direct-io: Implement generic deferred AIO completions

[linux-2.6-block.git] / include / linux / buffer_head.h

diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 91fa9a94ae9226f1bdb96864f9c768bd2ea3d3b0..d77797a52b7bf01ab367c312e457b1e0771107a8 100644 (file)
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -36,6 +36,7 @@ enum bh_state_bits {
        BH_Quiet,       /* Buffer Error Prinks to be quiet */
        BH_Meta,        /* Buffer contains metadata */
        BH_Prio,        /* Buffer should be submitted with REQ_PRIO */
+       BH_Defer_Completion, /* Defer AIO completion to workqueue */
 
        BH_PrivateStart,/* not a state bit, but the first bit available
                         * for private allocation by other entities
@@ -128,6 +129,7 @@ BUFFER_FNS(Write_EIO, write_io_error)
 BUFFER_FNS(Unwritten, unwritten)
 BUFFER_FNS(Meta, meta)
 BUFFER_FNS(Prio, prio)
+BUFFER_FNS(Defer_Completion, defer_completion)
 
 #define bh_offset(bh)          ((unsigned long)(bh)->b_data & ~PAGE_MASK)