Count per BDI unstable pages.
Signed-off-by: Peter Zijlstra <[email protected]>
---
fs/nfs/write.c | 4 ++++
include/linux/backing-dev.h | 1 +
2 files changed, 5 insertions(+)
Index: linux-2.6-mm/fs/nfs/write.c
===================================================================
--- linux-2.6-mm.orig/fs/nfs/write.c
+++ linux-2.6-mm/fs/nfs/write.c
@@ -449,6 +449,7 @@ nfs_mark_request_commit(struct nfs_page
nfsi->ncommit++;
spin_unlock(&nfsi->req_lock);
inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
}
#endif
@@ -509,6 +510,7 @@ static void nfs_cancel_commit_list(struc
while(!list_empty(head)) {
req = nfs_list_entry(head->next);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
nfs_list_remove_request(req);
nfs_inode_remove_request(req);
nfs_unlock_request(req);
@@ -1234,6 +1236,7 @@ nfs_commit_list(struct inode *inode, str
nfs_list_remove_request(req);
nfs_mark_request_commit(req);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
nfs_clear_page_writeback(req);
}
return -ENOMEM;
@@ -1258,6 +1261,7 @@ static void nfs_commit_done(struct rpc_t
req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS);
+ dec_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_UNSTABLE);
dprintk("NFS: commit (%s/%Ld %d@%Ld)",
req->wb_context->dentry->d_inode->i_sb->s_id,
Index: linux-2.6-mm/include/linux/backing-dev.h
===================================================================
--- linux-2.6-mm.orig/include/linux/backing-dev.h
+++ linux-2.6-mm/include/linux/backing-dev.h
@@ -28,6 +28,7 @@ typedef int (congested_fn)(void *, int);
enum bdi_stat_item {
BDI_DIRTY,
BDI_WRITEBACK,
+ BDI_UNSTABLE,
NR_BDI_STAT_ITEMS
};
--
-
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