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raw-posix: drop raw_get_aio_fd() since it is no longer used

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virtio-blk data-plane now uses the QEMU block layer for I/O.  We do not
need raw_get_aio_fd() anymore.  It was a layering violation anyway, so
let's get rid of it.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2014-05-08 16:34:58 +02:00
parent 8d242f0ed5
commit 76ef2cf549
2 changed files with 0 additions and 43 deletions
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34
block/raw-posix.c
View File

@ -2331,40 +2331,6 @@ static BlockDriver bdrv_host_cdrom = {
};
#endif /* __FreeBSD__ */
#ifdef CONFIG_LINUX_AIO
/**
* Return the file descriptor for Linux AIO
*
* This function is a layering violation and should be removed when it becomes
* possible to call the block layer outside the global mutex. It allows the
* caller to hijack the file descriptor so I/O can be performed outside the
* block layer.
*/
int raw_get_aio_fd(BlockDriverState *bs)
{
BDRVRawState *s;
if (!bs->drv) {
return -ENOMEDIUM;
}
if (bs->drv == bdrv_find_format("raw")) {
bs = bs->file;
}
/* raw-posix has several protocols so just check for raw_aio_readv */
if (bs->drv->bdrv_aio_readv != raw_aio_readv) {
return -ENOTSUP;
}
s = bs->opaque;
if (!s->use_aio) {
return -ENOTSUP;
}
return s->fd;
}
#endif /* CONFIG_LINUX_AIO */
static void bdrv_file_init(void)
{
/*

9
include/block/block.h
View File

@ -481,15 +481,6 @@ void bdrv_op_block_all(BlockDriverState *bs, Error *reason);
void bdrv_op_unblock_all(BlockDriverState *bs, Error *reason);
bool bdrv_op_blocker_is_empty(BlockDriverState *bs);
#ifdef CONFIG_LINUX_AIO
int raw_get_aio_fd(BlockDriverState *bs);
#else
static inline int raw_get_aio_fd(BlockDriverState *bs)
{
return -ENOTSUP;
}
#endif
enum BlockAcctType {
BDRV_ACCT_READ,
BDRV_ACCT_WRITE,