diff options
| author | dh142964 <David.Hollister@Sun.COM> | 2009-09-30 13:40:27 -0600 |
|---|---|---|
| committer | dh142964 <David.Hollister@Sun.COM> | 2009-09-30 13:40:27 -0600 |
| commit | 4c06356b0f0fffb4fc1b6eccc8e5d8e2254a84d6 (patch) | |
| tree | 17ba947a21901975bb128b8c535cb0575d4c9a4a /usr/src/uts/common/os/callout.c | |
| parent | 7b57f05abb8796d3c91c8d4d4c75dcafb5af6b69 (diff) | |
| download | illumos-joyent-4c06356b0f0fffb4fc1b6eccc8e5d8e2254a84d6.tar.gz | |
PSARC 2008/672 thebe SAS/SATA driver
PSARC 2008/755 ddi_ssoft_state(9F) and ddi_isoft_state(9F)
PSARC 2008/764 Cfgadm SCSI-Plugin MPxIO Support
PSARC 2009/125 scsi_device property interfaces
6726110 pmcs driver (driver for thebe)
6726867 SCSAv3
Diffstat (limited to 'usr/src/uts/common/os/callout.c')
| -rw-r--r-- | usr/src/uts/common/os/callout.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/usr/src/uts/common/os/callout.c b/usr/src/uts/common/os/callout.c index ed1ae9aa83..f671d2250a 100644 --- a/usr/src/uts/common/os/callout.c +++ b/usr/src/uts/common/os/callout.c @@ -55,10 +55,10 @@ static callout_cache_t *callout_caches; /* linked list of caches */ static callout_table_t *callout_table; /* global callout table array */ /* - * We run normal callouts from PIL 10. This means that no other handler that - * runs at PIL 10 is allowed to wait for normal callouts directly or indirectly - * as it will cause a deadlock. This has always been an unwritten rule. - * We are making it explicit here. + * We run 'realtime' callouts at PIL 1 (CY_LOW_LEVEL). For 'normal' + * callouts, from PIL 10 (CY_LOCK_LEVEL) we dispatch the callout, + * via taskq, to a thread that executes at PIL 0 - so we end up running + * 'normal' callouts at PIL 0. */ static volatile int callout_realtime_level = CY_LOW_LEVEL; static volatile int callout_normal_level = CY_LOCK_LEVEL; |