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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-08-27 00:23:02 +0900 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-10-23 09:24:34 +0900 |
| commit | 8e656fd518784b49453f60c5f78b78703bc85cb2 (patch) | |
| tree | 7adf4b71aba4bdf31dc05489a06933c48a0ea6f2 /fs/nilfs2/export.h | |
| parent | 4d8d9293dce503eb0e083e17a02a328d397e7f00 (diff) | |
| download | linux-rt-8e656fd518784b49453f60c5f78b78703bc85cb2.tar.gz | |
nilfs2: make snapshots in checkpoint tree exportable
The previous export operations cannot handle multiple versions of
a filesystem if they belong to the same sb instance.
This adds a new type of file handle and extends export operations so
that they can get the inode specified by a checkpoint number as well
as an inode number and a generation number.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/export.h')
| -rw-r--r-- | fs/nilfs2/export.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/nilfs2/export.h b/fs/nilfs2/export.h new file mode 100644 index 000000000000..a71cc412b651 --- /dev/null +++ b/fs/nilfs2/export.h @@ -0,0 +1,17 @@ +#ifndef NILFS_EXPORT_H +#define NILFS_EXPORT_H + +#include <linux/exportfs.h> + +extern const struct export_operations nilfs_export_ops; + +struct nilfs_fid { + u64 cno; + u64 ino; + u32 gen; + + u32 parent_gen; + u64 parent_ino; +} __attribute__ ((packed)); + +#endif |