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fs/romfs: return f_fsid for statfs(2)

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Make romfs return f_fsid info for statfs(2).

Signed-off-by: Coly Li <coly.li@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Coly Li 2009-04-06 19:01:12 -07:00 committed by Linus Torvalds
parent bdc8e5f85f
commit 8a59f5d252
1 changed files with 5 additions and 0 deletions
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5
fs/romfs/super.c
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@ -408,12 +408,17 @@ static void romfs_destroy_inode(struct inode *inode)
*/ */
static int romfs_statfs(struct dentry *dentry, struct kstatfs *buf) static int romfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{ {
struct super_block *sb = dentry->d_sb;
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
buf->f_type = ROMFS_MAGIC; buf->f_type = ROMFS_MAGIC;
buf->f_namelen = ROMFS_MAXFN; buf->f_namelen = ROMFS_MAXFN;
buf->f_bsize = ROMBSIZE; buf->f_bsize = ROMBSIZE;
buf->f_bfree = buf->f_bavail = buf->f_ffree; buf->f_bfree = buf->f_bavail = buf->f_ffree;
buf->f_blocks = buf->f_blocks =
(romfs_maxsize(dentry->d_sb) + ROMBSIZE - 1) >> ROMBSBITS; (romfs_maxsize(dentry->d_sb) + ROMBSIZE - 1) >> ROMBSBITS;
buf->f_fsid.val[0] = (u32)id;
buf->f_fsid.val[1] = (u32)(id >> 32);
return 0; return 0;
} }