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Bring over illumos ZFS FMA logic -- phase 1

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This first phase brings over the ZFS SLM module, zfs_mod.c, to handle
auto operations in response to disk events. Disk event monitoring is
provided from libudev and generates the expected payload schema for
zfs_mod. This work leverages the recently added devid and phys_path
strings in the vdev label.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@intel.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #4673
This commit is contained in:
Don Brady
2016-08-31 15:46:58 -06:00
committed by Brian Behlendorf
parent 0b284702b7
commit d02ca37979
20 changed files with 1837 additions and 39 deletions
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cmd/zed/zed_event.c
+43
View File
@@ -24,13 +24,17 @@
#include <sys/zfs_ioctl.h>
#include <time.h>
#include <unistd.h>
#include <sys/fm/fs/zfs.h>
#include "zed.h"
#include "zed_conf.h"
#include "zed_disk_event.h"
#include "zed_exec.h"
#include "zed_file.h"
#include "zed_log.h"
#include "zed_strings.h"
#include "agents/zfs_agents.h"
#define MAXBUF 4096
/*
@@ -50,6 +54,15 @@ zed_event_init(struct zed_conf *zcp)
if (zcp->zevent_fd < 0)
zed_log_die("Failed to open \"%s\": %s",
ZFS_DEV, strerror(errno));
if (zfs_slm_init(zcp->zfs_hdl) != 0)
zed_log_die("Failed to initialize zfs slm");
if (zfs_diagnosis_init(zcp->zfs_hdl) != 0)
zed_log_die("Failed to initialize zfs diagnosis");
if (zfs_retire_init(zcp->zfs_hdl) != 0)
zed_log_die("Failed to initialize zfs retire");
if (zed_disk_event_init() != 0)
zed_log_die("Failed to initialize disk events");
}
/*
@@ -61,6 +74,11 @@ zed_event_fini(struct zed_conf *zcp)
if (!zcp)
zed_log_die("Failed zed_event_fini: %s", strerror(EINVAL));
zed_disk_event_fini();
zfs_retire_fini();
zfs_diagnosis_fini();
zfs_slm_fini();
if (zcp->zevent_fd >= 0) {
if (close(zcp->zevent_fd) < 0)
zed_log_msg(LOG_WARNING, "Failed to close \"%s\": %s",
@@ -624,6 +642,17 @@ _zed_event_add_nvpair(uint64_t eid, zed_strings_t *zsp, nvpair_t *nvp)
_zed_event_add_var(eid, zsp, prefix, name,
(_zed_event_value_is_hex(name) ? "0x%.16llX" : "%llu"),
(u_longlong_t) i64);
/*
* shadow readable strings for vdev state pairs
*/
if (strcmp(name, FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE) == 0 ||
strcmp(name, FM_EREPORT_PAYLOAD_ZFS_VDEV_LASTSTATE) == 0) {
char alt[32];
(void) snprintf(alt, sizeof (alt), "%s_str", name);
_zed_event_add_var(eid, zsp, prefix, alt, "%s",
zpool_state_to_name(i64, VDEV_AUX_NONE));
}
break;
case DATA_TYPE_DOUBLE:
(void) nvpair_value_double(nvp, &d);
@@ -803,6 +832,17 @@ _zed_event_add_time_strings(uint64_t eid, zed_strings_t *zsp, int64_t etime[])
}
}
static void
_zed_internal_event(const char *class, nvlist_t *nvl)
{
/*
* NOTE: only vdev check is handled for now
*/
if (strcmp(class, "sysevent.fs.zfs.vdev_check") == 0) {
(void) zfs_slm_event("EC_zfs", "ESC_ZFS_vdev_check", nvl);
}
}
/*
* Service the next zevent, blocking until one is available.
*/
@@ -853,6 +893,9 @@ zed_event_service(struct zed_conf *zcp)
zed_log_msg(LOG_WARNING,
"Failed to lookup zevent class (eid=%llu)", eid);
} else {
/* let internal modules see this event first */
_zed_internal_event(class, nvl);
zsp = zed_strings_create();
nvp = NULL;