[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>
This commit is contained in:
committed by
Linus Torvalds
parent
454e2398be
commit
726c334223
@ -99,7 +99,7 @@ prototypes:
|
||||
int (*sync_fs)(struct super_block *sb, int wait);
|
||||
void (*write_super_lockfs) (struct super_block *);
|
||||
void (*unlockfs) (struct super_block *);
|
||||
int (*statfs) (struct super_block *, struct kstatfs *);
|
||||
int (*statfs) (struct dentry *, struct kstatfs *);
|
||||
int (*remount_fs) (struct super_block *, int *, char *);
|
||||
void (*clear_inode) (struct inode *);
|
||||
void (*umount_begin) (struct super_block *);
|
||||
|
@ -211,7 +211,7 @@ struct super_operations {
|
||||
int (*sync_fs)(struct super_block *sb, int wait);
|
||||
void (*write_super_lockfs) (struct super_block *);
|
||||
void (*unlockfs) (struct super_block *);
|
||||
int (*statfs) (struct super_block *, struct kstatfs *);
|
||||
int (*statfs) (struct dentry *, struct kstatfs *);
|
||||
int (*remount_fs) (struct super_block *, int *, char *);
|
||||
void (*clear_inode) (struct inode *);
|
||||
void (*umount_begin) (struct super_block *);
|
||||
|
Reference in New Issue
Block a user