linux/fs/ceph
Linus Torvalds 554828ee0d Merge branch 'salted-string-hash'
This changes the vfs dentry hashing to mix in the parent pointer at the
_beginning_ of the hash, rather than at the end.

That actually improves both the hash and the code generation, because we
can move more of the computation to the "static" part of the dcache
setup, and do less at lookup runtime.

It turns out that a lot of other hash users also really wanted to mix in
a base pointer as a 'salt' for the hash, and so the slightly extended
interface ends up working well for other cases too.

Users that want a string hash that is purely about the string pass in a
'salt' pointer of NULL.

* merge branch 'salted-string-hash':
  fs/dcache.c: Save one 32-bit multiply in dcache lookup
  vfs: make the string hashes salt the hash
2016-07-28 12:26:31 -07:00
..
acl.c ceph: Get rid of d_find_alias in ceph_set_acl 2016-04-23 15:41:30 -04:00
addr.c ceph: disable fscache when inode is opened for write 2016-06-01 10:31:07 +02:00
cache.c ceph: use i_version to check validity of fscache 2016-06-01 10:32:14 +02:00
cache.h ceph: improve fscache revalidation 2016-06-01 10:31:50 +02:00
caps.c ceph: improve fscache revalidation 2016-06-01 10:31:50 +02:00
ceph_frag.c ceph: factor out libceph from Ceph file system 2010-10-20 15:37:28 -07:00
debugfs.c ceph: don't show symlink target in debugfs/mdsc 2016-05-26 01:15:32 +02:00
dir.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2016-05-26 14:10:32 -07:00
export.c ceph: fix d_obtain_alias() misuses 2016-06-24 23:49:03 -04:00
file.c Use the right predicate in ->atomic_open() instances 2016-07-05 16:02:23 -04:00
inode.c vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
ioctl.c libceph: a major OSD client update 2016-05-26 01:14:03 +02:00
ioctl.h ceph: fully initialize new layout 2012-05-16 14:28:27 -05:00
Kconfig ceph: add acl for cephfs 2013-12-31 20:32:01 +02:00
locks.c Move locks API users to locks_lock_inode_wait() 2015-10-22 14:57:36 -04:00
Makefile ceph: add acl for cephfs 2013-12-31 20:32:01 +02:00
mds_client.c vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
mds_client.h ceph: using hash value to compose dentry offset 2016-05-26 01:15:36 +02:00
mdsmap.c ceph: CEPH_FEATURE_MDSENC support 2016-05-26 01:15:31 +02:00
snap.c ceph: kill ceph_empty_snapc 2016-03-25 18:51:52 +01:00
strings.c ceph: rename snapshot support 2015-04-22 18:33:41 +03:00
super.c ceph: report mount root in session metadata 2016-05-26 01:15:33 +02:00
super.h ceph: improve fscache revalidation 2016-06-01 10:31:50 +02:00
xattr.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-27 17:14:05 -07:00