From 65e5a0e18e5fb5bc6cfabd8ef4b9fc1c8569ba62 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Thu, 7 Oct 2010 19:14:02 +0100 Subject: jffs2: Dynamically choose inocache hash size When JFFS2 is used for large volumes, the mount times are quite long. Increasing the hash size provides a significant speed boost on the OLPC XO-1 laptop. Add logic that dynamically selects a hash size based on the size of the medium. A 64mb medium will result in a hash size of 128, and a 512mb medium will result in a hash size of 1024. Signed-off-by: Daniel Drake Signed-off-by: David Woodhouse --- fs/jffs2/jffs2_fs_sb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/jffs2/jffs2_fs_sb.h') diff --git a/fs/jffs2/jffs2_fs_sb.h b/fs/jffs2/jffs2_fs_sb.h index 6784bc89add1..f864005de64c 100644 --- a/fs/jffs2/jffs2_fs_sb.h +++ b/fs/jffs2/jffs2_fs_sb.h @@ -100,6 +100,7 @@ struct jffs2_sb_info { wait_queue_head_t erase_wait; /* For waiting for erases to complete */ wait_queue_head_t inocache_wq; + int inocache_hashsize; struct jffs2_inode_cache **inocache_list; spinlock_t inocache_lock; -- cgit v1.2.3