Date: Mon, 20 Jan 2003 20:05:49 -0800 (PST) From: Jeffrey Hsu <hsu@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_event.c Message-ID: <200301210405.h0L45nnX015100@repoman.freebsd.org>
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hsu 2003/01/20 20:05:49 PST
Modified files:
sys/kern kern_event.c
Log:
Rewrite the SMP filedesc locking in knote_attach() in order to
1. eliminate unnecessary loop which frees and re-allocates
the just allocated array
2. eliminate the newsize recomputation
3. eliminate unnecessary unlock and relock around free
4. correctly match the free with the malloc into M_KQUEUE instead of M_TEMP
5. eliminate conditional assignment of oldlist, which is equivalent to a
simple assignment
6. eliminate the oldlist temporary variable completely
Reviewed by: jhb
Revision Changes Path
1.53 +11 -23 src/sys/kern/kern_event.c
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