[lkml]   [2002]   [Sep]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: invalidate_inode_pages in 2.5.32/3
On Friday 13 September 2002 01:23, Rik van Riel wrote:
> On Thu, 12 Sep 2002, Andrew Morton wrote:
> > Rik van Riel wrote:
> > > invalidate_page(struct page * page) {
> > That's the bottom-up approach. The top-down (vmtruncate) approach
> > would also work, if the locking is suitable.
> The top-down approach will almost certainly be most efficient when
> invalidating a large chunk of a file (truncate, large file locks)
> while the bottom-up approach is probably more efficient when the
> system invalidates very few pages (small file lock, cluster file
> system mmap() support).

The bottom-up approach is the one we want to use when we'd otherwise
skip a page in invalidate_inode_pages. This is the rare case. On the
face of it, this works out very well. Just have to think about
interactions now - I don't see any, but I haven't really gone hunting

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: 2005-03-22 13:22    [W:0.152 / U:1.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site