linux/security/tomoyo
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
..
policy tomoyo: Do not generate empty policy files 2015-04-07 21:27:45 +02:00
.gitignore tomoyo: Do not generate empty policy files 2015-04-07 21:27:45 +02:00
Kconfig tomoyo: Use bin2c to generate builtin-policy.h 2015-04-07 21:27:45 +02:00
Makefile tomoyo: Do not generate empty policy files 2015-04-07 21:27:45 +02:00
audit.c tomoyo: Use sensible time interface 2014-06-12 16:18:45 +02:00
common.c tomoyo: Use sensible time interface 2014-06-12 16:18:45 +02:00
common.h tomoyo: constify assorted struct path * 2016-03-28 00:47:23 -04:00
condition.c VFS: security/: d_backing_inode() annotations 2015-04-15 15:06:56 -04:00
domain.c mm/gup: Introduce get_user_pages_remote() 2016-02-16 10:04:09 +01:00
environ.c TOMOYO: Add environment variable name restriction support. 2011-09-14 08:27:05 +10:00
file.c tomoyo: constify assorted struct path * 2016-03-28 00:47:23 -04:00
gc.c TOMOYO: Fix quota and garbage collector. 2011-10-12 12:15:20 +11:00
group.c TOMOYO: Add socket operation restriction support. 2011-09-14 08:27:05 +10:00
load_policy.c usermodehelper: use UMH_WAIT_PROC consistently 2012-03-23 16:58:41 -07:00
memory.c vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
mount.c tomoyo: constify assorted struct path * 2016-03-28 00:47:23 -04:00
network.c TOMOYO: Add socket operation restriction support. 2011-09-14 08:27:05 +10:00
realpath.c VFS: security/: d_backing_inode() annotations 2015-04-15 15:06:56 -04:00
securityfs_if.c convert a bunch of open-coded instances of memdup_user_nul() 2016-01-04 10:26:58 -05:00
tomoyo.c constify security_sb_pivotroot() 2016-03-28 00:47:52 -04:00
util.c vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00