Use atomic_t instead of bool as cell->cancelled #270
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When cache cells are fulfilled, injection work is queued. Before cells are injected, they may be cancelled by the foreground path. Therefore, atomic type should be used. Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
A cache cell is reserved only when it is cache-miss (and the bio is 4KB large) and if there were some writes on the block, it is cancelled. Therefore, we can't find any valid cache cell on cache-hit. Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
Signed-off-by: Akira Hayakawa <ruby.wktk@gmail.com>
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When cache cells are fulfilled, injection work is queued. Before cells are injected, they may be cancelled by the foreground path. Therefore, atomic type should be used.