A doubt regarding submit_bio()

[Gaurav Mahajan]

Hello all,

I am working on a operation in which I need to assure the order of
bio_end_io() functions.
Consider the scenario,

If I submit two bio requests using submit_bio() function one after
another, then is there any guarantee that the bio_end_io() for the
bios will be invoked in the same order in which I submitted the bios?

Basically I mean to say, would the generic block layer or I/O
scheduler maintain the order of bios submitted to them?

Hoping for some help.

Regards,
Gaurav.