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3742 zfs comments need cleaner, more consistent style
Submitted by:   Will Andrews <willa@spectralogic.com>
Submitted by:   Alan Somers <alans@spectralogic.com>
Reviewed by:    Matthew Ahrens <mahrens@delphix.com>
Reviewed by:    George Wilson <george.wilson@delphix.com>
Reviewed by:    Eric Schrock <eric.schrock@delphix.com>


1317                 freeze_txg = spa_last_synced_txg(spa) + TXG_SIZE;
1318                 spa->spa_freeze_txg = freeze_txg;
1319         }
1320         spa_config_exit(spa, SCL_ALL, FTAG);
1321         if (freeze_txg != 0)
1322                 txg_wait_synced(spa_get_dsl(spa), freeze_txg);
1323 }
1324 
1325 void
1326 zfs_panic_recover(const char *fmt, ...)
1327 {
1328         va_list adx;
1329 
1330         va_start(adx, fmt);
1331         vcmn_err(zfs_recover ? CE_WARN : CE_PANIC, fmt, adx);
1332         va_end(adx);
1333 }
1334 
1335 /*
1336  * This is a stripped-down version of strtoull, suitable only for converting
1337  * lowercase hexidecimal numbers that don't overflow.
1338  */
1339 uint64_t
1340 strtonum(const char *str, char **nptr)
1341 {
1342         uint64_t val = 0;
1343         char c;
1344         int digit;
1345 
1346         while ((c = *str) != '\0') {
1347                 if (c >= '0' && c <= '9')
1348                         digit = c - '0';
1349                 else if (c >= 'a' && c <= 'f')
1350                         digit = 10 + c - 'a';
1351                 else
1352                         break;
1353 
1354                 val *= 16;
1355                 val += digit;
1356 
1357                 str++;




1317                 freeze_txg = spa_last_synced_txg(spa) + TXG_SIZE;
1318                 spa->spa_freeze_txg = freeze_txg;
1319         }
1320         spa_config_exit(spa, SCL_ALL, FTAG);
1321         if (freeze_txg != 0)
1322                 txg_wait_synced(spa_get_dsl(spa), freeze_txg);
1323 }
1324 
1325 void
1326 zfs_panic_recover(const char *fmt, ...)
1327 {
1328         va_list adx;
1329 
1330         va_start(adx, fmt);
1331         vcmn_err(zfs_recover ? CE_WARN : CE_PANIC, fmt, adx);
1332         va_end(adx);
1333 }
1334 
1335 /*
1336  * This is a stripped-down version of strtoull, suitable only for converting
1337  * lowercase hexadecimal numbers that don't overflow.
1338  */
1339 uint64_t
1340 strtonum(const char *str, char **nptr)
1341 {
1342         uint64_t val = 0;
1343         char c;
1344         int digit;
1345 
1346         while ((c = *str) != '\0') {
1347                 if (c >= '0' && c <= '9')
1348                         digit = c - '0';
1349                 else if (c >= 'a' && c <= 'f')
1350                         digit = 10 + c - 'a';
1351                 else
1352                         break;
1353 
1354                 val *= 16;
1355                 val += digit;
1356 
1357                 str++;