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authorChris Dunlap <[email protected]>2014-02-12 10:30:18 -0800
committerBrian Behlendorf <[email protected]>2014-03-31 16:11:21 -0700
commit8c7aa0cfc47578d1d38f80ecb7c66eed7cde5c59 (patch)
tree3f4f8ec16357c89941b544adcd7009a57d0e4893 /cmd/zpool
parent07917db9908516aa3fd55d39d2c1792aca8bebcd (diff)
Replace zpool_events_next() "block" parm w/ "flags"
zpool_events_next() can be called in blocking mode by specifying a non-zero value for the "block" parameter. However, the design of the ZFS Event Daemon (zed) requires additional functionality from zpool_events_next(). Instead of adding additional arguments to the function, it makes more sense to use flags that can be bitwise-or'd together. This commit replaces the zpool_events_next() int "block" parameter with an unsigned bitwise "flags" parameter. It also defines ZEVENT_NONE to specify the default behavior. Since non-blocking mode can be specified with the existing ZEVENT_NONBLOCK flag, the default behavior becomes blocking mode. This, in effect, inverts the previous use of the "block" parameter. Existing callers of zpool_events_next() have been modified to check for the ZEVENT_NONBLOCK flag. Signed-off-by: Chris Dunlap <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #2
Diffstat (limited to 'cmd/zpool')
-rw-r--r--cmd/zpool/zpool_main.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c
index 4254f9b4d..cc13e3739 100644
--- a/cmd/zpool/zpool_main.c
+++ b/cmd/zpool/zpool_main.c
@@ -49,6 +49,7 @@
#include <sys/stat.h>
#include <sys/fm/util.h>
#include <sys/fm/protocol.h>
+#include <sys/zfs_ioctl.h>
#include <libzfs.h>
@@ -5465,7 +5466,7 @@ zpool_do_events_next(ev_opts_t *opts)
while (1) {
ret = zpool_events_next(g_zfs, &nvl, &dropped,
- !!opts->follow, zevent_fd);
+ (opts->follow ? ZEVENT_NONE : ZEVENT_NONBLOCK), zevent_fd);
if (ret || nvl == NULL)
break;