Commit 0eb7217e authored by Stefan Hajnoczi's avatar Stefan Hajnoczi Committed by Kevin Wolf
Browse files

block: extract bdrv_setup_io_funcs() 



Move the code to install coroutine and aio emulation function pointers
in a BlockDriver to its own function.

Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent e0c47b6c

block.c

+6 −1
Original line number Diff line number Diff line
@@ -349,7 +349,7 @@ void bdrv_get_full_backing_filename(BlockDriverState *bs, char *dest, size_t sz, 
                                                 dest, sz, errp);

}



void bdrv_register(BlockDriver *bdrv)

void bdrv_setup_io_funcs(BlockDriver *bdrv)

{

    /* Block drivers without coroutine functions need emulation */

    if (!bdrv->bdrv_co_readv) {
@@ -365,6 +365,11 @@ void bdrv_register(BlockDriver *bdrv) 
            bdrv->bdrv_aio_writev = bdrv_aio_writev_em;

        }

    }

}



void bdrv_register(BlockDriver *bdrv)

{

    bdrv_setup_io_funcs(bdrv);



    QLIST_INSERT_HEAD(&bdrv_drivers, bdrv, list);

}

include/block/block_int.h

+8 −0
Original line number Diff line number Diff line
@@ -439,6 +439,14 @@ extern BlockDriver bdrv_file; 
extern BlockDriver bdrv_raw;

extern BlockDriver bdrv_qcow2;



/**

 * bdrv_setup_io_funcs:

 *

 * Prepare a #BlockDriver for I/O request processing by populating

 * unimplemented coroutine and AIO interfaces with generic wrapper functions

 * that fall back to implemented interfaces.

 */

void bdrv_setup_io_funcs(BlockDriver *bdrv);



int get_tmp_filename(char *filename, int size);

BlockDriver *bdrv_probe_all(const uint8_t *buf, int buf_size,