Date: Sat, 27 Sep 1997 06:40:22 -0700 (PDT) From: KATO Takenori <kato@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: cvs commit: src/sys/dev/vn vn.c src/sys/gnu/ext2fs ext2_extern.h ext2_readwrite.c ext2_vfsops.c ext2_vnops.c src/sys/isofs/cd9660 cd9660_vfsops.c cd9660_vnops.c src/sys/kern kern_conf.c vfs_syscalls.c src/sys/miscfs/specfs spec_vnops.c ... Message-ID: <199709271340.GAA29012@freefall.freebsd.org>
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kato 1997/09/27 06:40:22 PDT
Modified files:
sys/dev/vn vn.c
sys/gnu/ext2fs ext2_extern.h ext2_readwrite.c
ext2_vfsops.c ext2_vnops.c
sys/isofs/cd9660 cd9660_vfsops.c cd9660_vnops.c
sys/kern kern_conf.c vfs_syscalls.c
sys/miscfs/specfs spec_vnops.c
sys/miscfs/union union_vfsops.c
sys/sys conf.h mount.h
sys/ufs/ffs ffs_extern.h ffs_vfsops.c ffs_vnops.c
sys/ufs/ufs ufs_readwrite.c
Log:
Clustered read and write are switched at mount-option level.
1. Clustered I/O is switched by the MNT_NOCLUSTERR and MNT_NOCLUSTERW
bits of the mnt_flag. The sysctl variables, vfs.foo.doclusterread
and vfs.foo.doclusterwrite are deleted. Only mount option can
control clustered I/O from userland.
2. When foofs_mount mounts block device, foofs_mount checks D_CLUSTERR
and D_CLUSTERW bits of the d_flags member in the block device switch
table. If D_NOCLUSTERR / D_NOCLUSTERW are set, MNT_NOCLUSTERR /
MNT_NOCLUSTERW bits will be set. In this case, MNT_NOCLUSTERR and
MNT_NOCLUSTERW cannot be cleared from userland.
3. Vnode driver disables both clustered read and write.
4. Union filesystem disables clutered write.
Reviewed by: bde
Revision Changes Path
1.50 +3 -3 src/sys/dev/vn/vn.c
1.15 +0 -13 src/sys/gnu/ext2fs/ext2_extern.h
1.10 +2 -2 src/sys/gnu/ext2fs/ext2_readwrite.c
1.17 +16 -2 src/sys/gnu/ext2fs/ext2_vfsops.c
1.16 +0 -11 src/sys/gnu/ext2fs/ext2_vnops.c
1.29 +13 -5 src/sys/isofs/cd9660/cd9660_vfsops.c
1.40 +2 -18 src/sys/isofs/cd9660/cd9660_vnops.c
1.22 +5 -3 src/sys/kern/kern_conf.c
1.74 +4 -3 src/sys/kern/vfs_syscalls.c
1.43 +7 -4 src/sys/miscfs/specfs/spec_vnops.c
1.20 +6 -1 src/sys/miscfs/union/union_vfsops.c
1.36 +11 -2 src/sys/sys/conf.h
1.47 +7 -4 src/sys/sys/mount.h
1.17 +3 -5 src/sys/ufs/ffs/ffs_extern.h
1.56 +17 -4 src/sys/ufs/ffs/ffs_vfsops.c
1.30 +1 -11 src/sys/ufs/ffs/ffs_vnops.c
1.31 +3 -3 src/sys/ufs/ufs/ufs_readwrite.c
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