| created | 2025-02-08T00:37:27Z |
|---|---|
| begin | 2025-01-29T15:01:28Z |
| end | 2025-01-29T15:10:09Z |
| path | src/sys |
| commits | 1 |
| date | 2025-01-29T15:10:09Z | |||
|---|---|---|---|---|
| author | mpi | |||
| files | src/sys/kern/kern_rwlock.c | log | diff | annotate |
| src/sys/sys/rwlock.h | log | diff | annotate | |
| message |
Simple implementation to upgrade a shared lock into an exclusive one. This is required by upcoming changes to run the UVM fault handler in parallel. Only uncontended locks are allowed to be upgraded, sleeping is not handled. In other words the new RW_UPGRADE flag requires RW_NOSLEEP. From dlg@, ok claudio@ |
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