[PATCH] fuse: add bmap support

Add support for the BMAP operation for block device based filesystems.  This
is needed to support swap-files and lilo.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/linux/fuse.h b/include/linux/fuse.h
index 76336327a941..162a754f4db7 100644
--- a/include/linux/fuse.h
+++ b/include/linux/fuse.h
@@ -132,6 +132,7 @@ enum fuse_opcode {
         FUSE_ACCESS        = 34,
         FUSE_CREATE        = 35,
         FUSE_INTERRUPT     = 36,
+        FUSE_BMAP          = 37,
 };
 
 /* The read buffer is required to be at least 8k, but may be much larger */
@@ -302,6 +303,16 @@ struct fuse_interrupt_in {
         __u64   unique;
 };
 
+struct fuse_bmap_in {
+        __u64   block;
+        __u32   blocksize;
+        __u32   padding;
+};
+
+struct fuse_bmap_out {
+        __u64   block;
+};
+
 struct fuse_in_header {
         __u32   len;
         __u32   opcode;