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[JFFS2] Add symlink caching support.

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Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Artem B. Bityuckiy
2005-03-01 10:50:52 +00:00
committed by Thomas Gleixner
parent 20a6c21190
commit 32f1a95d50
5 changed files with 117 additions and 70 deletions
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fs/jffs2/read.c
+1 -31
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@@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
* $Id: read.c,v 1.38 2004/11/16 20:36:12 dwmw2 Exp $
* $Id: read.c,v 1.39 2005/03/01 10:34:03 dedekind Exp $
*
*/
@@ -214,33 +214,3 @@ int jffs2_read_inode_range(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
return 0;
}
/* Core function to read symlink target. */
char *jffs2_getlink(struct jffs2_sb_info *c, struct jffs2_inode_info *f)
{
char *buf;
int ret;
down(&f->sem);
if (!f->metadata) {
printk(KERN_NOTICE "No metadata for symlink inode #%u\n", f->inocache->ino);
up(&f->sem);
return ERR_PTR(-EINVAL);
}
buf = kmalloc(f->metadata->size+1, GFP_USER);
if (!buf) {
up(&f->sem);
return ERR_PTR(-ENOMEM);
}
buf[f->metadata->size]=0;
ret = jffs2_read_dnode(c, f, f->metadata, buf, 0, f->metadata->size);
up(&f->sem);
if (ret) {
kfree(buf);
return ERR_PTR(ret);
}
return buf;
}