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authorBrijesh Singh <brijesh.s.singh@gmail.com>2007-07-06 14:35:43 +0300
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-07-18 16:57:52 +0300
commit76eafe479ec30dd72b8cf209c4f576eac3c93112 (patch)
tree68fa0b8943e8629a9208951a2d8dede4b8de17e6 /drivers/mtd/ubi
parent2f176f79877937082ce052977e552a75e23a73d1 (diff)
downloadop-kernel-dev-76eafe479ec30dd72b8cf209c4f576eac3c93112.zip
op-kernel-dev-76eafe479ec30dd72b8cf209c4f576eac3c93112.tar.gz
UBI: bugfix in sqnum calculation
Hi,I came across problem of having two leb with same sequence no.This happens when we continuously write one block again and again and reboot machine before background thread erases those blocks. The problem here was,when we find two blocks with same sequence no,we take the higher one,but we were not updating max seq no,so next block may have the same seqnum. This patch solves this problem. Signed-off-by: Brijesh Singh <brijesh.s.singh@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi')
-rw-r--r--drivers/mtd/ubi/scan.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index 23e30ac..ce26b1b 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -437,6 +437,9 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si,
if (IS_ERR(sv) < 0)
return PTR_ERR(sv);
+ if (si->max_sqnum < sqnum)
+ si->max_sqnum = sqnum;
+
/*
* Walk the RB-tree of logical eraseblocks of volume @vol_id to look
* if this is the first instance of this logical eraseblock or not.
@@ -563,9 +566,6 @@ int ubi_scan_add_used(const struct ubi_device *ubi, struct ubi_scan_info *si,
sv->last_data_size = be32_to_cpu(vid_hdr->data_size);
}
- if (si->max_sqnum < sqnum)
- si->max_sqnum = sqnum;
-
sv->leb_count += 1;
rb_link_node(&seb->u.rb, parent, p);
rb_insert_color(&seb->u.rb, &sv->root);
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