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Provide a version of FILE_UNUSE() for cases where we already hold the 

file's lock.
This commit is contained in:
pk 2004-05-16 17:48:18 +00:00
parent df674b2ca1
commit b0500d6286
1 changed files with 6 additions and 3 deletions
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7
sys/sys/file.h
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@ -1,4 +1,4 @@
/* $NetBSD: file.h,v 1.49 2004/04/25 16:42:43 simonb Exp $ */
/* $NetBSD: file.h,v 1.50 2004/05/16 17:48:18 pk Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1993
@ -123,8 +123,9 @@ do { \
simple_unlock(&(fp)->f_slock); \
} while (/* CONSTCOND */ 0)
#define FILE_UNUSE(fp, p) \
#define FILE_UNUSE_WLOCK(fp, p, havelock) \
do { \
if (!(havelock)) \
simple_lock(&(fp)->f_slock); \
if ((fp)->f_iflags & FIF_WANTCLOSE) { \
simple_unlock(&(fp)->f_slock); \
@ -137,6 +138,8 @@ do { \
} \
simple_unlock(&(fp)->f_slock); \
} while (/* CONSTCOND */ 0)
#define FILE_UNUSE(fp, p) FILE_UNUSE_WLOCK(fp, p, 0)
#define FILE_UNUSE_HAVELOCK(fp, p) FILE_UNUSE_WLOCK(fp, p, 1)
/*
* Flags for fo_read and fo_write.