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From: David Woodhouse <dwmw2@infradead.org>
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To: "??" <kevin@gv.com.tw>
Cc: linux-mtd@lists.infradead.org
Subject: Re: will jffs2 write to device when doing "read-only" operation like "ls"? 
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Date: Thu, 08 Aug 2002 08:17:46 +0100
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kevin@gv.com.tw said:
> will jffs2 write to device when doing "read-only" operation like "ls"?
> for example, if you do a "ls -lR" then a fs like ext2/minix will write
> stuff to block device (because of put_inode operation),thus might
> reduce life of nand flash....... 

Normal file systems write because they have to update the 'atime' (access 
time) field whenever an inode is read. Very few applications actually care 
about a correct atime, and JFFS2 does not implement atime.

--
dwmw2