10 Dec, 2006
1 commit
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Signed-off-by: David S. Miller
30 Oct, 2005
1 commit
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Add sem_is_read/write_locked functions to the read/write semaphores, along the
same lines of the *_is_locked spinlock functions. The swap token tuning patch
uses sem_is_read_locked; sem_is_write_locked is added for completeness.Signed-off-by: Rik van Riel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jul, 2005
1 commit
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rwsem_atomic_update and rwsem_atomic_add can be implemented
straightly using atomic_*() routines.Also, rwsem_cmpxchgw() is totally unused, kill it.
Signed-off-by: David S. Miller
28 Jun, 2005
1 commit
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In particular, avoid membar instructions in the delay
slot of a jmpl instruction.UltraSPARC-I, II, IIi, and IIe have a bug, documented in
the UltraSPARC-IIi User's Manual, Appendix K, Erratum 51The long and short of it is that if the IMU unit misses
on a branch or jmpl, and there is a store buffer synchronizing
membar in the delay slot, the chip can stop fetching instructions.If interrupts are enabled or some other trap is enabled, the
chip will unwedge itself, but performance will suffer.We already had a workaround for this bug in a few spots, but
it's better to have the entire tree sanitized for this rule.Signed-off-by: David S. Miller
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
