f2fs: drop obsolete node page when it is truncated



If a node page is trucated, we'd better drop the page in the node_inode's page
cache for better memory footprint.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

parent 4ef51a8f

fs/f2fs/node.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -518,6 +518,10 @@ static void truncate_node(struct dnode_of_data *dn)
		F2FS_SET_SB_DIRT(sbi);

		f2fs_put_page(dn->node_page, 1);

		invalidate_mapping_pages(NODE_MAPPING(sbi),
		dn->node_page->index, dn->node_page->index);

		dn->node_page = NULL;
		trace_f2fs_truncate_node(dn->inode, dn->nid, ni.blk_addr);
		}