[PATCH 2/2] f2fs: show the number of writeback pages in stat

Jaegeuk Kim
2015-02-02T22:51:31Z

This patch adds the # of writeback pages in stat info.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/debug.c | 5 +++--
fs/f2fs/f2fs.h | 2 +-
2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 0f721f6..ac2bd8e 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -40,6 +40,7 @@ static void update_general_status(struct f2fs_sb_info *sbi)
si->ndirty_dirs = sbi->n_dirty_dirs;
si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES);
+ si->wb_pages = get_pages(sbi, F2FS_WRITEBACK);
si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg;
si->rsvd_segs = reserved_segments(sbi);
si->overp_segs = overprovision_segments(sbi);
@@ -266,8 +267,8 @@ static int stat_show(struct seq_file *s, void *v)
seq_printf(s, "\nExtent Hit Ratio: %d / %d\n",
si->hit_ext, si->total_ext);
seq_puts(s, "\nBalancing F2FS Async:\n");
- seq_printf(s, " - inmem: %4d\n",
- si->inmem_pages);
+ seq_printf(s, " - inmem: %4d, wb: %4d\n",
+ si->inmem_pages, si->wb_pages);
seq_printf(s, " - nodes: %4d in %4d\n",
si->ndirty_node, si->node_pages);
seq_printf(s, " - dents: %4d in dirs:%4d\n",
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d89dc5d0..d005939c3 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1550,7 +1550,7 @@ struct f2fs_stat_info {
int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta;
int nats, dirty_nats, sits, dirty_sits, fnids;
int total_count, utilization;
- int bg_gc, inline_inode, inline_dir, inmem_pages;
+ int bg_gc, inline_inode, inline_dir, inmem_pages, wb_pages;
unsigned int valid_count, valid_node_count, valid_inode_count;
unsigned int bimodal, avg_vblocks;
int util_free, util_valid, util_invalid;
--
2.1.1