*
* Copyright (C) 2001-2003 Red Hat, Inc.
*
- * Created by David Woodhouse <dwmw2@redhat.com>
+ * Created by David Woodhouse <dwmw2@infradead.org>
*
* For licensing information, see the file 'LICENCE' in this directory.
*
- * $Id: super.c,v 1.90 2003/10/11 11:47:23 dwmw2 Exp $
+ * $Id: super.c,v 1.110 2005/11/07 11:14:42 gleixner Exp $
*
*/
#include <linux/mtd/mtd.h>
#include <linux/ctype.h>
#include <linux/namei.h>
+#include "compr.h"
#include "nodelist.h"
static void jffs2_put_super(struct super_block *);
if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
SLAB_CTOR_CONSTRUCTOR) {
- init_MUTEX_LOCKED(&ei->sem);
+ init_MUTEX(&ei->sem);
inode_init_once(&ei->vfs_inode);
}
}
+static int jffs2_sync_fs(struct super_block *sb, int wait)
+{
+ struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+
+ down(&c->alloc_sem);
+ jffs2_flush_wbuf_pad(c);
+ up(&c->alloc_sem);
+ return 0;
+}
+
static struct super_operations jffs2_super_operations =
{
.alloc_inode = jffs2_alloc_inode,
.remount_fs = jffs2_remount_fs,
.clear_inode = jffs2_clear_inode,
.dirty_inode = jffs2_dirty_inode,
+ .sync_fs = jffs2_sync_fs,
};
static int jffs2_sb_compare(struct super_block *sb, void *data)
}
static struct super_block *jffs2_get_sb_mtd(struct file_system_type *fs_type,
- int flags, const char *dev_name,
+ int flags, const char *dev_name,
void *data, struct mtd_info *mtd)
{
struct super_block *sb;
D1(printk(KERN_DEBUG "jffs2_get_sb_mtd(): New superblock for device %d (\"%s\")\n",
mtd->index, mtd->name));
+ /* Initialize JFFS2 superblock locks, the further initialization will be
+ * done later */
+ init_MUTEX(&c->alloc_sem);
+ init_MUTEX(&c->erase_free_sem);
+ init_waitqueue_head(&c->erase_wait);
+ init_waitqueue_head(&c->inocache_wq);
+ spin_lock_init(&c->erase_completion_lock);
+ spin_lock_init(&c->inocache_lock);
+
sb->s_op = &jffs2_super_operations;
- sb->s_flags |= MS_NOATIME;
+ sb->s_flags = flags | MS_NOATIME;
- ret = jffs2_do_fill_super(sb, data, (flags&MS_VERBOSE)?1:0);
+ ret = jffs2_do_fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
if (ret) {
/* Failure case... */
}
static struct super_block *jffs2_get_sb_mtdnr(struct file_system_type *fs_type,
- int flags, const char *dev_name,
+ int flags, const char *dev_name,
void *data, int mtdnr)
{
struct mtd_info *mtd;
/* The preferred way of mounting in future; especially when
CONFIG_BLK_DEV is implemented - we specify the underlying
- MTD device by number or by name, so that we don't require
+ MTD device by number or by name, so that we don't require
block device support to be present in the kernel. */
/* FIXME: How to do the root fs this way? */
} else if (isdigit(dev_name[3])) {
/* Mount by MTD device number name */
char *endptr;
-
+
mtdnr = simple_strtoul(dev_name+3, &endptr, 0);
if (!*endptr) {
/* It was a valid number */
}
}
- /* Try the old way - the hack where we allowed users to mount
+ /* Try the old way - the hack where we allowed users to mount
/dev/mtdblock$(n) but didn't actually _use_ the blkdev */
err = path_lookup(dev_name, LOOKUP_FOLLOW, &nd);
}
if (imajor(nd.dentry->d_inode) != MTD_BLOCK_MAJOR) {
- if (!(flags & MS_VERBOSE)) /* Yes I mean this. Strangely */
+ if (!(flags & MS_SILENT))
printk(KERN_NOTICE "Attempt to mount non-MTD device \"%s\" as JFFS2\n",
dev_name);
goto out;
D2(printk(KERN_DEBUG "jffs2: jffs2_put_super()\n"));
- if (!(sb->s_flags & MS_RDONLY))
- jffs2_stop_garbage_collect_thread(c);
down(&c->alloc_sem);
jffs2_flush_wbuf_pad(c);
up(&c->alloc_sem);
+
+ jffs2_sum_exit(c);
+
jffs2_free_ino_caches(c);
jffs2_free_raw_node_refs(c);
- kfree(c->blocks);
- jffs2_nand_flash_cleanup(c);
+ if (jffs2_blocks_use_vmalloc(c))
+ vfree(c->blocks);
+ else
+ kfree(c->blocks);
+ jffs2_flash_cleanup(c);
kfree(c->inocache_list);
if (c->mtd->sync)
c->mtd->sync(c->mtd);
static void jffs2_kill_sb(struct super_block *sb)
{
struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
+ if (!(sb->s_flags & MS_RDONLY))
+ jffs2_stop_garbage_collect_thread(c);
generic_shutdown_super(sb);
put_mtd_device(c->mtd);
kfree(c);
int ret;
printk(KERN_INFO "JFFS2 version 2.2."
-#ifdef CONFIG_FS_JFFS2_NAND
+#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
" (NAND)"
+#endif
+#ifdef CONFIG_JFFS2_SUMMARY
+ " (SUMMARY) "
#endif
" (C) 2001-2003 Red Hat, Inc.\n");
jffs2_inode_cachep = kmem_cache_create("jffs2_i",
sizeof(struct jffs2_inode_info),
- 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT,
+ 0, (SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
jffs2_i_init_once, NULL);
if (!jffs2_inode_cachep) {
printk(KERN_ERR "JFFS2 error: Failed to initialise inode cache\n");
return -ENOMEM;
}
- ret = jffs2_zlib_init();
+ ret = jffs2_compressors_init();
if (ret) {
- printk(KERN_ERR "JFFS2 error: Failed to initialise zlib workspaces\n");
+ printk(KERN_ERR "JFFS2 error: Failed to initialise compressors\n");
goto out;
}
ret = jffs2_create_slab_caches();
if (ret) {
printk(KERN_ERR "JFFS2 error: Failed to initialise slab caches\n");
- goto out_zlib;
+ goto out_compressors;
}
ret = register_filesystem(&jffs2_fs_type);
if (ret) {
out_slab:
jffs2_destroy_slab_caches();
- out_zlib:
- jffs2_zlib_exit();
+ out_compressors:
+ jffs2_compressors_exit();
out:
+ kmem_cache_destroy(jffs2_inode_cachep);
return ret;
}
{
unregister_filesystem(&jffs2_fs_type);
jffs2_destroy_slab_caches();
- jffs2_zlib_exit();
+ jffs2_compressors_exit();
kmem_cache_destroy(jffs2_inode_cachep);
}
MODULE_DESCRIPTION("The Journalling Flash File System, v2");
MODULE_AUTHOR("Red Hat, Inc.");
-MODULE_LICENSE("GPL"); // Actually dual-licensed, but it doesn't matter for
+MODULE_LICENSE("GPL"); // Actually dual-licensed, but it doesn't matter for
// the sake of this tag. It's Free Software.
git://git.onelab.eu / linux-2.6.git / blobdiff