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Commit9c4b55d

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Declare lwlock.c's LWLockAcquireCommon() as a static inline.
68a2e52 has introduced LWLockAcquireCommon() containing theprevious contents of LWLockAcquire() plus added functionality. Thelatter then calls it, just like LWLockAcquireWithVar(). Because themajority of callers don't need the added functionality, declare thecommon code as inline. The compiler then can optimize away the unusedcode. Doing so is also useful when looking at profiles, todifferentiate the users.Backpatch to 9.4, the first branch to contain LWLockAcquireCommon().
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‎src/backend/storage/lmgr/lwlock.c

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -85,8 +85,8 @@ static LWLock *held_lwlocks[MAX_SIMUL_LWLOCKS];
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staticintlock_addin_request=0;
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staticboollock_addin_request_allowed= true;
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88-
staticboolLWLockAcquireCommon(LWLock*l,LWLockModemode,uint64*valptr,
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uint64val);
88+
staticinlineboolLWLockAcquireCommon(LWLock*l,LWLockModemode,
89+
uint64*valptr,uint64val);
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#ifdefLWLOCK_STATS
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typedefstructlwlock_stats_key
@@ -510,7 +510,7 @@ LWLockAcquireWithVar(LWLock *l, uint64 *valptr, uint64 val)
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}
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/* internal function to implement LWLockAcquire and LWLockAcquireWithVar */
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staticbool
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staticinlinebool
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LWLockAcquireCommon(LWLock*l,LWLockModemode,uint64*valptr,uint64val)
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{
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volatileLWLock*lock=l;

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