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author | 2009-04-03 16:42:36 +0100 | |
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committer | 2009-04-03 16:42:36 +0100 | |
commit | 266cf658efcf6ac33541a46740f74f50c79d2b6b (patch) | |
tree | 5c83b0879892d509e598dfd54be3ba3679ecd348 /scripts/bloat-o-meter | |
parent | FS-Cache: Release page->private after failed readahead (diff) | |
download | linux-266cf658efcf6ac33541a46740f74f50c79d2b6b.tar.gz linux-266cf658efcf6ac33541a46740f74f50c79d2b6b.tar.bz2 linux-266cf658efcf6ac33541a46740f74f50c79d2b6b.zip |
FS-Cache: Recruit a page flags for cache management
Recruit a page flag to aid in cache management. The following extra flag is
defined:
(1) PG_fscache (PG_private_2)
The marked page is backed by a local cache and is pinning resources in the
cache driver.
If PG_fscache is set, then things that checked for PG_private will now also
check for that. This includes things like truncation and page invalidation.
The function page_has_private() had been added to make the checks for both
PG_private and PG_private_2 at the same time.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Daire Byrne <Daire.Byrne@framestore.com>
Diffstat (limited to 'scripts/bloat-o-meter')
0 files changed, 0 insertions, 0 deletions