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authorMiklos Szeredi2011-12-13 11:58:49 +0100
committerMiklos Szeredi2011-12-13 11:58:49 +0100
commitb18da0c56e9ff43a007b6c8e302c62e720964151 (patch)
treedca57bc1042c576474529768533d6efb88716f35 /fs/fuse/dir.c
parentc411cc88d873b3f68635a04691f7f115c46bc39e (diff)
fuse: support ioctl on directories
Multiplexing filesystems may want to support ioctls on the underlying files and directores (e.g. FS_IOC_{GET,SET}FLAGS). Ioctl support on directories was missing so add it now. Reported-by: Antonio SJ Musumeci <bile@landofbile.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse/dir.c')
-rw-r--r--fs/fuse/dir.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 9f63e493a9b6..344577933f62 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1182,6 +1182,30 @@ static int fuse_dir_fsync(struct file *file, loff_t start, loff_t end,
return fuse_fsync_common(file, start, end, datasync, 1);
}
+static long fuse_dir_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct fuse_conn *fc = get_fuse_conn(file->f_mapping->host);
+
+ /* FUSE_IOCTL_DIR only supported for API version >= 7.18 */
+ if (fc->minor < 18)
+ return -ENOTTY;
+
+ return fuse_ioctl_common(file, cmd, arg, FUSE_IOCTL_DIR);
+}
+
+static long fuse_dir_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct fuse_conn *fc = get_fuse_conn(file->f_mapping->host);
+
+ if (fc->minor < 18)
+ return -ENOTTY;
+
+ return fuse_ioctl_common(file, cmd, arg,
+ FUSE_IOCTL_COMPAT | FUSE_IOCTL_DIR);
+}
+
static bool update_mtime(unsigned ivalid)
{
/* Always update if mtime is explicitly set */
@@ -1596,6 +1620,8 @@ static const struct file_operations fuse_dir_operations = {
.open = fuse_dir_open,
.release = fuse_dir_release,
.fsync = fuse_dir_fsync,
+ .unlocked_ioctl = fuse_dir_ioctl,
+ .compat_ioctl = fuse_dir_compat_ioctl,
};
static const struct inode_operations fuse_common_inode_operations = {