From: "leeyang" <leeyang@ycig.com>
To: <linux-mtd@lists.infradead.org>
Subject: mmap on jffs2
Date: Sun, 20 Apr 2003 22:00:51 +0800 [thread overview]
Message-ID: <001301c30745$438c1e60$0365a8c0@leeyang> (raw)
I am using jffs2 on a ppc860 system(amd29lv160).
Things seems ok,but when I am trying mmap.
I want to mmap a file in flash,so i can treat
the file like some records.
I mean operation like
fd = open("/usr/dat/sot.dat",O_RDWR,FILEMODE);
ptr1=mmap(NULL,filesize,PROT_READ|PROT_WRITE,
MAP_SHARED,fd,0);
fd returns 3 and it is ok,however ptr1 returns -1.
I checked the errno it said invalid argument.
I have to say arguments "filesize" above is not
aligment to any requirements,just the real file
size?Does it matter?
The same procedure can done on common ext2
so i wonder jffs2 implement all the features like
ext2?
leeyang
next reply other threads:[~2003-04-20 14:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-20 14:00 leeyang [this message]
2003-04-22 9:33 ` mmap on jffs2 Jörn Engel
2003-04-23 7:30 ` David Woodhouse
-- strict thread matches above, loose matches on Subject: below --
2004-07-21 18:23 dibacco
2004-07-21 12:52 ` Carlos Manuel Duclos Vergara
2004-07-21 18:37 ` David Woodhouse
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