Resubmit this after the checkpatch test.
In srhink_delalloc(), writeback starts if idle, also check the bdi is
not write congested.
The patch is against the head of the btrfs-next.
Signed-off-by: Itaru Kitayama <kitayama@xxxxxxxxxxxx>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index efb044e..1aae046 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3712,8 +3712,9 @@ static void shrink_delalloc(struct btrfs_root
*root, u64 to_reclaim, u64 orig,
while (delalloc_bytes && loops < 3) {
max_reclaim = min(delalloc_bytes, to_reclaim);
nr_pages = max_reclaim >> PAGE_CACHE_SHIFT;
- writeback_inodes_sb_nr_if_idle(root->fs_info->sb, nr_pages,
- WB_REASON_FS_FREE_SPACE);
+ if (!bdi_write_congested(root->fs_info->sb->s_bdi))
+ writeback_inodes_sb_nr_if_idle(root->fs_info, nr_page,
+ WB_REASON_FS_FREE_SPACE);
/*
* We need to wait for the async pages to actually start before
On Sun, Sep 30, 2012 at 1:21 AM, David Sterba <dave@xxxxxxxx> wrote:
> On Sat, Sep 29, 2012 at 10:20:09PM +0900, Itaru Kitayama wrote:
>> --- a/fs/btrfs/extent-tree.c
>> +++ b/fs/btrfs/extent-tree.c
>> @@ -3712,7 +3712,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 t
>> while (delalloc_bytes && loops < 3) {
>> max_reclaim = min(delalloc_bytes, to_reclaim);
>> nr_pages = max_reclaim >> PAGE_CACHE_SHIFT;
>> - writeback_inodes_sb_nr_if_idle(root->fs_info->sb, nr_pages,
>> + if (!bdi_write_congested(root->fs_info->sb->s_bdi)) writeback_in
>> WB_REASON_FS_FREE_SPACE);
>
> malformed patch
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