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cam: Don't permit crashdumps on non-pollable devices.

Description

cam: Don't permit crashdumps on non-pollable devices.

If a disk's SIM doesn't support polling, then it can't be used to
store crashdumps. Leave d_dump NULL in that case so that dumpon(8)
fails gracefully rather than having dumps fail at crash time.

Sponsored by: Chelsio

(cherry picked from commit e07ac3f2fd7336e04178d116033989a6c099fec4)

Details

Provenance
jhbAuthored on Feb 11 2021, 9:51 PM
Parents
R10:444aff36738a: cam: Permit non-pollable sims.
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