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scst_vdisk: Make fileio_exec_async() easier to read

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This patch does not change any functionality.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@7984 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-02-24 05:27:07 +00:00
parent 1d3c73d422
commit fd495e26eb
1 changed files with 7 additions and 6 deletions
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13
scst/src/dev_handlers/scst_vdisk.c
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@@ -3254,6 +3254,7 @@ static enum compl_status_e fileio_exec_async(struct vdisk_cmd_params *p)
struct iov_iter iter = { };
ssize_t length, total = 0;
struct kvec *kvec;
struct kiocb *iocb = &p->async.iocb;
uint8_t *address;
int dir, ret;
@@ -3295,24 +3296,24 @@ static enum compl_status_e fileio_exec_async(struct vdisk_cmd_params *p)
iov_iter_kvec(&iter, ITER_KVEC | dir, p->async.kvec,
kvec - p->async.kvec, total);
#endif
p->async.iocb = (struct kiocb) {
*iocb = (struct kiocb) {
.ki_pos = p->loff,
.ki_filp = fd,
.ki_complete = fileio_async_complete,
};
if (virt_dev->o_direct_flag)
p->async.iocb.ki_flags |= IOCB_DIRECT;
iocb->ki_flags |= IOCB_DIRECT;
if (dir == WRITE) {
if (virt_dev->wt_flag && !virt_dev->nv_cache)
p->async.iocb.ki_flags |= IOCB_DSYNC;
ret = call_write_iter(fd, &p->async.iocb, &iter);
iocb->ki_flags |= IOCB_DSYNC;
ret = call_write_iter(fd, iocb, &iter);
} else {
ret = call_read_iter(fd, &p->async.iocb, &iter);
ret = call_read_iter(fd, iocb, &iter);
}
if (p->async.kvec != p->async.small_kvec)
kfree(p->async.kvec);
if (ret != -EIOCBQUEUED)
fileio_async_complete(&p->async.iocb, ret, 0);
fileio_async_complete(iocb, ret, 0);
/*
* Return RUNNING_ASYNC even if fileio_async_complete() has been
* called because that function calls cmd->scst_cmd_done().