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[PATCH] Add fs_subsys to enable filesystems to use sysfs 

This creates an "fs" subdirectory in sysfs so that GFS2 (or any other
filesystem, come to that) can make use of sysfs.

Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
David Teigland 2006-01-16 11:48:01 +00:00 committed by Steven Whitehouse
parent b346671fa1
commit fba7b94019
2 changed files with 8 additions and 0 deletions
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5
fs/namespace.c
View File

@ -48,6 +48,10 @@ static int hash_mask __read_mostly, hash_bits __read_mostly;
static kmem_cache_t *mnt_cache;
static struct rw_semaphore namespace_sem;
/* /sys/fs */
decl_subsys(fs, NULL, NULL);
EXPORT_SYMBOL_GPL(fs_subsys);
static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
{
unsigned long tmp = ((unsigned long)mnt / L1_CACHE_BYTES);
@ -1725,6 +1729,7 @@ void __init mnt_init(unsigned long mempages)
i--;
} while (i);
sysfs_init();
subsystem_register(&fs_subsys);
init_rootfs();
init_mount_tree();
}

3
include/linux/fs.h
View File

@ -1293,6 +1293,9 @@ extern int vfs_statfs(struct super_block *, struct kstatfs *);
#define FLOCK_VERIFY_READ 1
#define FLOCK_VERIFY_WRITE 2
/* /sys/fs */
extern struct subsystem fs_subsys;
extern int locks_mandatory_locked(struct inode *);
extern int locks_mandatory_area(int, struct inode *, struct file *, loff_t, size_t);