[lkml]   [2006]   [Nov]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 2.6.19 5/5] fs: freeze_bdev with semaphore not mutex
On Sun, Nov 12, 2006 at 11:43:05PM +0100, Rafael J. Wysocki wrote:
> On Sunday, 12 November 2006 23:30, David Chinner wrote:
> > And how does freezing them at that point in time guarantee consistent
> > filesystem state?
> If the work queues are frozen, there won't be any fs-related activity _after_
> we create the suspend image.

fs-related activity before or after the suspend image is captured is
not a problem - it's fs-related activity _during_ the suspend that
is an issue here. If we have async I/O completing during the suspend
image capture, we've got problems....


Dave Chinner
Principal Engineer
SGI Australian Software Group
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-11-17 00:27    [W:0.086 / U:10.480 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site