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authorAlexander Belyakov <abelyako@mail.ru>2008-10-17 19:19:13 +0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-10-18 11:54:09 +0100
commit5bf1723723487ddb0b9c9641b6559da96b27cc93 (patch)
tree809313985fb6d037572314e9bc572c3342594127 /fs/jffs2/nodemgmt.c
parent43b5693d404127697d62962def8c1bfe3a89811a (diff)
downloadop-kernel-dev-5bf1723723487ddb0b9c9641b6559da96b27cc93.zip
op-kernel-dev-5bf1723723487ddb0b9c9641b6559da96b27cc93.tar.gz
[JFFS2] Write buffer offset adjustment for NOR-ECC (Sibley) flash
After choosing new c->nextblock, don't leave the wbuf offset field occasionally pointing at the start of the next physical eraseblock. This was causing a BUG() on NOR-ECC (Sibley) flash, where we start writing after the cleanmarker. Among other this fix should cover write buffer offset adjustment after flushing the last page of an eraseblock. Signed-off-by: Alexander Belyakov <abelyako@googlemail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'fs/jffs2/nodemgmt.c')
-rw-r--r--fs/jffs2/nodemgmt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c
index a9bf960..0875b60 100644
--- a/fs/jffs2/nodemgmt.c
+++ b/fs/jffs2/nodemgmt.c
@@ -261,6 +261,10 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c)
jffs2_sum_reset_collected(c->summary); /* reset collected summary */
+ /* adjust write buffer offset, else we get a non contiguous write bug */
+ if (!(c->wbuf_ofs % c->sector_size) && !c->wbuf_len)
+ c->wbuf_ofs = 0xffffffff;
+
D1(printk(KERN_DEBUG "jffs2_find_nextblock(): new nextblock = 0x%08x\n", c->nextblock->offset));
return 0;
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