lkml.org 
[lkml]   [2001]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: Getting FS access events
Date
H. Peter Anvin writes:

> This would leave no way (without introducing new interfaces) to write,
> for example, the boot block on an ext2 filesystem. Note that the
> bootblock (defined as the first 1024 bytes) is not actually used by
> the filesystem, although depending on the block size it may share a
> block with the superblock (if blocksize > 1024).

The lack of coherency would screw this up anyway, doesn't it?
You have a block device, soon to be in the page cache, and
a superblock, also soon to be in the page cache. LILO writes to
the block device, while the ext2 driver updates the superblock.
Whatever gets written out last wins, and the other is lost.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:53    [W:1.648 / U:0.388 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site