Add Waldemar's patches for Linux 3.2

[yaffs2.git] / direct / yaffsfs.c

diff --git a/direct/yaffsfs.c b/direct/yaffsfs.c
index 2b2b8593422466736b82c20d5ccd8fb534bf2c57..37d6cae1d0cce812d4217f6444c06fbaf8360dd5 100644 (file)
--- a/direct/yaffsfs.c
+++ b/direct/yaffsfs.c
@@ -743,7 +743,15 @@ int yaffs_dup(int handle)
 
 }
 
+static int yaffsfs_TooManyObjects(struct yaffs_dev *dev)
+{
+       int current_objects = dev->n_obj - dev->n_deleted_files;
 
+       if(dev->param.max_objects && current_objects > dev->param.max_objects)
+               return 1;
+       else
+               return 0;
+}
 
 int yaffs_open_sharing(const YCHAR *path, int oflag, int mode, int sharing)
 {
@@ -915,6 +923,9 @@ int yaffs_open_sharing(const YCHAR *path, int oflag, int mode, int sharing)
                        if(dir->my_dev->read_only){
                                yaffsfs_SetError(-EROFS);
                                errorReported = 1;
+                       } else if(yaffsfs_TooManyObjects(dir->my_dev)) {
+                               yaffsfs_SetError(-ENFILE);
+                               errorReported = 1;
                        } else
                                obj = yaffs_create_file(dir,name,mode,0,0);
 
@@ -2366,6 +2377,8 @@ int yaffs_mkdir(const YCHAR *path, mode_t mode)
                yaffsfs_SetError(-ELOOP);
        else if(!parent)
                yaffsfs_SetError(-ENOENT);
+       else if(yaffsfs_TooManyObjects(parent->my_dev))
+               yaffsfs_SetError(-ENFILE);
        else if(strnlen(name,5) == 0){
                /* Trying to make the root itself */
                yaffsfs_SetError(-EEXIST);
@@ -2707,6 +2720,14 @@ int yaffs_inodecount(const YCHAR *path)
 
 void yaffs_add_device(struct yaffs_dev *dev)
 {
+       struct list_head *cfg;
+       /* First check that the device is not in the list. */
+
+       list_for_each(cfg, &yaffsfs_deviceList){
+               if(dev == list_entry(cfg, struct yaffs_dev, dev_list))
+                       return;
+       }
+
        dev->is_mounted = 0;
        dev->param.remove_obj_fn = yaffsfs_RemoveObjectCallback;
 
@@ -2964,6 +2985,8 @@ int yaffs_symlink(const YCHAR *oldpath, const YCHAR *newpath)
                yaffsfs_SetError(-ELOOP);
        else if( !parent || strnlen(name,5) < 1)
                yaffsfs_SetError(-ENOENT);
+       else if(yaffsfs_TooManyObjects(parent->my_dev))
+               yaffsfs_SetError(-ENFILE);
        else if(parent->my_dev->read_only)
                yaffsfs_SetError(-EROFS);
        else if(parent){
@@ -3056,6 +3079,8 @@ int yaffs_link(const YCHAR *oldpath, const YCHAR *linkpath)
                yaffsfs_SetError(-ENOENT);
        else if(obj->my_dev->read_only)
                yaffsfs_SetError(-EROFS);
+       else if(yaffsfs_TooManyObjects(obj->my_dev))
+               yaffsfs_SetError(-ENFILE);
        else if(lnk)
                yaffsfs_SetError(-EEXIST);
        else if(lnk_dir->my_dev != obj->my_dev)