Date: Fri, 15 Mar 2002 00:03:46 -0800 (PST) From: Alfred Perlstein <alfred@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern kern_descrip.c kern_ktrace.c sys_generic.c sys_socket.c vfs_bio.c vfs_vnops.c Message-ID: <200203150803.g2F83kG58307@freefall.freebsd.org>
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alfred 2002/03/15 00:03:46 PST
Modified files:
sys/kern kern_descrip.c kern_ktrace.c
sys_generic.c sys_socket.c vfs_bio.c
vfs_vnops.c
Log:
Giant pushdown for read/write/pread/pwrite syscalls.
kern/kern_descrip.c:
Aquire Giant in fdrop_locked when file refcount hits zero, this removes
the requirement for the caller to own Giant for the most part.
kern/kern_ktrace.c:
Aquire Giant in ktrgenio, simplifies locking in upper read/write syscalls.
kern/vfs_bio.c:
Aquire Giant in bwillwrite if needed.
kern/sys_generic.c
Giant pushdown, remove Giant for:
read, pread, write and pwrite.
readv and writev aren't done yet because of the possible malloc calls
for iov to uio processing.
kern/sys_socket.c
Grab giant in the socket fo_read/write functions.
kern/vfs_vnops.c
Grab giant in the vnode fo_read/write functions.
Revision Changes Path
1.128 +2 -0 src/sys/kern/kern_descrip.c
1.61 +3 -0 src/sys/kern/kern_ktrace.c
1.94 +0 -8 src/sys/kern/sys_generic.c
1.38 +12 -2 src/sys/kern/sys_socket.c
1.303 +2 -0 src/sys/kern/vfs_bio.c
1.139 +7 -1 src/sys/kern/vfs_vnops.c
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