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-rw-r--r--fs/jffs2/dir.c46
1 files changed, 25 insertions, 21 deletions
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index 757306fa3ff4..3ca0d25eef1d 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -7,7 +7,7 @@
*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: dir.c,v 1.84 2004/11/16 20:36:11 dwmw2 Exp $
+ * $Id: dir.c,v 1.86 2005/07/06 12:13:09 dwmw2 Exp $
*
*/
@@ -22,16 +22,6 @@
#include <linux/time.h>
#include "nodelist.h"
-/* Urgh. Please tell me there's a nicer way of doing these. */
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,48)
-typedef int mknod_arg_t;
-#define NAMEI_COMPAT(x) ((void *)x)
-#else
-typedef dev_t mknod_arg_t;
-#define NAMEI_COMPAT(x) (x)
-#endif
-
static int jffs2_readdir (struct file *, void *, filldir_t);
static int jffs2_create (struct inode *,struct dentry *,int,
@@ -43,7 +33,7 @@ static int jffs2_unlink (struct inode *,struct dentry *);
static int jffs2_symlink (struct inode *,struct dentry *,const char *);
static int jffs2_mkdir (struct inode *,struct dentry *,int);
static int jffs2_rmdir (struct inode *,struct dentry *);
-static int jffs2_mknod (struct inode *,struct dentry *,int,mknod_arg_t);
+static int jffs2_mknod (struct inode *,struct dentry *,int,dev_t);
static int jffs2_rename (struct inode *, struct dentry *,
struct inode *, struct dentry *);
@@ -58,8 +48,8 @@ struct file_operations jffs2_dir_operations =
struct inode_operations jffs2_dir_inode_operations =
{
- .create = NAMEI_COMPAT(jffs2_create),
- .lookup = NAMEI_COMPAT(jffs2_lookup),
+ .create = jffs2_create,
+ .lookup = jffs2_lookup,
.link = jffs2_link,
.unlink = jffs2_unlink,
.symlink = jffs2_symlink,
@@ -296,11 +286,11 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
struct jffs2_full_dirent *fd;
int namelen;
uint32_t alloclen, phys_ofs;
- int ret;
+ int ret, targetlen = strlen(target);
/* FIXME: If you care. We'd need to use frags for the target
if it grows much more than this */
- if (strlen(target) > 254)
+ if (targetlen > 254)
return -EINVAL;
ri = jffs2_alloc_raw_inode();
@@ -314,7 +304,7 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
* Just the node will do for now, though
*/
namelen = dentry->d_name.len;
- ret = jffs2_reserve_space(c, sizeof(*ri) + strlen(target), &phys_ofs, &alloclen, ALLOC_NORMAL);
+ ret = jffs2_reserve_space(c, sizeof(*ri) + targetlen, &phys_ofs, &alloclen, ALLOC_NORMAL);
if (ret) {
jffs2_free_raw_inode(ri);
@@ -333,16 +323,16 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
f = JFFS2_INODE_INFO(inode);
- inode->i_size = strlen(target);
+ inode->i_size = targetlen;
ri->isize = ri->dsize = ri->csize = cpu_to_je32(inode->i_size);
ri->totlen = cpu_to_je32(sizeof(*ri) + inode->i_size);
ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
ri->compr = JFFS2_COMPR_NONE;
- ri->data_crc = cpu_to_je32(crc32(0, target, strlen(target)));
+ ri->data_crc = cpu_to_je32(crc32(0, target, targetlen));
ri->node_crc = cpu_to_je32(crc32(0, ri, sizeof(*ri)-8));
- fn = jffs2_write_dnode(c, f, ri, target, strlen(target), phys_ofs, ALLOC_NORMAL);
+ fn = jffs2_write_dnode(c, f, ri, target, targetlen, phys_ofs, ALLOC_NORMAL);
jffs2_free_raw_inode(ri);
@@ -353,6 +343,20 @@ static int jffs2_symlink (struct inode *dir_i, struct dentry *dentry, const char
jffs2_clear_inode(inode);
return PTR_ERR(fn);
}
+
+ /* We use f->dents field to store the target path. */
+ f->dents = kmalloc(targetlen + 1, GFP_KERNEL);
+ if (!f->dents) {
+ printk(KERN_WARNING "Can't allocate %d bytes of memory\n", targetlen + 1);
+ up(&f->sem);
+ jffs2_complete_reservation(c);
+ jffs2_clear_inode(inode);
+ return -ENOMEM;
+ }
+
+ memcpy(f->dents, target, targetlen + 1);
+ D1(printk(KERN_DEBUG "jffs2_symlink: symlink's target '%s' cached\n", (char *)f->dents));
+
/* No data here. Only a metadata node, which will be
obsoleted by the first data write
*/
@@ -564,7 +568,7 @@ static int jffs2_rmdir (struct inode *dir_i, struct dentry *dentry)
return ret;
}
-static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, mknod_arg_t rdev)
+static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, int mode, dev_t rdev)
{
struct jffs2_inode_info *f, *dir_f;
struct jffs2_sb_info *c;