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authorDavid Howells <dhowells@redhat.com>2006-06-23 02:02:58 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:42:45 -0700
commit726c334223180e3c0197cc980a432681370d4baf (patch)
tree8327b354bb3dc959a6606051ae6f8d4d035e38a2 /arch/mips
parent454e2398be9b9fa30433fccc548db34d19aa9958 (diff)
downloadop-kernel-dev-726c334223180e3c0197cc980a432681370d4baf.zip
op-kernel-dev-726c334223180e3c0197cc980a432681370d4baf.tar.gz
[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 'arch/mips')
-rw-r--r--arch/mips/kernel/sysirix.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index 5407b78..19e1ef4 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -694,7 +694,7 @@ asmlinkage int irix_statfs(const char __user *path,
if (error)
goto out;
- error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
+ error = vfs_statfs(nd.dentry, &kbuf);
if (error)
goto dput_and_out;
@@ -732,7 +732,7 @@ asmlinkage int irix_fstatfs(unsigned int fd, struct irix_statfs __user *buf)
goto out;
}
- error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
+ error = vfs_statfs(file->f_dentry, &kbuf);
if (error)
goto out_f;
@@ -1360,7 +1360,7 @@ asmlinkage int irix_statvfs(char __user *fname, struct irix_statvfs __user *buf)
error = user_path_walk(fname, &nd);
if (error)
goto out;
- error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
+ error = vfs_statfs(nd.dentry, &kbuf);
if (error)
goto dput_and_out;
@@ -1406,7 +1406,7 @@ asmlinkage int irix_fstatvfs(int fd, struct irix_statvfs __user *buf)
error = -EBADF;
goto out;
}
- error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
+ error = vfs_statfs(file->f_dentry, &kbuf);
if (error)
goto out_f;
@@ -1611,7 +1611,7 @@ asmlinkage int irix_statvfs64(char __user *fname, struct irix_statvfs64 __user *
error = user_path_walk(fname, &nd);
if (error)
goto out;
- error = vfs_statfs(nd.dentry->d_inode->i_sb, &kbuf);
+ error = vfs_statfs(nd.dentry, &kbuf);
if (error)
goto dput_and_out;
@@ -1658,7 +1658,7 @@ asmlinkage int irix_fstatvfs64(int fd, struct irix_statvfs __user *buf)
error = -EBADF;
goto out;
}
- error = vfs_statfs(file->f_dentry->d_inode->i_sb, &kbuf);
+ error = vfs_statfs(file->f_dentry, &kbuf);
if (error)
goto out_f;
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