diff options
author | David Howells <dhowells@redhat.com> | 2006-06-23 05:02:58 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 10:42:45 -0400 |
commit | 726c334223180e3c0197cc980a432681370d4baf (patch) | |
tree | 8327b354bb3dc959a6606051ae6f8d4d035e38a2 /fs/udf/super.c | |
parent | 454e2398be9b9fa30433fccc548db34d19aa9958 (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 'fs/udf/super.c')
-rw-r--r-- | fs/udf/super.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/udf/super.c b/fs/udf/super.c index 2250774a831d..44fe2cb0bbb2 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c | |||
@@ -91,7 +91,7 @@ static void udf_load_partdesc(struct super_block *, struct buffer_head *); | |||
91 | static void udf_open_lvid(struct super_block *); | 91 | static void udf_open_lvid(struct super_block *); |
92 | static void udf_close_lvid(struct super_block *); | 92 | static void udf_close_lvid(struct super_block *); |
93 | static unsigned int udf_count_free(struct super_block *); | 93 | static unsigned int udf_count_free(struct super_block *); |
94 | static int udf_statfs(struct super_block *, struct kstatfs *); | 94 | static int udf_statfs(struct dentry *, struct kstatfs *); |
95 | 95 | ||
96 | /* UDF filesystem type */ | 96 | /* UDF filesystem type */ |
97 | static int udf_get_sb(struct file_system_type *fs_type, | 97 | static int udf_get_sb(struct file_system_type *fs_type, |
@@ -1779,8 +1779,10 @@ udf_put_super(struct super_block *sb) | |||
1779 | * Written, tested, and released. | 1779 | * Written, tested, and released. |
1780 | */ | 1780 | */ |
1781 | static int | 1781 | static int |
1782 | udf_statfs(struct super_block *sb, struct kstatfs *buf) | 1782 | udf_statfs(struct dentry *dentry, struct kstatfs *buf) |
1783 | { | 1783 | { |
1784 | struct super_block *sb = dentry->d_sb; | ||
1785 | |||
1784 | buf->f_type = UDF_SUPER_MAGIC; | 1786 | buf->f_type = UDF_SUPER_MAGIC; |
1785 | buf->f_bsize = sb->s_blocksize; | 1787 | buf->f_bsize = sb->s_blocksize; |
1786 | buf->f_blocks = UDF_SB_PARTLEN(sb, UDF_SB_PARTITION(sb)); | 1788 | buf->f_blocks = UDF_SB_PARTLEN(sb, UDF_SB_PARTITION(sb)); |