diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-16 23:25:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 08:42:45 -0700 |
| commit | c9e51e4180696aa67915ec5665e4ec74125565de (patch) | |
| tree | d66e1427b16e56bc7da0dfb583a6d8edb55a2c3e | |
| parent | b2e8fb6efa209c82203c79b491b5bc952d44aa57 (diff) | |
| download | op-kernel-dev-c9e51e4180696aa67915ec5665e4ec74125565de.zip op-kernel-dev-c9e51e4180696aa67915ec5665e4ec74125565de.tar.gz | |
mm: count reclaimable pages per BDI
Count per BDI reclaimable pages; nr_reclaimable = nr_dirty + nr_unstable.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/buffer.c | 2 | ||||
| -rw-r--r-- | fs/nfs/write.c | 7 | ||||
| -rw-r--r-- | include/linux/backing-dev.h | 1 | ||||
| -rw-r--r-- | mm/page-writeback.c | 4 | ||||
| -rw-r--r-- | mm/truncate.c | 2 |
5 files changed, 16 insertions, 0 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index faceb5e..86e58b1 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -710,6 +710,8 @@ static int __set_page_dirty(struct page *page, if (mapping_cap_account_dirty(mapping)) { __inc_zone_page_state(page, NR_FILE_DIRTY); + __inc_bdi_stat(mapping->backing_dev_info, + BDI_RECLAIMABLE); task_io_account_write(PAGE_CACHE_SIZE); } radix_tree_tag_set(&mapping->page_tree, diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 82d7ee9..0cf9d1c 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -447,6 +447,7 @@ nfs_mark_request_commit(struct nfs_page *req) NFS_PAGE_TAG_COMMIT); spin_unlock(&inode->i_lock); inc_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); + inc_bdi_stat(req->wb_page->mapping->backing_dev_info, BDI_RECLAIMABLE); __mark_inode_dirty(inode, I_DIRTY_DATASYNC); } @@ -533,6 +534,8 @@ static void nfs_cancel_commit_list(struct list_head *head) 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_RECLAIMABLE); nfs_list_remove_request(req); clear_bit(PG_NEED_COMMIT, &(req)->wb_flags); nfs_inode_remove_request(req); @@ -1193,6 +1196,8 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how) 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_RECLAIMABLE); nfs_clear_page_tag_locked(req); } return -ENOMEM; @@ -1218,6 +1223,8 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata) nfs_list_remove_request(req); clear_bit(PG_NEED_COMMIT, &(req)->wb_flags); dec_zone_page_state(req->wb_page, NR_UNSTABLE_NFS); + dec_bdi_stat(req->wb_page->mapping->backing_dev_info, + BDI_RECLAIMABLE); dprintk("NFS: commit (%s/%Ld %d@%Ld)", req->wb_context->path.dentry->d_inode->i_sb->s_id, diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index f7677ff..bfae09d 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -27,6 +27,7 @@ enum bdi_state { typedef int (congested_fn)(void *, int); enum bdi_stat_item { + BDI_RECLAIMABLE, NR_BDI_STAT_ITEMS }; diff --git a/mm/page-writeback.c b/mm/page-writeback.c index d821321..9b3c4ee 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -827,6 +827,8 @@ int __set_page_dirty_nobuffers(struct page *page) WARN_ON_ONCE(!PagePrivate(page) && !PageUptodate(page)); if (mapping_cap_account_dirty(mapping)) { __inc_zone_page_state(page, NR_FILE_DIRTY); + __inc_bdi_stat(mapping->backing_dev_info, + BDI_RECLAIMABLE); task_io_account_write(PAGE_CACHE_SIZE); } radix_tree_tag_set(&mapping->page_tree, @@ -961,6 +963,8 @@ int clear_page_dirty_for_io(struct page *page) */ if (TestClearPageDirty(page)) { dec_zone_page_state(page, NR_FILE_DIRTY); + dec_bdi_stat(mapping->backing_dev_info, + BDI_RECLAIMABLE); return 1; } return 0; diff --git a/mm/truncate.c b/mm/truncate.c index 5cdfbc1..ff78505 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -72,6 +72,8 @@ void cancel_dirty_page(struct page *page, unsigned int account_size) struct address_space *mapping = page->mapping; if (mapping && mapping_cap_account_dirty(mapping)) { dec_zone_page_state(page, NR_FILE_DIRTY); + dec_bdi_stat(mapping->backing_dev_info, + BDI_RECLAIMABLE); if (account_size) task_io_account_cancelled_write(account_size); } |
