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linux-2.6/fs/fscache
David Howells 6897e3df8f FS-Cache: The object-available state can't rely on the cookie to be available
The object-available state in the object processing state machine (as
processed by fscache_object_available()) can't rely on the cookie to be
available because the FSCACHE_COOKIE_CREATING bit may have been cleared by
fscache_obtained_object() prior to the object being put into the
FSCACHE_OBJECT_AVAILABLE state.

Clearing the FSCACHE_COOKIE_CREATING bit on a cookie permits
__fscache_relinquish_cookie() to proceed and detach the cookie from the
object.

To deal with this, we don't dereference object->cookie in
fscache_object_available() if the object has already been detached.

In addition, a couple of assertions are added into fscache_drop_object() to
make sure the object is unbound from the cookie before it gets there.

Signed-off-by: David Howells <dhowells@redhat.com>
2009-11-19 18:11:22 +00:00
..
Kconfig FS-Cache: Allow the current state of all objects to be dumped 2009-11-19 18:11:04 +00:00
Makefile FS-Cache: Allow the current state of all objects to be dumped 2009-11-19 18:11:04 +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: Use radix tree preload correctly in tracking of pages to be stored 2009-11-19 18:11:14 +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: Permit cache retrieval ops to be interrupted in the initial wait phase 2009-11-19 18:11:19 +00:00
main.c SLOW_WORK: Wait for outstanding work items belonging to a module to clear 2009-11-19 18:10:23 +00:00
netfs.c FS-Cache: Add netfs registration 2009-04-03 16:42:38 +01:00
object-list.c FS-Cache: Allow the current state of all objects to be dumped 2009-11-19 18:11:04 +00:00
object.c FS-Cache: The object-available state can't rely on the cookie to be available 2009-11-19 18:11:22 +00:00
operation.c FS-Cache: Permit cache retrieval ops to be interrupted in the initial wait phase 2009-11-19 18:11:19 +00:00
page.c FS-Cache: Permit cache retrieval ops to be interrupted in the initial wait phase 2009-11-19 18:11:19 +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: Permit cache retrieval ops to be interrupted in the initial wait phase 2009-11-19 18:11:19 +00:00