
-EXPORT_SYMBOL(balance_dirty_pages_ratelimited_nr);
+EXPORT_SYMBOL(balance_dirty_pages_ratelimited);
void throttle_vm_writeout(gfp_t gfp_mask)
{
--
1.7.9.5
On Sat, Aug 18, 2012 at 05:48:29AM -0400, Namjae Jeon wrote:
> There is no reason nr_pages_dirtied is argument anymore.
> because nr_pages_dirtied value from caller is not used in
> balance_dirty_pages_ratelimited_nr function.
Looks good to me. If the fs developers don't have problems with this,
I'll apply it to the writeback tree.
Thanks,
Fengguang
> Signed-off-by: Namjae Jeon <[email protected]>
> Signed-off-by: Vivek Trivedi <[email protected]>
> ---
> fs/btrfs/disk-io.c | 8 ++++----
> fs/btrfs/file.c | 3 +--
> fs/btrfs/ioctl.c | 2 +-
> fs/ocfs2/file.c | 5 +----
> fs/splice.c | 5 +----
> include/linux/writeback.h | 9 +--------
> mm/page-writeback.c | 11 +++++------
> 7 files changed, 14 insertions(+), 29 deletions(-)
>
> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
> index 62e0caf..10b6128 100644
> --- a/fs/btrfs/disk-io.c
> +++ b/fs/btrfs/disk-io.c
> @@ -3344,8 +3344,8 @@ void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
> num_dirty = root->fs_info->dirty_metadata_bytes;
>
> if (num_dirty > thresh) {
> - balance_dirty_pages_ratelimited_nr(
> - root->fs_info->btree_inode->i_mapping, 1);
> + balance_dirty_pages_ratelimited(
> + root->fs_info->btree_inode->i_mapping);
> }
> return;
> }
> @@ -3365,8 +3365,8 @@ void __btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr)
> num_dirty = root->fs_info->dirty_metadata_bytes;
>
> if (num_dirty > thresh) {
> - balance_dirty_pages_ratelimited_nr(
> - root->fs_info->btree_inode->i_mapping, 1);
> + balance_dirty_pages_ratelimited(
> + root->fs_info->btree_inode->i_mapping);
> }
> return;
> }
> diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
> index f6b40e8..0dae684 100644
> --- a/fs/btrfs/file.c
> +++ b/fs/btrfs/file.c
> @@ -1314,8 +1314,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
>
> cond_resched();
>
> - balance_dirty_pages_ratelimited_nr(inode->i_mapping,
> - dirty_pages);
> + balance_dirty_pages_ratelimited(inode->i_mapping);
> if (dirty_pages < (root->leafsize >> PAGE_CACHE_SHIFT) + 1)
> btrfs_btree_balance_dirty(root, 1);
>
> diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
> index 7bb7556..df2e9fb 100644
> --- a/fs/btrfs/ioctl.c
> +++ b/fs/btrfs/ioctl.c
> @@ -1199,7 +1199,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
> }
>
> defrag_count += ret;
> - balance_dirty_pages_ratelimited_nr(inode->i_mapping, ret);
> + balance_dirty_pages_ratelimited(inode->i_mapping);
> mutex_unlock(&inode->i_mutex);
>
> if (newer_than) {
> diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
> index 46a1f6d..a83c964 100644
> --- a/fs/ocfs2/file.c
> +++ b/fs/ocfs2/file.c
> @@ -2515,18 +2515,15 @@ static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
> ret = sd.num_spliced;
>
> if (ret > 0) {
> - unsigned long nr_pages;
> int err;
>
> - nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
> -
> err = generic_write_sync(out, *ppos, ret);
> if (err)
> ret = err;
> else
> *ppos += ret;
>
> - balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
> + balance_dirty_pages_ratelimited(mapping);
> }
>
> return ret;
> diff --git a/fs/splice.c b/fs/splice.c
> index 41514dd..36b6c17 100644
> --- a/fs/splice.c
> +++ b/fs/splice.c
> @@ -1024,17 +1024,14 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
> ret = sd.num_spliced;
>
> if (ret > 0) {
> - unsigned long nr_pages;
> int err;
>
> - nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
> -
> err = generic_write_sync(out, *ppos, ret);
> if (err)
> ret = err;
> else
> *ppos += ret;
> - balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
> + balance_dirty_pages_ratelimited(mapping);
> }
> sb_end_write(inode->i_sb);
>
> diff --git a/include/linux/writeback.h b/include/linux/writeback.h
> index 50c3e8f..b82a83a 100644
> --- a/include/linux/writeback.h
> +++ b/include/linux/writeback.h
> @@ -161,14 +161,7 @@ void __bdi_update_bandwidth(struct backing_dev_info *bdi,
> unsigned long start_time);
>
> void page_writeback_init(void);
> -void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
> - unsigned long nr_pages_dirtied);
> -
> -static inline void
> -balance_dirty_pages_ratelimited(struct address_space *mapping)
> -{
> - balance_dirty_pages_ratelimited_nr(mapping, 1);
> -}
> +void balance_dirty_pages_ratelimited(struct address_space *mapping);
>
> typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc,
> void *data);
> diff --git a/mm/page-writeback.c b/mm/page-writeback.c
> index 5ad5ce2..49133b6 100644
> --- a/mm/page-writeback.c
> +++ b/mm/page-writeback.c
> @@ -1069,7 +1069,7 @@ static void bdi_update_bandwidth(struct backing_dev_info *bdi,
> }
>
> /*
> - * After a task dirtied this many pages, balance_dirty_pages_ratelimited_nr()
> + * After a task dirtied this many pages, balance_dirty_pages_ratelimited()
> * will look to see if it needs to start dirty throttling.
> *
> * If dirty_poll_interval is too low, big NUMA machines will call the expensive
> @@ -1436,9 +1436,8 @@ static DEFINE_PER_CPU(int, bdp_ratelimits);
> DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
>
> /**
> - * balance_dirty_pages_ratelimited_nr - balance dirty memory state
> + * balance_dirty_pages_ratelimited - balance dirty memory state
> * @mapping: address_space which was dirtied
> - * @nr_pages_dirtied: number of pages which the caller has just dirtied
> *
> * Processes which are dirtying memory should call in here once for each page
> * which was newly dirtied. The function will periodically check the system's
> @@ -1449,8 +1448,7 @@ DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
> * limit we decrease the ratelimiting by a lot, to prevent individual processes
> * from overshooting the limit by (ratelimit_pages) each.
> */
> -void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
> - unsigned long nr_pages_dirtied)
> +void balance_dirty_pages_ratelimited(struct address_space *mapping)
> {
> struct backing_dev_info *bdi = mapping->backing_dev_info;
> int ratelimit;
> @@ -1484,6 +1482,7 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
> */
> p = &__get_cpu_var(dirty_throttle_leaks);
> if (*p > 0 && current->nr_dirtied < ratelimit) {
> + unsigned long nr_pages_dirtied;
> nr_pages_dirtied = min(*p, ratelimit - current->nr_dirtied);
> *p -= nr_pages_dirtied;
> current->nr_dirtied += nr_pages_dirtied;
> @@ -1493,7 +1492,7 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
> if (unlikely(current->nr_dirtied >= ratelimit))
> balance_dirty_pages(mapping, current->nr_dirtied);
> }
> -EXPORT_SYMBOL(balance_dirty_pages_ratelimited_nr);
> +EXPORT_SYMBOL(balance_dirty_pages_ratelimited);
>
> void throttle_vm_writeout(gfp_t gfp_mask)
> {
> --
> 1.7.9.5
2012/8/19, Fengguang Wu <[email protected]>:
> On Sat, Aug 18, 2012 at 05:48:29AM -0400, Namjae Jeon wrote:
>> There is no reason nr_pages_dirtied is argument anymore.
>> because nr_pages_dirtied value from caller is not used in
>> balance_dirty_pages_ratelimited_nr function.
>
> Looks good to me. If the fs developers don't have problems with this,
> I'll apply it to the writeback tree.
Thanks Wu!
Hi Chris, Mark, Joel.
Would you check this patch ?
Thanks.
>
> Thanks,
> Fengguang
>
>> Signed-off-by: Namjae Jeon <[email protected]>
>> Signed-off-by: Vivek Trivedi <[email protected]>
>> ---
>> fs/btrfs/disk-io.c | 8 ++++----
>> fs/btrfs/file.c | 3 +--
>> fs/btrfs/ioctl.c | 2 +-
>> fs/ocfs2/file.c | 5 +----
>> fs/splice.c | 5 +----
>> include/linux/writeback.h | 9 +--------
>> mm/page-writeback.c | 11 +++++------
>> 7 files changed, 14 insertions(+), 29 deletions(-)
>>
>> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
>> index 62e0caf..10b6128 100644
>> --- a/fs/btrfs/disk-io.c
>> +++ b/fs/btrfs/disk-io.c
>> @@ -3344,8 +3344,8 @@ void btrfs_btree_balance_dirty(struct btrfs_root
>> *root, unsigned long nr)
>> num_dirty = root->fs_info->dirty_metadata_bytes;
>>
>> if (num_dirty > thresh) {
>> - balance_dirty_pages_ratelimited_nr(
>> - root->fs_info->btree_inode->i_mapping, 1);
>> + balance_dirty_pages_ratelimited(
>> + root->fs_info->btree_inode->i_mapping);
>> }
>> return;
>> }
>> @@ -3365,8 +3365,8 @@ void __btrfs_btree_balance_dirty(struct btrfs_root
>> *root, unsigned long nr)
>> num_dirty = root->fs_info->dirty_metadata_bytes;
>>
>> if (num_dirty > thresh) {
>> - balance_dirty_pages_ratelimited_nr(
>> - root->fs_info->btree_inode->i_mapping, 1);
>> + balance_dirty_pages_ratelimited(
>> + root->fs_info->btree_inode->i_mapping);
>> }
>> return;
>> }
>> diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
>> index f6b40e8..0dae684 100644
>> --- a/fs/btrfs/file.c
>> +++ b/fs/btrfs/file.c
>> @@ -1314,8 +1314,7 @@ static noinline ssize_t
>> __btrfs_buffered_write(struct file *file,
>>
>> cond_resched();
>>
>> - balance_dirty_pages_ratelimited_nr(inode->i_mapping,
>> - dirty_pages);
>> + balance_dirty_pages_ratelimited(inode->i_mapping);
>> if (dirty_pages < (root->leafsize >> PAGE_CACHE_SHIFT) + 1)
>> btrfs_btree_balance_dirty(root, 1);
>>
>> diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
>> index 7bb7556..df2e9fb 100644
>> --- a/fs/btrfs/ioctl.c
>> +++ b/fs/btrfs/ioctl.c
>> @@ -1199,7 +1199,7 @@ int btrfs_defrag_file(struct inode *inode, struct
>> file *file,
>> }
>>
>> defrag_count += ret;
>> - balance_dirty_pages_ratelimited_nr(inode->i_mapping, ret);
>> + balance_dirty_pages_ratelimited(inode->i_mapping);
>> mutex_unlock(&inode->i_mutex);
>>
>> if (newer_than) {
>> diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
>> index 46a1f6d..a83c964 100644
>> --- a/fs/ocfs2/file.c
>> +++ b/fs/ocfs2/file.c
>> @@ -2515,18 +2515,15 @@ static ssize_t ocfs2_file_splice_write(struct
>> pipe_inode_info *pipe,
>> ret = sd.num_spliced;
>>
>> if (ret > 0) {
>> - unsigned long nr_pages;
>> int err;
>>
>> - nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
>> -
>> err = generic_write_sync(out, *ppos, ret);
>> if (err)
>> ret = err;
>> else
>> *ppos += ret;
>>
>> - balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
>> + balance_dirty_pages_ratelimited(mapping);
>> }
>>
>> return ret;
>> diff --git a/fs/splice.c b/fs/splice.c
>> index 41514dd..36b6c17 100644
>> --- a/fs/splice.c
>> +++ b/fs/splice.c
>> @@ -1024,17 +1024,14 @@ generic_file_splice_write(struct pipe_inode_info
>> *pipe, struct file *out,
>> ret = sd.num_spliced;
>>
>> if (ret > 0) {
>> - unsigned long nr_pages;
>> int err;
>>
>> - nr_pages = (ret + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
>> -
>> err = generic_write_sync(out, *ppos, ret);
>> if (err)
>> ret = err;
>> else
>> *ppos += ret;
>> - balance_dirty_pages_ratelimited_nr(mapping, nr_pages);
>> + balance_dirty_pages_ratelimited(mapping);
>> }
>> sb_end_write(inode->i_sb);
>>
>> diff --git a/include/linux/writeback.h b/include/linux/writeback.h
>> index 50c3e8f..b82a83a 100644
>> --- a/include/linux/writeback.h
>> +++ b/include/linux/writeback.h
>> @@ -161,14 +161,7 @@ void __bdi_update_bandwidth(struct backing_dev_info
>> *bdi,
>> unsigned long start_time);
>>
>> void page_writeback_init(void);
>> -void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
>> - unsigned long nr_pages_dirtied);
>> -
>> -static inline void
>> -balance_dirty_pages_ratelimited(struct address_space *mapping)
>> -{
>> - balance_dirty_pages_ratelimited_nr(mapping, 1);
>> -}
>> +void balance_dirty_pages_ratelimited(struct address_space *mapping);
>>
>> typedef int (*writepage_t)(struct page *page, struct writeback_control
>> *wbc,
>> void *data);
>> diff --git a/mm/page-writeback.c b/mm/page-writeback.c
>> index 5ad5ce2..49133b6 100644
>> --- a/mm/page-writeback.c
>> +++ b/mm/page-writeback.c
>> @@ -1069,7 +1069,7 @@ static void bdi_update_bandwidth(struct
>> backing_dev_info *bdi,
>> }
>>
>> /*
>> - * After a task dirtied this many pages,
>> balance_dirty_pages_ratelimited_nr()
>> + * After a task dirtied this many pages,
>> balance_dirty_pages_ratelimited()
>> * will look to see if it needs to start dirty throttling.
>> *
>> * If dirty_poll_interval is too low, big NUMA machines will call the
>> expensive
>> @@ -1436,9 +1436,8 @@ static DEFINE_PER_CPU(int, bdp_ratelimits);
>> DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
>>
>> /**
>> - * balance_dirty_pages_ratelimited_nr - balance dirty memory state
>> + * balance_dirty_pages_ratelimited - balance dirty memory state
>> * @mapping: address_space which was dirtied
>> - * @nr_pages_dirtied: number of pages which the caller has just dirtied
>> *
>> * Processes which are dirtying memory should call in here once for each
>> page
>> * which was newly dirtied. The function will periodically check the
>> system's
>> @@ -1449,8 +1448,7 @@ DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
>> * limit we decrease the ratelimiting by a lot, to prevent individual
>> processes
>> * from overshooting the limit by (ratelimit_pages) each.
>> */
>> -void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
>> - unsigned long nr_pages_dirtied)
>> +void balance_dirty_pages_ratelimited(struct address_space *mapping)
>> {
>> struct backing_dev_info *bdi = mapping->backing_dev_info;
>> int ratelimit;
>> @@ -1484,6 +1482,7 @@ void balance_dirty_pages_ratelimited_nr(struct
>> address_space *mapping,
>> */
>> p = &__get_cpu_var(dirty_throttle_leaks);
>> if (*p > 0 && current->nr_dirtied < ratelimit) {
>> + unsigned long nr_pages_dirtied;
>> nr_pages_dirtied = min(*p, ratelimit - current->nr_dirtied);
>> *p -= nr_pages_dirtied;
>> current->nr_dirtied += nr_pages_dirtied;
>> @@ -1493,7 +1492,7 @@ void balance_dirty_pages_ratelimited_nr(struct
>> address_space *mapping,
>> if (unlikely(current->nr_dirtied >= ratelimit))
>> balance_dirty_pages(mapping, current->nr_dirtied);
>> }
>> -EXPORT_SYMBOL(balance_dirty_pages_ratelimited_nr);
>> +EXPORT_SYMBOL(balance_dirty_pages_ratelimited);
>>
>> void throttle_vm_writeout(gfp_t gfp_mask)
>> {
>> --
>> 1.7.9.5
>
On Thu, Aug 23, 2012 at 05:06:19PM +0900, Namjae Jeon wrote:
> 2012/8/19, Fengguang Wu <[email protected]>:
> > On Sat, Aug 18, 2012 at 05:48:29AM -0400, Namjae Jeon wrote:
> >> There is no reason nr_pages_dirtied is argument anymore.
> >> because nr_pages_dirtied value from caller is not used in
> >> balance_dirty_pages_ratelimited_nr function.
> >
> > Looks good to me. If the fs developers don't have problems with this,
> > I'll apply it to the writeback tree.
> Thanks Wu!
>
> Hi Chris, Mark, Joel.
>
> Would you check this patch ?
Patch is ok from the btrfs side.
david