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authorKiran Kumar Modukuri <kiran.modukuri@gmail.com>2018-07-25 15:31:20 +0200
committerDavid Howells <dhowells@redhat.com>2018-07-25 15:31:20 +0200
commitd0eb06afe712b7b103b6361f40a9a0c638524669 (patch)
tree584436c22f6df0a2e686065cca74de9230c42715 /fs
parentmm: teach dump_page() to correctly output poisoned struct pages (diff)
downloadlinux-d0eb06afe712b7b103b6361f40a9a0c638524669.tar.xz
linux-d0eb06afe712b7b103b6361f40a9a0c638524669.zip
fscache: Allow cancelled operations to be enqueued
Alter the state-check assertion in fscache_enqueue_operation() to allow cancelled operations to be given processing time so they can be cleaned up. Also fix a debugging statement that was requiring such operations to have an object assigned. Fixes: 9ae326a69004 ("CacheFiles: A cache that backs onto a mounted filesystem") Reported-by: Kiran Kumar Modukuri <kiran.modukuri@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/fscache/operation.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index e30c5975ea58..8d265790374c 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -70,7 +70,8 @@ void fscache_enqueue_operation(struct fscache_operation *op)
ASSERT(op->processor != NULL);
ASSERT(fscache_object_is_available(op->object));
ASSERTCMP(atomic_read(&op->usage), >, 0);
- ASSERTCMP(op->state, ==, FSCACHE_OP_ST_IN_PROGRESS);
+ ASSERTIFCMP(op->state != FSCACHE_OP_ST_IN_PROGRESS,
+ op->state, ==, FSCACHE_OP_ST_CANCELLED);
fscache_stat(&fscache_n_op_enqueue);
switch (op->flags & FSCACHE_OP_TYPE) {
@@ -499,7 +500,8 @@ void fscache_put_operation(struct fscache_operation *op)
struct fscache_cache *cache;
_enter("{OBJ%x OP%x,%d}",
- op->object->debug_id, op->debug_id, atomic_read(&op->usage));
+ op->object ? op->object->debug_id : 0,
+ op->debug_id, atomic_read(&op->usage));
ASSERTCMP(atomic_read(&op->usage), >, 0);