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| author | Matthew D Fleming <mdf@FreeBSD.org> | 2011-05-13 05:27:58 +0000 |
|---|---|---|
| committer | Matthew D Fleming <mdf@FreeBSD.org> | 2011-05-13 05:27:58 +0000 |
| commit | 3d08a76bbc15511d93dec139ce42ceb6a4746ba1 (patch) | |
| tree | adb29eb7ec0b83c1b5131762d1a0bd2a78471e17 /sys/kern/kern_synch.c | |
| parent | c4f9a105902e0e309eee2320ef637c3fbc114694 (diff) | |
| download | src-3d08a76bbc15511d93dec139ce42ceb6a4746ba1.tar.gz src-3d08a76bbc15511d93dec139ce42ceb6a4746ba1.zip | |
Use a name instead of a magic number for kern_yield(9) when the priority
should not change. Fetch the td_user_pri under the thread lock. This
is probably not necessary but a magic number also seems preferable to
knowing the implementation details here.
Requested by: Jason Behmer < jason DOT behmer AT isilon DOT com >
Notes
Notes:
svn path=/head/; revision=221829
Diffstat (limited to 'sys/kern/kern_synch.c')
| -rw-r--r-- | sys/kern/kern_synch.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/kern/kern_synch.c b/sys/kern/kern_synch.c index a3e920d043f2..d3aef7648d55 100644 --- a/sys/kern/kern_synch.c +++ b/sys/kern/kern_synch.c @@ -551,7 +551,7 @@ maybe_yield(void) { if (should_yield()) - kern_yield(curthread->td_user_pri); + kern_yield(PRI_USER); } void @@ -562,6 +562,8 @@ kern_yield(int prio) td = curthread; DROP_GIANT(); thread_lock(td); + if (prio == PRI_USER) + prio = td->td_user_pri; if (prio >= 0) sched_prio(td, prio); mi_switch(SW_VOL | SWT_RELINQUISH, NULL); |