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OpenZFS 7277 - zdb should be able to print zfs_dbgmsg's

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Porting notes:
- 'zfs_dbgmsg_print()' reintroduced to userspace.

Authored by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/7277
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/29bdd2f
Closes #5684
This commit is contained in:
George Melikov
2017-01-28 23:16:43 +03:00
committed by Brian Behlendorf
parent a32494d22a
commit fa603f8233
4 changed files with 52 additions and 7 deletions
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module/zfs/zfs_debug.c
+15
View File
@@ -228,6 +228,21 @@ __dprintf(const char *file, const char *func, int line, const char *fmt, ...)
kmem_free(buf, size);
}
#else
void
zfs_dbgmsg_print(const char *tag)
{
zfs_dbgmsg_t *zdm;
(void) printf("ZFS_DBGMSG(%s):\n", tag);
mutex_enter(&zfs_dbgmsgs_lock);
for (zdm = list_head(&zfs_dbgmsgs); zdm;
zdm = list_next(&zfs_dbgmsgs, zdm))
(void) printf("%s\n", zdm->zdm_msg);
mutex_exit(&zfs_dbgmsgs_lock);
}
#endif /* _KERNEL */
#ifdef _KERNEL