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authorChristoph Hellwig <hch@infradead.org>2007-07-17 04:04:30 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:06 -0700
commitd37065cd6d6bbe98fd4be14d6c9e64c0bfa124c5 (patch)
tree03a996d3d93a4d5ebd737519f7a6f959ecdbce0d /fs/exportfs/expfs.c
parent5ca29607331fe37980dc3b488793ef8b1409b722 (diff)
knfsd: exportfs: add procedural interface for NFSD
Currently NFSD calls directly into filesystems through the export_operations structure. I plan to change this interface in various ways in later patches, and want to avoid the export of the default operations to NFSD, so this patch adds two simple exportfs_encode_fh/exportfs_decode_fh helpers for NFSD to call instead of poking into exportfs guts. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/exportfs/expfs.c')
-rw-r--r--fs/exportfs/expfs.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index dd132bb7b8f..db86006956b 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -3,6 +3,7 @@
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/module.h>
+#include <linux/mount.h>
#include <linux/namei.h>
struct export_operations export_op_default;
@@ -468,6 +469,26 @@ static struct dentry *export_decode_fh(struct super_block *sb, __u32 *fh, int fh
acceptable, context);
}
+int exportfs_encode_fh(struct dentry *dentry, __u32 *fh, int *max_len,
+ int connectable)
+{
+ struct export_operations *nop = dentry->d_sb->s_export_op;
+
+ return CALL(nop, encode_fh)(dentry, fh, max_len, connectable);
+}
+EXPORT_SYMBOL_GPL(exportfs_encode_fh);
+
+struct dentry *exportfs_decode_fh(struct vfsmount *mnt, __u32 *fh, int fh_len,
+ int fileid_type, int (*acceptable)(void *, struct dentry *),
+ void *context)
+{
+ struct export_operations *nop = mnt->mnt_sb->s_export_op;
+
+ return CALL(nop, decode_fh)(mnt->mnt_sb, fh, fh_len, fileid_type,
+ acceptable, context);
+}
+EXPORT_SYMBOL_GPL(exportfs_decode_fh);
+
struct export_operations export_op_default = {
.decode_fh = export_decode_fh,
.encode_fh = export_encode_fh,
@@ -477,7 +498,6 @@ struct export_operations export_op_default = {
.get_dentry = get_dentry,
};
-EXPORT_SYMBOL(export_op_default);
EXPORT_SYMBOL(find_exported_dentry);
MODULE_LICENSE("GPL");