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| author | Attilio Rao <attilio@FreeBSD.org> | 2007-05-29 19:34:32 +0000 |
|---|---|---|
| committer | Attilio Rao <attilio@FreeBSD.org> | 2007-05-29 19:34:32 +0000 |
| commit | acf840c4bda2466fdc7d001d3c664f97572130e3 (patch) | |
| tree | 2373876efc7dbb5fe5091c1e3f67cf38a5f35ea5 /sys/kern | |
| parent | a99f0a465391f4259d11499ad41a847a0be98f0f (diff) | |
| download | src-acf840c4bda2466fdc7d001d3c664f97572130e3.tar.gz src-acf840c4bda2466fdc7d001d3c664f97572130e3.zip | |
Add a small fix for lock profiling in sx locks.
"0" cannot be a correct value since when the function is entered at least
one shared holder must be present and since we want the last one "1" is
the correct value.
Note that lock_profiling for sx locks is far from being perfect.
Expect further fixes for that.
Approved by: jeff (mentor)
Notes
Notes:
svn path=/head/; revision=170113
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_sx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/kern_sx.c b/sys/kern/kern_sx.c index ea7d03641cb3..2a25fdcbe0fd 100644 --- a/sys/kern/kern_sx.c +++ b/sys/kern/kern_sx.c @@ -277,7 +277,7 @@ _sx_sunlock(struct sx *sx, const char *file, int line) curthread->td_locks--; WITNESS_UNLOCK(&sx->lock_object, 0, file, line); LOCK_LOG_LOCK("SUNLOCK", &sx->lock_object, 0, 0, file, line); - if (SX_SHARERS(sx->sx_lock) == 0) + if (SX_SHARERS(sx->sx_lock) == 1) lock_profile_release_lock(&sx->lock_object); __sx_sunlock(sx, file, line); } |