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| author | jhb <jhb@FreeBSD.org> | 2003-05-05 21:27:29 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2003-05-05 21:27:29 +0000 |
| commit | ad3e75f51edb275ecaa78bf716f7148a4f647f6d (patch) | |
| tree | 042e9c27a42dd47921d3c6f6956b257c8a103cb8 /sys/kern/kern_subr.c | |
| parent | 65572963c9840554ee1c2cf0d0af73e81aa28454 (diff) | |
| download | FreeBSD-src-ad3e75f51edb275ecaa78bf716f7148a4f647f6d.zip FreeBSD-src-ad3e75f51edb275ecaa78bf716f7148a4f647f6d.tar.gz | |
Tweak the clearing of TDF_DEADLKTREAT so that we only bother grabbing the
lock and clearing the flag if it was clear when uiomove() was called.
Diffstat (limited to 'sys/kern/kern_subr.c')
| -rw-r--r-- | sys/kern/kern_subr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/kern/kern_subr.c b/sys/kern/kern_subr.c index 9e47e4e..0a3052c 100644 --- a/sys/kern/kern_subr.c +++ b/sys/kern/kern_subr.c @@ -185,9 +185,9 @@ uiomove(void *cp, int n, struct uio *uio) n -= cnt; } out: - if (td) { + if (td && save == 0) { mtx_lock_spin(&sched_lock); - td->td_flags = (td->td_flags & ~TDF_DEADLKTREAT) | save; + td->td_flags &= ~TDF_DEADLKTREAT; mtx_unlock_spin(&sched_lock); } return (error); |
