1 files changed, 9 insertions, 0 deletions

diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 298c1d4c1534..652c9d5df973 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -258,6 +258,7 @@ enum {
         OPT_DEFAULT_PERMISSIONS,
         OPT_ALLOW_OTHER,
         OPT_KERNEL_CACHE,
+        OPT_DIRECT_IO,
         OPT_MAX_READ,
         OPT_ERR
 };
@@ -270,6 +271,7 @@ static match_table_t tokens = {
         {OPT_DEFAULT_PERMISSIONS,       "default_permissions"},
         {OPT_ALLOW_OTHER,               "allow_other"},
         {OPT_KERNEL_CACHE,              "kernel_cache"},
+        {OPT_DIRECT_IO,                 "direct_io"},
         {OPT_MAX_READ,                  "max_read=%u"},
         {OPT_ERR,                       NULL}
 };
@@ -329,6 +331,10 @@ static int parse_fuse_opt(char *opt, struct fuse_mount_data *d)
                         d->flags |= FUSE_KERNEL_CACHE;
                         break;
 
+                case OPT_DIRECT_IO:
+                        d->flags |= FUSE_DIRECT_IO;
+                        break;
+
                 case OPT_MAX_READ:
                         if (match_int(&args[0], &value))
                                 return 0;
@@ -359,6 +365,8 @@ static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
                 seq_puts(m, ",allow_other");
         if (fc->flags & FUSE_KERNEL_CACHE)
                 seq_puts(m, ",kernel_cache");
+        if (fc->flags & FUSE_DIRECT_IO)
+                seq_puts(m, ",direct_io");
         if (fc->max_read != ~0)
                 seq_printf(m, ",max_read=%u", fc->max_read);
         return 0;
@@ -489,6 +497,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
         fc->max_read = d.max_read;
         if (fc->max_read / PAGE_CACHE_SIZE < fc->bdi.ra_pages)
                 fc->bdi.ra_pages = fc->max_read / PAGE_CACHE_SIZE;
+        fc->max_write = FUSE_MAX_IN / 2;
 
         err = -ENOMEM;
         root = get_root_inode(sb, d.rootmode);