diff options
Diffstat (limited to 'lib/libzpool/kernel.c')
| -rw-r--r-- | lib/libzpool/kernel.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/lib/libzpool/kernel.c b/lib/libzpool/kernel.c index db50352c5..325cb3cea 100644 --- a/lib/libzpool/kernel.c +++ b/lib/libzpool/kernel.c @@ -1107,6 +1107,30 @@ umem_out_of_memory(void) return (0); } +static unsigned long +get_spl_hostid(void) +{ + FILE *f; + unsigned long hostid; + + f = fopen("/sys/module/spl/parameters/spl_hostid", "r"); + if (!f) + return (0); + if (fscanf(f, "%lu", &hostid) != 1) + hostid = 0; + fclose(f); + return (hostid & 0xffffffff); +} + +unsigned long +get_system_hostid(void) +{ + unsigned long system_hostid = get_spl_hostid(); + if (system_hostid == 0) + system_hostid = gethostid() & 0xffffffff; + return (system_hostid); +} + void kernel_init(int mode) { @@ -1120,7 +1144,7 @@ kernel_init(int mode) (double)physmem * sysconf(_SC_PAGE_SIZE) / (1ULL << 30)); (void) snprintf(hw_serial, sizeof (hw_serial), "%ld", - (mode & FWRITE) ? gethostid() : 0); + (mode & FWRITE) ? get_system_hostid() : 0); VERIFY((random_fd = open("/dev/random", O_RDONLY)) != -1); VERIFY((urandom_fd = open("/dev/urandom", O_RDONLY)) != -1); |