cluster/gfs-kernel/src/gfs diaper.c gfs.h inco ...

cluster/gfs-kernel/src/gfs diaper.c gfs.h inco ...

[wcheng]

CVSROOT:	/cvs/cluster
Module name:	cluster
Branch: 	RHEL4
Changes by:	wcheng@sourceware.org	2007-08-28 14:58:48

Modified files:
	gfs-kernel/src/gfs: diaper.c gfs.h incore.h ioctl.c ops_file.c 
	                    super.h 

Log message:
	Bugzilla 230803:
	
	Allow GFS to take advantage of VFS's "bd_inode_backing_dev_info" setting
	that overrides diaper device's generic readahead value. Various benchmarks
	show we can achieve 2x more performance with large sequential write.
	
	Option is controlled by a new GFS tunable (seq_readahead).

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/diaper.c.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.1.2.3&r2=1.1.2.4
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/gfs.h.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.5&r2=1.5.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/incore.h.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.17.2.9&r2=1.17.2.10
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/ioctl.c.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.7.2.7&r2=1.7.2.8
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/ops_file.c.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.16.2.15&r2=1.16.2.16
http://sourceware.org/cgi-bin/cvsweb.cgi/cluster/gfs-kernel/src/gfs/super.h.diff?cvsroot=cluster&only_with_tag=RHEL4&r1=1.2.2.1&r2=1.2.2.2