linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2010-08-01	ceph: request FILE_LAZYIO cap when LAZY file mode is set	Sage Weil	1	-26/+24
	Also clean up the file flags -> file mode -> wanted caps functions while we're at it. This resyncs this file with userspace. Signed-off-by: Sage Weil <sage@newdream.net>
2009-11-06	ceph: make object hash a pg_pool property	Sage Weil	1	-77/+0
	The object will be hashed to a placement seed (ps) based on the pg_pool's hash function. This allows new hashes to be introduced into an existing object store, or selection of a hash appropriate to the objects that will be stored in a particular pool. Signed-off-by: Sage Weil <sage@newdream.net>
2009-11-06	ceph: use strong hash function for mapping objects to pgs	Sage Weil	1	-23/+70
	We were using the (weak) dcache hash function, but it was leaving lower bits consecutive for consecutive (inode) objects. We really want to make the object to pg mapping random and uniform, so use a proper hash function here. This is Robert Jenkin's public domain hash function (with some minor cleanup): http://burtleburtle.net/bob/hash/evahash.html This is a protocol revision. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-09	ceph: add file layout validation	Sage Weil	1	-0/+24
	This tracks updates to code shared with userspace. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06	ceph: on-wire types	Sage Weil	1	-0/+80
	These headers describe the types used to exchange messages between the Ceph client and various servers. All types are little-endian and packed. These headers are shared between the kernel and userspace, so all types are in terms of e.g. __u32. Additionally, we define a few magic values to identify the current version of the protocol(s) in use, so that discrepancies to be detected on mount. Signed-off-by: Sage Weil <sage@newdream.net>