From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751169AbaHICqt (ORCPT ); Fri, 8 Aug 2014 22:46:49 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:57794 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750813AbaHICqs (ORCPT ); Fri, 8 Aug 2014 22:46:48 -0400 X-AuditID: cbfee61a-f79e46d00000134f-84-53e58b958cb9 From: Chao Yu To: Jaegeuk Kim , Changman Lee Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: [f2fs-dev][PATCH 1/5] f2fs: add infra macro and sturct for inline dir Date: Sat, 09 Aug 2014 10:46:01 +0800 Message-id: <00bf01cfb37c$28d136b0$7a73a410$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Mailer: Microsoft Outlook 14.0 Thread-index: Ac+zfAXND+RJtj6RR92vRfthYDO0UQ== Content-language: zh-cn X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrALMWRmVeSWpSXmKPExsVy+t9jAd2p3U+DDTYvUrC4tq+RyeLJ+lnM FpcWuVtc3jWHzYHFY9OqTjaP3Qs+M3n0bVnF6PF5k1wASxSXTUpqTmZZapG+XQJXxuEpKQWT uSo2v9/L2sB4lKOLkYNDQsBE4uPbsi5GTiBTTOLCvfVsILaQwCJGibMf67sYuYDsH4wS+yb0 MIIk2ARUJJZ3/GcCsUUEvCQm7T/BAmIzC3hINHZ8ZwWxhQX8JM7deQJmswioSixf+ADM5hWw lLjacQLKFpT4MfkeVK+WxOZtTawQtrzE5jVvmSEOUpDYcfY1I8QuPYn2ra3sEDXiEhuP3GKZ wCgwC8moWUhGzUIyahaSlgWMLKsYRVMLkguKk9JzDfWKE3OLS/PS9ZLzczcxgsP5mdQOxpUN FocYBTgYlXh4V9g8DRZiTSwrrsw9xCjBwawkwruwEijEm5JYWZValB9fVJqTWnyIUZqDRUmc 90CrdaCQQHpiSWp2ampBahFMlomDU6qBUbzfPlLwq0nAX45QgY4bGce33iruOm9c8a4jRP2D zummPUcPqckertAq/Sht2ao+90BM14q5MWU15zZoTbhdFpmv/2N7b9e/SR9PHdrHLt70L/PH Rp+HrV137kZdu8o+Ifac2mHXpO2VL2Ru7k1IePz6WNTWri9K+jbMctM09JNsom/5vGvOUWIp zkg01GIuKk4EAEvkUAtjAgAA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch defines macro and inline dentry struct for inline dir infrastructure. Signed-off-by: Chao Yu --- include/linux/f2fs_fs.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 6ff0b0b..a79726b 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -423,6 +423,24 @@ struct f2fs_dentry_block { __u8 filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN]; } __packed; +/* for inline dir */ +#define NR_INLINE_DENTRY (MAX_INLINE_DATA * BITS_PER_BYTE / \ + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ + BITS_PER_BYTE + 1)) +#define INLINE_DENTRY_BITMAP_SIZE ((NR_INLINE_DENTRY + \ + BITS_PER_BYTE - 1) / BITS_PER_BYTE) +#define INLINE_RESERVED_SIZE (MAX_INLINE_DATA - \ + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ + NR_INLINE_DENTRY + INLINE_DENTRY_BITMAP_SIZE)) + +/* inline directory entry structure */ +struct f2fs_inline_dentry { + __u8 dentry_bitmap[INLINE_DENTRY_BITMAP_SIZE]; + __u8 reserved[INLINE_RESERVED_SIZE]; + struct f2fs_dir_entry dentry[NR_INLINE_DENTRY]; + __u8 filename[NR_INLINE_DENTRY][F2FS_SLOT_LEN]; +} __packed; + /* file types used in inode_info->flags */ enum { F2FS_FT_UNKNOWN, -- 2.0.1.474.g72c7794