linux-sg2042/fs/jbd
Mel Gorman e12ba74d8f Group short-lived and reclaimable kernel allocations
This patch marks a number of allocations that are either short-lived such as
network buffers or are reclaimable such as inode allocations.  When something
like updatedb is called, long-lived and unmovable kernel allocations tend to
be spread throughout the address space which increases fragmentation.

This patch groups these allocations together as much as possible by adding a
new MIGRATE_TYPE.  The MIGRATE_RECLAIMABLE type is for allocations that can be
reclaimed on demand, but not moved.  i.e.  they can be migrated by deleting
them and re-reading the information from elsewhere.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:43:00 -07:00
..
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
checkpoint.c fix file specification in comments 2007-05-09 08:58:16 +02:00
commit.c jbd commit: fix transaction dropping 2007-07-16 09:05:34 -07:00
journal.c Group short-lived and reclaimable kernel allocations 2007-10-16 09:43:00 -07:00
recovery.c fix file specification in comments 2007-05-09 08:58:16 +02:00
revoke.c Group short-lived and reclaimable kernel allocations 2007-10-16 09:43:00 -07:00
transaction.c lockdep: annotate journal_start() 2007-10-11 22:11:12 +02:00