From: Bean Huo <jackyard88@gmail.com>
To: richard@nod.at, dedekind1@gmail.com, adrian.hunter@intel.com,
computersforpeace@gmail.com, boris.brezillon@free-electrons.com
Cc: beanhuo@micron.com, linux-mtd@lists.infradead.org,
linux-kernel@vger.kernel.org, zszubbocsev@micron.com,
peterpandong@micron.com
Subject: [PATCH v2 13/17] drivers:mtd:ubi:add bakvol init while attach ubi
Date: Tue, 2 Feb 2016 02:30:48 +0000 [thread overview]
Message-ID: <1454380252-16170-14-git-send-email-jackyard88@gmail.com> (raw)
In-Reply-To: <1454380252-16170-1-git-send-email-jackyard88@gmail.com>
From: Bean Huo <beanhuo@micron.com>
This file is to initial bakvol moduel and scan PEB to find
bakvol PEB while attach ubi device.
Signed-off-by: BeanHuo <beanhuo@micron.com>
---
drivers/mtd/ubi/attach.c | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index 68eea5b..5c38854 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -919,6 +919,15 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
err = ubi_io_read_vid_hdr(ubi, pnum, vidh, 0);
if (err < 0)
return err;
+
+#ifdef CONFIG_MTD_UBI_MLC_NAND_BAKVOL
+ /*
+ * Before analyze VID header, call ubi_bakvol_peb_scan to
+ * find out backup block and build the backup log volume first.
+ */
+ ubi_bakvol_peb_scan(ubi, vidh, pnum);
+#endif
+
switch (err) {
case 0:
break;
@@ -995,7 +1004,8 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
*vid = vol_id;
if (sqnum)
*sqnum = be64_to_cpu(vidh->sqnum);
- if (vol_id > UBI_MAX_VOLUMES && vol_id != UBI_LAYOUT_VOLUME_ID) {
+ if ((vol_id > UBI_MAX_VOLUMES && vol_id != UBI_LAYOUT_VOLUME_ID)
+ && vol_id != UBI_BACKUP_VOLUME_ID) {
int lnum = be32_to_cpu(vidh->lnum);
/* Unsupported internal volume */
@@ -1408,6 +1418,12 @@ int ubi_attach(struct ubi_device *ubi, int force_scan)
if (!ai)
return -ENOMEM;
+#ifdef CONFIG_MTD_UBI_MLC_NAND_BAKVOL
+ err = ubi_bakvol_module_init(ubi);
+ if (err)
+ goto out_ai;
+#endif
+
#ifdef CONFIG_MTD_UBI_FASTMAP
/* On small flash devices we disable fastmap in any case. */
if ((int)mtd_div_by_eb(ubi->mtd->size, ubi->mtd) <= UBI_FM_MAX_START) {
@@ -1449,6 +1465,12 @@ int ubi_attach(struct ubi_device *ubi, int force_scan)
if (err)
goto out_ai;
+#ifdef CONFIG_MTD_UBI_MLC_NAND_BAKVOL
+ err = ubi_bakvol_module_init_tail(ubi, ai);
+ if (err)
+ goto out_ai;
+#endif
+
err = ubi_wl_init(ubi, ai);
if (err)
goto out_vtbl;
--
1.9.1
next prev parent reply other threads:[~2016-02-02 2:37 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-02 2:30 [PATCH v2 00/17] Add a bakvol module in UBI layer for MLC paired page power loss issue Bean Huo
2016-02-02 2:30 ` [PATCH v2 01/17] include:mtd:add multi-plane page program command Bean Huo
2016-02-02 2:30 ` [PATCH v2 02/17] include:mtd:add multi-plane program in mtd_info Bean Huo
2016-02-02 2:30 ` [PATCH v2 03/17] drivers:mtd:add dual plane page program support in partition layer Bean Huo
2016-02-02 3:00 ` kbuild test robot
2016-02-02 2:30 ` [PATCH v2 04/17] drivers:mtd:nand:enable dual plane page program function Bean Huo
2016-02-02 3:04 ` kbuild test robot
2016-02-02 2:30 ` [PATCH v2 05/17] drivers:mtd:ubi:add bakvol on-flash and RAM data structures Bean Huo
2016-02-02 2:30 ` [PATCH v2 06/17] drivers:mtd:ubi:add bakvol function define in ubi layer Bean Huo
2016-02-02 3:05 ` kbuild test robot
2016-02-02 3:08 ` kbuild test robot
2016-02-02 2:30 ` [PATCH v2 07/17] fs:ubifs:add bakvol function define in ubifs layer Bean Huo
2016-02-02 2:30 ` [PATCH v2 08/17] drivers:mtd:ubi:disable bakvol function while writing volume table Bean Huo
2016-02-02 2:30 ` [PATCH v2 09/17] drivers:mtd:ubi:get PEB according to specfied plane number Bean Huo
2016-02-02 2:30 ` [PATCH v2 10/17] drivers:mtd:ubi:enable bakvol function for fastmap operation Bean Huo
2016-02-02 2:30 ` [PATCH v2 11/17] drivers:mtd:ubi:add disable/enable bakvol while ubi write Bean Huo
2016-02-02 2:30 ` [PATCH v2 12/17] drivers:mtd:ubi:add disable bakvol while ubi detach Bean Huo
2016-02-02 2:30 ` Bean Huo [this message]
2016-02-02 2:30 ` [PATCH v2 14/17] drivers:mtd:ubi:add backup operation in ubi_io_write Bean Huo
2016-02-02 3:22 ` kbuild test robot
2016-02-02 2:30 ` [PATCH v2 15/17] fs:ubifs:enable bakvol module and recover operation Bean Huo
2016-02-02 2:30 ` [PATCH v2 16/17] driver:mtd:ubi:add new bakvol module in ubi layer Bean Huo
2016-02-02 2:30 ` [PATCH v2 17/17] drivers:mtd:ubi: Kconfig Makefile Bean Huo
2016-02-02 3:22 ` kbuild test robot
2016-02-02 3:56 ` kbuild test robot
2016-02-02 3:58 ` kbuild test robot
2016-02-02 4:15 ` Bean Huo 霍斌斌 (beanhuo)
2016-02-03 0:46 ` Brian Norris
2016-02-03 6:14 ` Bean Huo 霍斌斌 (beanhuo)
2016-02-02 23:06 ` [PATCH v2 00/17] Add a bakvol module in UBI layer for MLC paired page power loss issue Richard Weinberger
2016-02-03 6:11 ` Bean Huo 霍斌斌 (beanhuo)
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