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authorDavid Howells <dhowells@redhat.com>2006-06-23 05:02:58 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 10:42:45 -0400
commit726c334223180e3c0197cc980a432681370d4baf (patch)
tree8327b354bb3dc959a6606051ae6f8d4d035e38a2 /include/linux/mount.h
parent454e2398be9b9fa30433fccc548db34d19aa9958 (diff)
[PATCH] VFS: Permit filesystem to perform statfs with a known root dentry
Give the statfs superblock operation a dentry pointer rather than a superblock pointer. This complements the get_sb() patch. That reduced the significance of sb->s_root, allowing NFS to place a fake root there. However, NFS does require a dentry to use as a target for the statfs operation. This permits the root in the vfsmount to be used instead. linux/mount.h has been added where necessary to make allyesconfig build successfully. Interest has also been expressed for use with the FUSE and XFS filesystems. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Nathan Scott <nathans@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/mount.h')
-rw-r--r--include/linux/mount.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mount.h b/include/linux/mount.h
index b7472ae91fa4..60718f12caa9 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -17,6 +17,11 @@
17#include <linux/spinlock.h> 17#include <linux/spinlock.h>
18#include <asm/atomic.h> 18#include <asm/atomic.h>
19 19
20struct super_block;
21struct vfsmount;
22struct dentry;
23struct namespace;
24
20#define MNT_NOSUID 0x01 25#define MNT_NOSUID 0x01
21#define MNT_NODEV 0x02 26#define MNT_NODEV 0x02
22#define MNT_NOEXEC 0x04 27#define MNT_NOEXEC 0x04