3 files changed, 38 insertions, 8 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index fee645b580cc..99c73066b82f 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -2645,7 +2645,6 @@ struct spufs_tree_descr spufs_dir_contents[] = {
         { "tid", &spufs_tid_fops, 0444, },
         { "stat", &spufs_stat_fops, 0444, },
         { "switch_log", &spufs_switch_log_fops, 0444 },
-        { ".ctx", &spufs_ctx_fops, 0444, },
         {},
 };
 
@@ -2671,6 +2670,10 @@ struct spufs_tree_descr spufs_dir_nosched_contents[] = {
         { "object-id", &spufs_object_id_ops, 0666, },
         { "tid", &spufs_tid_fops, 0444, },
         { "stat", &spufs_stat_fops, 0444, },
+        {},
+};
+
+struct spufs_tree_descr spufs_dir_debug_contents[] = {
         { ".ctx", &spufs_ctx_fops, 0444, },
         {},
 };
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index c662ca783601..7123472801d9 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -42,10 +42,19 @@
 
 #include "spufs.h"
 
+struct spufs_sb_info {
+        int debug;
+};
+
 static struct kmem_cache *spufs_inode_cache;
 char *isolated_loader;
 static int isolated_loader_size;
 
+static struct spufs_sb_info *spufs_get_sb_info(struct super_block *sb)
+{
+        return sb->s_fs_info;
+}
+
 static struct inode *
 spufs_alloc_inode(struct super_block *sb)
 {
@@ -280,6 +289,13 @@ spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags,
         if (ret)
                 goto out_free_ctx;
 
+        if (spufs_get_sb_info(dir->i_sb)->debug)
+                ret = spufs_fill_dir(dentry, spufs_dir_debug_contents,
+                                mode, ctx);
+
+        if (ret)
+                goto out_free_ctx;
+
         d_instantiate(dentry, inode);
         dget(dentry);
         dir->i_nlink++;
@@ -640,18 +656,19 @@ out:
 
 /* File system initialization */
 enum {
-        Opt_uid, Opt_gid, Opt_mode, Opt_err,
+        Opt_uid, Opt_gid, Opt_mode, Opt_debug, Opt_err,
 };
 
 static match_table_t spufs_tokens = {
-        { Opt_uid,  "uid=%d" },
-        { Opt_gid,  "gid=%d" },
-        { Opt_mode, "mode=%o" },
-        { Opt_err,   NULL  },
+        { Opt_uid,   "uid=%d" },
+        { Opt_gid,   "gid=%d" },
+        { Opt_mode,  "mode=%o" },
+        { Opt_debug, "debug" },
+        { Opt_err,    NULL  },
 };
 
 static int
-spufs_parse_options(char *options, struct inode *root)
+spufs_parse_options(struct super_block *sb, char *options, struct inode *root)
 {
         char *p;
         substring_t args[MAX_OPT_ARGS];
@@ -679,6 +696,9 @@ spufs_parse_options(char *options, struct inode *root)
                                 return 0;
                         root->i_mode = option | S_IFDIR;
                         break;
+                case Opt_debug:
+                        spufs_get_sb_info(sb)->debug = 1;
+                        break;
                 default:
                         return 0;
                 }
@@ -737,7 +757,7 @@ spufs_create_root(struct super_block *sb, void *data)
         SPUFS_I(inode)->i_ctx = NULL;
 
         ret = -EINVAL;
-        if (!spufs_parse_options(data, inode))
+        if (!spufs_parse_options(sb, data, inode))
                 goto out_iput;
 
         ret = -ENOMEM;
@@ -755,6 +775,7 @@ out:
 static int
 spufs_fill_super(struct super_block *sb, void *data, int silent)
 {
+        struct spufs_sb_info *info;
         static struct super_operations s_ops = {
                 .alloc_inode = spufs_alloc_inode,
                 .destroy_inode = spufs_destroy_inode,
@@ -766,11 +787,16 @@ spufs_fill_super(struct super_block *sb, void *data, int silent)
 
         save_mount_options(sb, data);
 
+        info = kzalloc(sizeof(*info), GFP_KERNEL);
+        if (!info)
+                return -ENOMEM;
+
         sb->s_maxbytes = MAX_LFS_FILESIZE;
         sb->s_blocksize = PAGE_CACHE_SIZE;
         sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
         sb->s_magic = SPUFS_MAGIC;
         sb->s_op = &s_ops;
+        sb->s_fs_info = info;
 
         return spufs_create_root(sb, data);
 }
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 413605406bda..8ae8ef9dfc22 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -244,6 +244,7 @@ struct spufs_tree_descr {
 
 extern struct spufs_tree_descr spufs_dir_contents[];
 extern struct spufs_tree_descr spufs_dir_nosched_contents[];
+extern struct spufs_tree_descr spufs_dir_debug_contents[];
 
 /* system call implementation */
 extern struct spufs_calls spufs_calls;