lkml.org 
[lkml]   [2012]   [Oct]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: fs: page cache wrongly left invalidated after revalidate_disk
Date
MITSUNARI Shigeo <herumi@nifty.com> writes:

> Hi,
>
> We found that bdev->bd_invalidated was left set once revalidate_disk()
> is called, which results in page cache flush every time that device
> is open.
>
> Specifically, we found this problem in MD block device. Once we
> resize a MD device, mdadm --monitor periodically flush all page cache
> for that device every 60 or 1000 seconds when it opens the device.
>
> This bug lies since at least 3.2.0 till the latest kernel(3.6.2).
> Patch is attached.
>
> Anyone please review this? Thanks in advance.

rescan_partitions (called in the bdev open path) should reset
bd_invalidated. I think you need to dig into why that isn't happening.

Cheers,
Jeff


\
 
 \ /
  Last update: 2012-10-24 16:41    [W:0.037 / U:0.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site