yaffs: Add xattrib support

[yaffs2.git] / yaffs_fs.c

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 6eb356c81e6e4276c0ca88813e7b83082b788bd9..b4ee69edf1f9642cc9ffc8bbc12bc931d3bb4b24 100644 (file)
--- a/yaffs_fs.c
+++ b/yaffs_fs.c
@@ -264,6 +264,15 @@ static int yaffs_writepage(struct page *page, struct writeback_control *wbc);
 static int yaffs_writepage(struct page *page);
 #endif
 
+#ifdef CONFIG_YAFFS_XATTR
+int yaffs_setxattr(struct dentry *dentry, const char *name,
+                       const void *value, size_t size, int flags);
+ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff,
+                       size_t size);
+int yaffs_removexattr(struct dentry *dentry, const char *name);
+ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size);
+#endif
+
 
 #if (YAFFS_USE_WRITE_BEGIN_END != 0)
 static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
@@ -355,12 +364,24 @@ static void zero_user_segment(struct page *page, unsigned start, unsigned end)
 
 static const struct inode_operations yaffs_file_inode_operations = {
        .setattr = yaffs_setattr,
+#ifdef CONFIG_YAFFS_XATTR
+       .setxattr = yaffs_setxattr,
+       .getxattr = yaffs_getxattr,
+       .listxattr = yaffs_listxattr,
+       .removexattr = yaffs_removexattr,
+#endif
 };
 
 static const struct inode_operations yaffs_symlink_inode_operations = {
        .readlink = yaffs_readlink,
        .follow_link = yaffs_follow_link,
        .setattr = yaffs_setattr,
+#ifdef CONFIG_YAFFS_XATTR
+       .setxattr = yaffs_setxattr,
+       .getxattr = yaffs_getxattr,
+       .listxattr = yaffs_listxattr,
+       .removexattr = yaffs_removexattr,
+#endif
 };
 
 static const struct inode_operations yaffs_dir_inode_operations = {
@@ -374,6 +395,12 @@ static const struct inode_operations yaffs_dir_inode_operations = {
        .mknod = yaffs_mknod,
        .rename = yaffs_rename,
        .setattr = yaffs_setattr,
+#ifdef CONFIG_YAFFS_XATTR
+       .setxattr = yaffs_setxattr,
+       .getxattr = yaffs_getxattr,
+       .listxattr = yaffs_listxattr,
+       .removexattr = yaffs_removexattr,
+#endif
 };
 
 static const struct file_operations yaffs_dir_operations = {
@@ -1836,6 +1863,124 @@ static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
        return error;
 }
 
+#ifdef CONFIG_YAFFS_XATTR
+int yaffs_setxattr(struct dentry *dentry, const char *name,
+                       const void *value, size_t size, int flags)
+{
+       struct inode *inode = dentry->d_inode;
+       int error = 0;
+       yaffs_Device *dev;
+       yaffs_Object *obj = yaffs_InodeToObject(inode);
+
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_setxattr of object %d\n"),
+               obj->objectId));
+
+
+       if (error == 0) {
+               int result;
+               dev = obj->myDev;
+               yaffs_GrossLock(dev);
+               result = yaffs_SetXAttribute(obj, name, value, size, flags);
+               if(result == YAFFS_OK)
+                       error = 0;
+               else if(result < 0)
+                       error = result;
+               yaffs_GrossUnlock(dev);
+
+       }
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_setxattr done returning %d\n"),error));
+
+       return error;
+}
+
+
+ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff,
+                       size_t size)
+{
+       struct inode *inode = dentry->d_inode;
+       int error = 0;
+       yaffs_Device *dev;
+       yaffs_Object *obj = yaffs_InodeToObject(inode);
+
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_getxattr of object %d\n"),
+               obj->objectId));
+
+
+       if (error == 0) {
+               dev = obj->myDev;
+               yaffs_GrossLock(dev);
+               error = yaffs_GetXAttribute(obj, name, buff, size);
+               yaffs_GrossUnlock(dev);
+
+       }
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_getxattr done returning %d\n"),error));
+
+       return error;
+}
+
+int yaffs_removexattr(struct dentry *dentry, const char *name)
+{
+       struct inode *inode = dentry->d_inode;
+       int error = 0;
+       yaffs_Device *dev;
+       yaffs_Object *obj = yaffs_InodeToObject(inode);
+
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_removexattr of object %d\n"),
+               obj->objectId));
+
+
+       if (error == 0) {
+               int result;
+               dev = obj->myDev;
+               yaffs_GrossLock(dev);
+               result = yaffs_RemoveXAttribute(obj, name);
+               if(result == YAFFS_OK)
+                       error = 0;
+               else if(result < 0)
+                       error = result;
+               yaffs_GrossUnlock(dev);
+
+       }
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_removexattr done returning %d\n"),error));
+
+       return error;
+}
+
+ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size)
+{
+       struct inode *inode = dentry->d_inode;
+       int error = 0;
+       yaffs_Device *dev;
+       yaffs_Object *obj = yaffs_InodeToObject(inode);
+
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_listxattr of object %d\n"),
+               obj->objectId));
+
+
+       if (error == 0) {
+               int result;
+               dev = obj->myDev;
+               yaffs_GrossLock(dev);
+               error = yaffs_ListXAttributes(obj, buff, size);
+               yaffs_GrossUnlock(dev);
+
+       }
+       T(YAFFS_TRACE_OS,
+               (TSTR("yaffs_listxattr done returning %d\n"),error));
+
+       return error;
+}
+
+#endif
+
+
 #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
 static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
@@ -2625,6 +2770,9 @@ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
 
 #ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
        param->disableLazyLoad = 1;
+#endif
+#ifdef CONFIG_YAFFS_XATTR
+       param->enableXattr = 1;
 #endif
        if(options.lazy_loading_overridden)
                param->disableLazyLoad = !options.lazy_loading_enabled;