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authorDavid Howells <dhowells@redhat.com>2009-11-19 21:11:45 +0300
committerDavid Howells <dhowells@redhat.com>2009-11-19 21:11:45 +0300
commit60d543ca724be155c2b6166e36a00c80b21bd810 (patch)
tree90ec6edd77ddb7666dbf7069aa2e001f155cea49 /include/linux/fscache-cache.h
parentd461d26dde901b0523c46b0317e7fccf574a3933 (diff)
downloadlinux-60d543ca724be155c2b6166e36a00c80b21bd810.tar.xz
FS-Cache: Start processing an object's operations on that object's death
Start processing an object's operations when that object moves into the DYING state as the object cannot be destroyed until all its outstanding operations have completed. Furthermore, make sure that read and allocation operations handle being woken up on a dead object. Such events are recorded in the Allocs.abt and Retrvls.abt statistics as viewable through /proc/fs/fscache/stats. The code for waiting for object activation for the read and allocation operations is also extracted into its own function as it is much the same in all cases, differing only in the stats incremented. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/linux/fscache-cache.h')
-rw-r--r--include/linux/fscache-cache.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 4750d5fb419f..907bb56c5888 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -404,6 +404,10 @@ extern const char *fscache_object_states[];
(obj)->state >= FSCACHE_OBJECT_AVAILABLE && \
(obj)->state < FSCACHE_OBJECT_DYING)
+#define fscache_object_is_dead(obj) \
+ (test_bit(FSCACHE_IOERROR, &(obj)->cache->flags) && \
+ (obj)->state >= FSCACHE_OBJECT_DYING)
+
extern const struct slow_work_ops fscache_object_slow_work_ops;
/**