linux/fs/fscache
David Howells ef778e7ae6 FS-Cache: Provide proper invalidation
Provide a proper invalidation method rather than relying on the netfs retiring
the cookie it has and getting a new one.  The problem with this is that isn't
easy for the netfs to make sure that it has completed/cancelled all its
outstanding storage and retrieval operations on the cookie it is retiring.

Instead, have the cache provide an invalidation method that will cancel or wait
for all currently outstanding operations before invalidating the cache, and
will cause new operations to queue up behind that.  Whilst invalidation is in
progress, some requests will be rejected until the cache can stack a barrier on
the operation queue to cause new operations to be deferred behind it.

Signed-off-by: David Howells <dhowells@redhat.com>
2012-12-20 22:04:07 +00:00
..
cache.c FS-Cache: Add counters for entry/exit to/from cache operation functions 2009-11-19 18:11:08 +00:00
cookie.c FS-Cache: Provide proper invalidation 2012-12-20 22:04:07 +00:00
fsdef.c FS-Cache: Root index definition 2009-04-03 16:42:37 +01:00
histogram.c FS-Cache: Add use of /proc and presentation of statistics 2009-04-03 16:42:37 +01:00
internal.h FS-Cache: Provide proper invalidation 2012-12-20 22:04:07 +00:00
Kconfig fscache: drop references to slow-work 2010-07-22 22:58:58 +02:00
main.c fscache: fix build on !CONFIG_SYSCTL 2010-07-24 11:10:09 +02:00
Makefile FS-Cache: Allow the current state of all objects to be dumped 2009-11-19 18:11:04 +00:00
netfs.c FS-Cache: Add netfs registration 2009-04-03 16:42:38 +01:00
object-list.c fscache: convert object to use workqueue instead of slow-work 2010-07-22 22:58:34 +02:00
object.c FS-Cache: Provide proper invalidation 2012-12-20 22:04:07 +00:00
operation.c FS-Cache: Provide proper invalidation 2012-12-20 22:04:07 +00:00
page.c FS-Cache: Provide proper invalidation 2012-12-20 22:04:07 +00:00
proc.c FS-Cache: Allow the current state of all objects to be dumped 2009-11-19 18:11:04 +00:00
stats.c FS-Cache: Provide proper invalidation 2012-12-20 22:04:07 +00:00