f2fs: count the number of inmemory pages
This patch adds counting # of inmemory pages in the page cache.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index c787fe3..f60b817 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -462,6 +462,7 @@
F2FS_DIRTY_DENTS,
F2FS_DIRTY_NODES,
F2FS_DIRTY_META,
+ F2FS_INMEM_PAGES,
NR_COUNT_TYPE,
};
@@ -1498,7 +1499,7 @@
int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta;
int nats, sits, fnids;
int total_count, utilization;
- int bg_gc, inline_inode, inline_dir;
+ int bg_gc, inline_inode, inline_dir, inmem_pages;
unsigned int valid_count, valid_node_count, valid_inode_count;
unsigned int bimodal, avg_vblocks;
int util_free, util_valid, util_invalid;