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[JFFS2] Don't advance c->wbuf_ofs to next eraseblock after wbuf flush 

After flushing the last page of an eraseblock, don't leave the
wbuf 'offset' field pointing at the start of the next physical
eraseblock. This was causing a BUG() on NOR-ECC (Sibley) flash, where
we start writing a little further in, after the cleanmarker.

Debugged by Alexander Belyakov <abelyako@googlemail.com>

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
David Woodhouse 2007-05-05 09:52:49 +01:00
parent 693ef66d89
commit 3fddb6c985
1 changed files with 4 additions and 1 deletions
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3
fs/jffs2/wbuf.c
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@ -637,7 +637,10 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
memset(c->wbuf,0xff,c->wbuf_pagesize);
/* adjust write buffer offset, else we get a non contiguous write bug */
if (SECTOR_ADDR(c->wbuf_ofs) == SECTOR_ADDR(c->wbuf_ofs+c->wbuf_pagesize))
c->wbuf_ofs += c->wbuf_pagesize;
else
c->wbuf_ofs = 0xffffffff;
c->wbuf_len = 0;
return 0;
}