Hi Linux kernel scsi experts,
I would appreciate some information from you or dm-devel on the following:
I am wondering how to pass and support REQ_FAILFAST in scsi_execute_async
function in latest kernel. In sync mode (scsi_execute), caller can pass this
as flag parameter, but how this is done in case of scsi_execute_async?
Thanks.
Dave
Note: the comment below is not accurate in kernel code...
/**
* scsi_execute_async - insert request
* @sdev: scsi device
* @cmd: scsi command
* @cmd_len: length of scsi cdb
* @data_direction: data direction
* @buffer: data buffer (this can be a kernel buffer or scatterlist)
* @bufflen: len of buffer
* @use_sg: if buffer is a scatterlist this is the number of elements
* @timeout: request timeout in seconds
* @retries: number of times to retry request
* @flags: or into request flags
**/
int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd,
int cmd_len, int data_direction, void *buffer,
unsigned bufflen,
int use_sg, int timeout, int retries, void *privdata,
void (*done)(void *, char *, int, int), gfp_t gfp)
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