[LU-14350] Only use wake_up_all() when necessary Created: 21/Jan/21 Updated: 22/Mar/22 Resolved: 22/Mar/22 |
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| Status: | Resolved |
| Project: | Lustre |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Improvement | Priority: | Minor |
| Reporter: | Neil Brown | Assignee: | WC Triage |
| Resolution: | Duplicate | Votes: | 0 |
| Labels: | None | ||
| Rank (Obsolete): | 9223372036854775807 |
| Description |
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wake_up_all() is only needed when there are threads doing an exclusive wait. wake_up() will wake up all non-exclusive threads, and at most one exclusive thread. When non-exclusive waits are used, it is sufficient and preferred to use wake_up() to wake them up. wake_up_all() should be reserved for those cases where threads are waiting exclusively, and they all want to be woken up. Keeping it for the purpose only improve code readability.
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| Comments |
| Comment by Peter Jones [ 22/Mar/22 ] |
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Seems to be duplicate of LU-14351 |