Merge PR #54690 into main

Merge PR #54690 into main

* refs/pull/54690/head:
	client: handle callback completion if the async I/O failed
	client: make sure the callback is finished when returning ENOTCONN
	client: do not accept zero byte write request
	client: check for negative value of iovcnt
	src/test: test zero bytes async i/o
	src/test: test async I/O with negative iov structures count
	src/test: test async I/O if the client is not mounted
	src/test: test async I/O with read only file
	src/test: test async I/O with a file created with O_PATH

Reviewed-by: Frank S. Filz <ffilzlnx@mindspring.com>
Reviewed-by: Milind Changire <mchangir@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Rishabh Dave <ridave@redhat.com>
Reviewed-by: Matt Benjamin <mbenjami@redhat.com>