[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, 2 insertions, 0 deletions

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 677f3ed7f987..1cabdb229adb 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1024,6 +1024,8 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
         if (attr->ia_valid & ATTR_SIZE) {
                 unsigned long limit;
                 is_truncate = 1;
+                if (IS_SWAPFILE(inode))
+                        return -ETXTBSY;
                 limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
                 if (limit != RLIM_INFINITY && attr->ia_size > (loff_t) limit) {
                         send_sig(SIGXFSZ, current, 0);