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| author | Jason Evans <jasone@FreeBSD.org> | 2001-08-13 21:25:30 +0000 |
|---|---|---|
| committer | Jason Evans <jasone@FreeBSD.org> | 2001-08-13 21:25:30 +0000 |
| commit | d55229b72ecc97075f1afcd976f8e0c1cd0d662b (patch) | |
| tree | 67194a60468f548a491adff90351cbea4c362c47 /sys/sys/sx.h | |
| parent | 9c347fa6263ae87ab59c560c9a8c6b362001000e (diff) | |
| download | src-d55229b72ecc97075f1afcd976f8e0c1cd0d662b.tar.gz src-d55229b72ecc97075f1afcd976f8e0c1cd0d662b.zip | |
Add sx_try_upgrade() and sx_downgrade().
Submitted by: Alexander Kabaev <ak03@gte.com>
Notes
Notes:
svn path=/head/; revision=81599
Diffstat (limited to 'sys/sys/sx.h')
| -rw-r--r-- | sys/sys/sx.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/sys/sx.h b/sys/sys/sx.h index f123a3f88402..ee6ac736d653 100644 --- a/sys/sys/sx.h +++ b/sys/sys/sx.h @@ -54,6 +54,8 @@ int _sx_try_slock(struct sx *sx, const char *file, int line); int _sx_try_xlock(struct sx *sx, const char *file, int line); void _sx_sunlock(struct sx *sx, const char *file, int line); void _sx_xunlock(struct sx *sx, const char *file, int line); +int _sx_try_upgrade(struct sx *sx, const char *file, int line); +void _sx_downgrade(struct sx *sx, const char *file, int line); #define sx_slock(sx) _sx_slock((sx), __FILE__, __LINE__) #define sx_xlock(sx) _sx_xlock((sx), __FILE__, __LINE__) @@ -61,6 +63,8 @@ void _sx_xunlock(struct sx *sx, const char *file, int line); #define sx_try_xlock(sx) _sx_try_xlock((sx), __FILE__, __LINE__) #define sx_sunlock(sx) _sx_sunlock((sx), __FILE__, __LINE__) #define sx_xunlock(sx) _sx_xunlock((sx), __FILE__, __LINE__) +#define sx_try_upgrade(sx) _sx_try_upgrade((sx), __FILE__, __LINE__) +#define sx_downgrade(sx) _sx_downgrade((sx), __FILE__, __LINE__) #ifdef INVARIANTS /* |