From 4ce1f562189696605a84813cf71847c0cc698414 Mon Sep 17 00:00:00 2001 From: Ferenc Havasi Date: Wed, 31 Aug 2005 14:51:04 +0100 Subject: [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 Signed-off-by: Thomas Gleixner --- fs/jffs2/build.c | 6 +++--- fs/jffs2/fs.c | 19 ++----------------- fs/jffs2/nodelist.h | 7 ++++++- fs/jffs2/super.c | 4 ++-- 4 files changed, 13 insertions(+), 23 deletions(-) diff --git a/fs/jffs2/build.c b/fs/jffs2/build.c index 8e2f1f4e8aa32..1522eace932e3 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 79b4bdc76f7ac..c99451ae4b778 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 ce47d5530a70c..1533af8b3959b 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 aaf9475cfb6ad..58496a03a1d29 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); -- cgit 1.2.3-korg