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authorFerenc Havasi <havasi@inf.u-szeged.hu>2005-08-31 17:51:04 +0400
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-11-06 23:08:27 +0300
commit4ce1f562189696605a84813cf71847c0cc698414 (patch)
tree1ec543b00db38f5ae8db38f0f881db11ebb5d010 /fs
parentf0507530cbedf37515e0d803c332cdb81b34e71a (diff)
downloadlinux-4ce1f562189696605a84813cf71847c0cc698414.tar.xz
[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>
Diffstat (limited to 'fs')
-rw-r--r--fs/jffs2/build.c6
-rw-r--r--fs/jffs2/fs.c19
-rw-r--r--fs/jffs2/nodelist.h7
-rw-r--r--fs/jffs2/super.c4
4 files changed, 13 insertions, 23 deletions
diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c
index 8e2f1f4e8aa3..1522eace932e 100644
--- 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 79b4bdc76f7a..c99451ae4b77 100644
--- 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 ce47d5530a70..1533af8b3959 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 1.138 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 aaf9475cfb6a..58496a03a1d2 100644
--- 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);