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| author | John Baldwin <jhb@FreeBSD.org> | 2021-02-11 21:51:01 +0000 |
|---|---|---|
| committer | John Baldwin <jhb@FreeBSD.org> | 2021-02-11 21:52:18 +0000 |
| commit | e07ac3f2fd7336e04178d116033989a6c099fec4 (patch) | |
| tree | e5bc7982293b31512e953fdc2120baebcc6df5bf /sys/cam/nvme | |
| parent | 447b3557a9cc5f00a301be8404339f21a9a0faa8 (diff) | |
| download | src-e07ac3f2fd7336e04178d116033989a6c099fec4.tar.gz src-e07ac3f2fd7336e04178d116033989a6c099fec4.zip | |
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.
Reviewed by: scottl, mav, imp
MFC after: 2 weeks
Sponsored by: Chelsio
Differential Revision: https://reviews.freebsd.org/D28454
Diffstat (limited to 'sys/cam/nvme')
| -rw-r--r-- | sys/cam/nvme/nvme_da.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/cam/nvme/nvme_da.c b/sys/cam/nvme/nvme_da.c index 8e7f7318ce3b..baeaad182f3a 100644 --- a/sys/cam/nvme/nvme_da.c +++ b/sys/cam/nvme/nvme_da.c @@ -898,7 +898,8 @@ ndaregister(struct cam_periph *periph, void *arg) disk->d_strategy = ndastrategy; disk->d_ioctl = ndaioctl; disk->d_getattr = ndagetattr; - disk->d_dump = ndadump; + if (cam_sim_pollable(periph->sim)) + disk->d_dump = ndadump; disk->d_gone = ndadiskgonecb; disk->d_name = "nda"; disk->d_drv1 = periph; |