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fm: pass io_flags through events & zed as uint64_t 

In 4938d01db (#14086) zio_flag_t was converted from an enum (generally
signed 32-bit) to a uint64_t. The corresponding change wasn't made to
the error reporting subsystem, limiting the error flags being delivered
to zed to 32 bits. This bumps the whole pipeline to use uint64s.

A tiny bit of compatibility is added for newer zed working agsinst an
older kernel module, because its easy to do and misdetecting
scrub/resilver errors and taking action is potentially dangerous. Making
it work for new kernel modules against older zed seems to be far more
invasive for far less benefit, so I have not.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #16469
This commit is contained in:
Rob Norris 2024-08-27 10:39:13 +10:00 committed by GitHub
parent 73866cf346
commit 50b32cb925
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GPG Key ID: B5690EEEBB952194
2 changed files with 13 additions and 4 deletions
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15
cmd/zed/agents/zfs_diagnosis.c
View File

@ -844,7 +844,6 @@ zfs_fm_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
const char *failmode = NULL;
boolean_t checkremove = B_FALSE;
uint32_t pri = 0;
int32_t flags = 0;
/*
* If this is a checksum or I/O error, then toss it into the
@ -922,18 +921,28 @@ zfs_fm_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
}
} else if (fmd_nvl_class_match(hdl, nvl,
ZFS_MAKE_EREPORT(FM_EREPORT_ZFS_CHECKSUM))) {
uint64_t flags = 0;
int32_t flags32 = 0;
/*
* We ignore ereports for checksum errors generated by
* scrub/resilver I/O to avoid potentially further
* degrading the pool while it's being repaired.
*
* Note that FM_EREPORT_PAYLOAD_ZFS_ZIO_FLAGS used to
* be int32. To allow newer zed to work on older
* kernels, if we don't find the flags, we look for
* the older ones too.
*/
if (((nvlist_lookup_uint32(nvl,
FM_EREPORT_PAYLOAD_ZFS_ZIO_PRIORITY, &pri) == 0) &&
(pri == ZIO_PRIORITY_SCRUB ||
pri == ZIO_PRIORITY_REBUILD)) ||
((nvlist_lookup_int32(nvl,
((nvlist_lookup_uint64(nvl,
FM_EREPORT_PAYLOAD_ZFS_ZIO_FLAGS, &flags) == 0) &&
(flags & (ZIO_FLAG_SCRUB | ZIO_FLAG_RESILVER)))) {
(flags & (ZIO_FLAG_SCRUB | ZIO_FLAG_RESILVER))) ||
((nvlist_lookup_int32(nvl,
FM_EREPORT_PAYLOAD_ZFS_ZIO_FLAGS, &flags32) == 0) &&
(flags32 & (ZIO_FLAG_SCRUB | ZIO_FLAG_RESILVER)))) {
fmd_hdl_debug(hdl, "ignoring '%s' for "
"scrub/resilver I/O", class);
return;

2
module/zfs/zfs_fm.c
View File

@ -645,7 +645,7 @@ zfs_ereport_start(nvlist_t **ereport_out, nvlist_t **detector_out,
fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_ERR,
DATA_TYPE_INT32, zio->io_error, NULL);
fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_FLAGS,
DATA_TYPE_INT32, zio->io_flags, NULL);
DATA_TYPE_UINT64, zio->io_flags, NULL);
fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_STAGE,
DATA_TYPE_UINT32, zio->io_stage, NULL);
fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_PIPELINE,