[JFFS2] Remove support for virtual blocks

Remove support for virtual blocks, which are build by
concatenation of multiple physical erase blocks.

For more information please read the MTD mailing list thread
"[PATCH] remove support for virtual blocks"

Signed-off-by: Ferenc Havasi <havasi@inf.u-szeged.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index 8e2f1f4e8aa32d94192b6aa03e3e7cddf3c914c3..1522eace932e3d0fd29b18642cf348b9dd1b0013 100644 (file)
--- a/fs/jffs2/build.c
+++ b/fs/jffs2/build.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: build.c,v 1.76 2005/07/30 15:29:27 lunn Exp $
+ * $Id: build.c,v 1.77 2005/08/31 13:51:00 havasi Exp $
  *
  */
 
@@ -318,7 +318,7 @@ int jffs2_do_mount_fs(struct jffs2_sb_info *c)
        c->free_size = c->flash_size;
        c->nr_blocks = c->flash_size / c->sector_size;
 #ifndef __ECOS
-       if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
+       if (jffs2_blocks_use_vmalloc(c))
                c->blocks = vmalloc(sizeof(struct jffs2_eraseblock) * c->nr_blocks);
        else
 #endif
@@ -356,7 +356,7 @@ int jffs2_do_mount_fs(struct jffs2_sb_info *c)
                jffs2_free_ino_caches(c);
                jffs2_free_raw_node_refs(c);
 #ifndef __ECOS
-               if (c->mtd->flags & MTD_NO_VIRTBLOCKS) 
+               if (jffs2_blocks_use_vmalloc(c))
                     vfree(c->blocks);
                else 
 #endif

diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 79b4bdc76f7acbbebcd11c472e44f98df1a3b698..c99451ae4b77845aad24f6d3d9c8f9bdb4a3f303 100644 (file)
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: fs.c,v 1.62 2005/08/06 04:51:30 nico Exp $
+ * $Id: fs.c,v 1.64 2005/09/01 08:42:31 havasi Exp $
  *
  */
 
@@ -457,19 +457,8 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
 #endif
 
        c->flash_size = c->mtd->size;
-
-       /* 
-        * Check, if we have to concatenate physical blocks to larger virtual blocks
-        * to reduce the memorysize for c->blocks. (kmalloc allows max. 128K allocation)
-        */
        c->sector_size = c->mtd->erasesize; 
        blocks = c->flash_size / c->sector_size;
-       if (!(c->mtd->flags & MTD_NO_VIRTBLOCKS)) {
-               while ((blocks * sizeof (struct jffs2_eraseblock)) > (128 * 1024)) {
-                       blocks >>= 1;
-                       c->sector_size <<= 1;
-               }       
-       }
 
        /*
         * Size alignment check
@@ -480,10 +469,6 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
                        c->flash_size / 1024);
        }
 
-       if (c->sector_size != c->mtd->erasesize)
-               printk(KERN_INFO "jffs2: Erase block size too small (%dKiB). Using virtual blocks size (%dKiB) instead\n", 
-                       c->mtd->erasesize / 1024, c->sector_size / 1024);
-
        if (c->flash_size < 5*c->sector_size) {
                printk(KERN_ERR "jffs2: Too few erase blocks (%d)\n", c->flash_size / c->sector_size);
                return -EINVAL;
@@ -533,7 +518,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
        iput(root_i);
        jffs2_free_ino_caches(c);
        jffs2_free_raw_node_refs(c);
-       if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
+       if (jffs2_blocks_use_vmalloc(c))
                vfree(c->blocks);
        else
                kfree(c->blocks);

diff --git a/fs/jffs2/nodelist.h b/fs/jffs2/nodelist.h
index ce47d5530a70ce200e40c8de8d9b251e75a63afc..1533af8b3959bb52f462acaec1ab16f74f0c228c 100644 (file)
--- 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 1.138 2005/08/17 13:46:23 dedekind Exp $
+ * $Id: nodelist.h,v 1.139 2005/08/31 13:51:00 havasi Exp $
  *
  */
 
@@ -197,6 +197,11 @@ struct jffs2_eraseblock
        struct jffs2_raw_node_ref *gc_node;     /* Next node to be garbage collected */
 };
 
+static inline int jffs2_blocks_use_vmalloc(struct jffs2_sb_info *c)
+{
+       return ((c->flash_size / c->sector_size) * sizeof (struct jffs2_eraseblock)) > (128 * 1024);
+}
+
 /* Calculate totlen from surrounding nodes or eraseblock */
 static inline uint32_t __ref_totlen(struct jffs2_sb_info *c,
                                    struct jffs2_eraseblock *jeb,

diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index aaf9475cfb6ad866e05660121fd1a516650345b0..58496a03a1d29bcbf42b2aa78248440f4d37e5dc 100644 (file)
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -7,7 +7,7 @@
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: super.c,v 1.107 2005/07/12 16:37:08 dedekind Exp $
+ * $Id: super.c,v 1.108 2005/08/31 13:51:00 havasi Exp $
  *
  */
 
@@ -284,7 +284,7 @@ static void jffs2_put_super (struct super_block *sb)
        up(&c->alloc_sem);
        jffs2_free_ino_caches(c);
        jffs2_free_raw_node_refs(c);
-       if (c->mtd->flags & MTD_NO_VIRTBLOCKS)
+       if (jffs2_blocks_use_vmalloc(c))
                vfree(c->blocks);
        else
                kfree(c->blocks);