diff options
| author | Alexander Belyakov <abelyako@mail.ru> | 2008-10-17 19:19:13 +0400 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-18 11:54:09 +0100 |
| commit | 5bf1723723487ddb0b9c9641b6559da96b27cc93 (patch) | |
| tree | 809313985fb6d037572314e9bc572c3342594127 /fs | |
| parent | 43b5693d404127697d62962def8c1bfe3a89811a (diff) | |
| download | lwn-5bf1723723487ddb0b9c9641b6559da96b27cc93.tar.gz lwn-5bf1723723487ddb0b9c9641b6559da96b27cc93.zip | |
[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')
| -rw-r--r-- | fs/jffs2/nodemgmt.c | 4 | ||||
| -rw-r--r-- | fs/jffs2/wbuf.c | 5 |
2 files changed, 5 insertions, 4 deletions
diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index a9bf9603c1ba..0875b60b4bf7 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; diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index 0e78b00035e4..d9a721e6db70 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -679,10 +679,7 @@ 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_ofs += c->wbuf_pagesize; c->wbuf_len = 0; return 0; } |