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authorDavid Woodhouse <dwmw2@infradead.org>2005-07-05 22:03:10 +0100
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-07-06 14:07:54 +0200
commit9dee7503ce3fc38911b9873216619190cf688128 (patch)
tree4a980e7afd14722a81472600ed13e147ff69f923 /fs/jffs2/nodelist.h
parent10c96f2ec37f5369a785cf8c5a065a15e323c743 (diff)
downloadop-kernel-dev-9dee7503ce3fc38911b9873216619190cf688128.zip
op-kernel-dev-9dee7503ce3fc38911b9873216619190cf688128.tar.gz
[JFFS2] Optimise jffs2_add_tn_to_list
Use an rbtree instead of a simple linked list. We were wasting an amazing amount of time in jffs2_add_tn_to_list(). Thanks to Artem Bityuckiy and Jarkko Jlavinen for noticing. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/jffs2/nodelist.h')
-rw-r--r--fs/jffs2/nodelist.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index a65539f..b34c3979 100644
--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: nodelist.h,v 1.130 2005/04/09 10:46:59 dedekind Exp $
+ * $Id: nodelist.h,v 1.131 2005/07/05 21:03:07 dwmw2 Exp $
*
*/
@@ -161,7 +161,7 @@ struct jffs2_full_dnode
*/
struct jffs2_tmp_dnode_info
{
- struct jffs2_tmp_dnode_info *next;
+ struct rb_node rb;
struct jffs2_full_dnode *fn;
uint32_t version;
};
@@ -387,7 +387,7 @@ static inline struct jffs2_node_frag *frag_last(struct rb_root *root)
D2(void jffs2_print_frag_list(struct jffs2_inode_info *f));
void jffs2_add_fd_to_list(struct jffs2_sb_info *c, struct jffs2_full_dirent *new, struct jffs2_full_dirent **list);
int jffs2_get_inode_nodes(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
- struct jffs2_tmp_dnode_info **tnp, struct jffs2_full_dirent **fdp,
+ struct rb_root *tnp, struct jffs2_full_dirent **fdp,
uint32_t *highest_version, uint32_t *latest_mctime,
uint32_t *mctime_ver);
void jffs2_set_inocache_state(struct jffs2_sb_info *c, struct jffs2_inode_cache *ic, int state);
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