linux/fs/sysv
Linus Torvalds 8387ff2577 vfs: make the string hashes salt the hash
We always mixed in the parent pointer into the dentry name hash, but we
did it late at lookup time.  It turns out that we can simplify that
lookup-time action by salting the hash with the parent pointer early
instead of late.

A few other users of our string hashes also wanted to mix in their own
pointers into the hash, and those are updated to use the same mechanism.

Hash users that don't have any particular initial salt can just use the
NULL pointer as a no-salt.

Cc: Vegard Nossum <vegard.nossum@oracle.com>
Cc: George Spelvin <linux@sciencehorizons.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-06-10 20:21:46 -07:00
..
Kconfig fs/Kconfig: move sysv out 2009-01-22 13:15:59 +03:00
Makefile sysv: switch to simple_follow_link() 2015-05-10 22:18:26 -04:00
balloc.c sysv: drop lock/unlock super 2012-10-09 23:33:39 -04:00
dir.c simple local filesystems: switch to ->iterate_shared() 2016-05-02 19:49:32 -04:00
file.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
ialloc.c sysv: drop lock/unlock super 2012-10-09 23:33:39 -04:00
inode.c kmemcg: account certain kmem allocations to memcg 2016-01-14 16:00:49 -08:00
itree.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
namei.c vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
super.c sysv: Add forgotten superblock lock init for v7 fs 2013-09-29 22:02:02 -04:00
sysv.h fs: cleanup slight list_entry abuse 2015-06-23 18:01:59 -04:00