Date: Wed, 18 Jun 2003 21:10:56 -0700 (PDT) From: Don Lewis <truckman@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern vfs_syscalls.c Message-ID: <200306190410.h5J4AuoR064990@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
truckman 2003/06/18 21:10:56 PDT
FreeBSD src repository
Modified files:
sys/kern vfs_syscalls.c
Log:
FILE_LOCK() uses a pool mutex, as does the vnode v_vnlock. Since pool
mutexes are supposed to only be used as leaf mutexes, and what appear
to be separate pool mutexes could be aliased together, it is bad idea
for a thread to attempt to hold two pool mutexes at the same time.
Slightly rearrange the code in kern_open() so that FILE_UNLOCK() is
called before calling VOP_GETVOBJECT(), which will grab the v_vnlock
mutex.
Revision Changes Path
1.320 +5 -5 src/sys/kern/vfs_syscalls.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200306190410.h5J4AuoR064990>