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FS-Cache: Fix cancellation of in-progress operation

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Cancellation of an in-progress operation needs to update the relevant counters
and start any operations that are pending waiting on this one.

Signed-off-by: David Howells <[email protected]>
Reviewed-by: Steve Dickson <[email protected]>
Acked-by: Jeff Layton <[email protected]>
This commit is contained in:
David Howells 2015-02-25 14:07:25 +00:00
commit 73c04a47bf
1 changed files with 7 additions and 0 deletions
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7
fs/fscache/operation.c
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@ -365,6 +365,13 @@ int fscache_cancel_op(struct fscache_operation *op,
wake_up_bit(&op->flags, FSCACHE_OP_WAITING);
ret = 0;
} else if (op->state == FSCACHE_OP_ST_IN_PROGRESS && cancel_in_progress_op) {
ASSERTCMP(object->n_in_progress, >, 0);
if (test_bit(FSCACHE_OP_EXCLUSIVE, &op->flags))
object->n_exclusive--;
object->n_in_progress--;
if (object->n_in_progress == 0)
fscache_start_operations(object);
fscache_stat(&fscache_n_op_cancelled);
if (do_cancel)
do_cancel(op);