From: "leeyang" <leeyang@ycig.com>
To: <linux-mtd@lists.infradead.org>
Subject: mmap on jffs2(2.4.19)
Date: Mon, 21 Apr 2003 14:01:55 +0800 [thread overview]
Message-ID: <002a01c307cb$86dad630$cc00a8c0@ycigrnd> (raw)
I need mmap a "writable" file,
and it fails.My code is as below:
fd = open("/usr/dat/sot.dat",O_RDWR,FILEMODE);
ptr1=mmap(NULL,filesize,PROT_READ|PROT_WRITE,MAP_SHARED,fd,0);
fd returns 3,but ptr1 returns -1 and
mmap errno says invalid agrument.
These codes runs well on ext2.
Then I checked the old maillist and source code.
It seems jffs2 currently not support mmap writable.
Am I right?
In
http://lists.infradead.org/pipermail/linux-mtd/2002-July/005436.html
dw said "some kind of mtd_remap()",
Has it been implemented now?
BTW:
My last msg was blocked by
"Message has a suspicious header"
I'm not sure the reason,I guess
the smtp server I used is broken,
and I change to another one,
hope this one works.
leeyang
reply other threads:[~2003-04-21 6:01 UTC|newest]
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