To provide fsnotify object inodes being watched without binding to alphabetical path we need to encode them with exportfs help. This patch adds a helper which operates with plain inodes directly. This feature is CONFIG_CHECKPOINT_RESTORE only. Signed-off-by: Cyrill Gorcunov CC: Andrew Morton CC: Pavel Emelyanov CC: James Bottomley --- fs/exportfs/expfs.c | 21 +++++++++++++++++++++ include/linux/exportfs.h | 4 ++++ 2 files changed, 25 insertions(+) Index: linux-2.6.git/fs/exportfs/expfs.c =================================================================== --- linux-2.6.git.orig/fs/exportfs/expfs.c +++ linux-2.6.git/fs/exportfs/expfs.c @@ -302,6 +302,27 @@ out: return error; } +#ifdef CONFIG_CHECKPOINT_RESTORE +int export_encode_inode_fh(struct inode *inode, struct fid *fid, int *max_len) +{ + int len = *max_len; + int type = FILEID_INO32_GEN; + + if (len < 2) { + *max_len = 2; + return 255; + } + + len = 2; + fid->i32.ino = inode->i_ino; + fid->i32.gen = inode->i_generation; + *max_len = len; + + return type; +} +EXPORT_SYMBOL_GPL(export_encode_inode_fh); +#endif + /** * export_encode_fh - default export_operations->encode_fh function * @dentry: the dentry to encode Index: linux-2.6.git/include/linux/exportfs.h =================================================================== --- linux-2.6.git.orig/include/linux/exportfs.h +++ linux-2.6.git/include/linux/exportfs.h @@ -177,6 +177,10 @@ struct export_operations { int (*commit_metadata)(struct inode *inode); }; +#ifdef CONFIG_CHECKPOINT_RESTORE +extern int export_encode_inode_fh(struct inode *inode, struct fid *fid, int *max_len); +#endif + extern int exportfs_encode_fh(struct dentry *dentry, struct fid *fid, int *max_len, int connectable); extern struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/