David Howells da9803bc88 FS-Cache: Add interface to check consistency of a cached object ... Extend the fscache netfs API so that the netfs can ask as to whether a cache object is up to date with respect to its corresponding netfs object: int fscache_check_consistency(struct fscache_cookie *cookie) This will call back to the netfs to check whether the auxiliary data associated with a cookie is correct. It returns 0 if it is and -ESTALE if it isn't; it may also return -ENOMEM and -ERESTARTSYS. The backends now have to implement a mandatory operation pointer: int (*check_consistency)(struct fscache_object *object) that corresponds to the above API call. FS-Cache takes care of pinning the object and the cookie in memory and managing this call with respect to the object state. Original-author: Hongyi Jia <jiayisuse@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> cc: Hongyi Jia <jiayisuse@gmail.com> cc: Milosz Tanski <milosz@adfin.com>		2013-09-06 09:17:30 +01:00
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backend-api.txt	FS-Cache: Add interface to check consistency of a cached object	2013-09-06 09:17:30 +01:00
cachefiles.txt
fscache.txt	fscache: convert object to use workqueue instead of slow-work	2010-07-22 22:58:34 +02:00
netfs-api.txt	FS-Cache: Add interface to check consistency of a cached object	2013-09-06 09:17:30 +01:00
object.txt	FS-Cache: Provide proper invalidation	2012-12-20 22:04:07 +00:00
operations.txt	FS-Cache: Fix operation state management and accounting	2012-12-20 21:58:26 +00:00