AcoSail/kernel_optimize_test
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554828ee0d
kernel_optimize_test/fs
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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
..
9p Use the right predicate in ->atomic_open() instances 2016-07-05 16:02:23 -04:00
adfs vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
affs vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
afs rxrpc: Limit the listening backlog 2016-06-10 18:14:47 -07:00
autofs4 Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
befs fs/befs/io.c:befs_bread(): remove unneeded initialization to NULL 2016-05-23 17:04:14 -07:00
bfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
btrfs Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
cachefiles FS-Cache: make check_consistency callback return int 2016-06-01 10:29:39 +02:00
ceph Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
cifs Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
coda introduce a parallel variant of ->iterate() 2016-05-02 19:49:29 -04:00
configfs configfs: Remove ppos increment in configfs_write_bin_file 2016-06-30 11:28:55 +02:00
cramfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
crypto block, fs, mm, drivers: use bio set/get op accessors 2016-06-07 13:41:38 -06:00
debugfs debugfs: open_proxy_open(): avoid double fops release 2016-06-15 04:56:35 -07:00
devpts devpts: Make each mount of devpts an independent filesystem. 2016-06-05 10:36:01 -07:00
dlm dlm: Use kmemdup instead of kmalloc and memcpy 2016-06-23 11:55:58 -05:00
ecryptfs ecryptfs: don't allow mmap when the lower fs doesn't support it 2016-07-08 10:35:28 -05:00
efivarfs vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
efs fs/efs/super.c: fix return value 2016-05-20 17:58:30 -07:00
exofs block, fs, mm, drivers: use bio set/get op accessors 2016-06-07 13:41:38 -06:00
exportfs introduce a parallel variant of ->iterate() 2016-05-02 19:49:29 -04:00
ext2 Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
ext4 Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
f2fs The major change in this version is mitigating cpu overheads on write paths by 2016-07-27 10:36:31 -07:00
fat Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
freevxfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
fscache FS-Cache: wake write waiter after invalidating writes 2016-06-01 10:29:09 +02:00
fuse Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
gfs2 Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block 2016-07-26 15:37:51 -07:00
hfs vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
hfsplus Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
hostfs hostfs: switch to ->iterate_shared() 2016-05-12 19:49:30 -04:00
hpfs vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
hugetlbfs mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage 2016-04-04 10:41:08 -07:00
isofs Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
jbd2 The major change this cycle is deleting ext4's copy of the file system 2016-07-26 18:35:55 -07:00
jffs2 vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
jfs Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
kernfs vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
lockd lockd: unregister notifier blocks if the service fails to come up completely 2016-06-30 16:35:07 -04:00
logfs Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
minix simple local filesystems: switch to ->iterate_shared() 2016-05-02 19:49:32 -04:00
ncpfs vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
nfs Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
nfs_common
nfsd xfs: update for 4.8-rc1 2016-07-27 09:53:35 -07:00
nilfs2 Merge branch 'for-4.8/core' of git://git.kernel.dk/linux-block 2016-07-26 15:03:07 -07:00
nls
notify fsnotify: avoid spurious EMFILE errors from inotify_init() 2016-05-19 19:12:14 -07:00
ntfs Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
ocfs2 Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
omfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
openpromfs more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
orangefs Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
overlayfs ovl: verify upper dentry in ovl_remove_and_whiteout() 2016-07-22 10:54:20 +02:00
proc Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
pstore pstore/ram: add Device Tree bindings 2016-06-14 11:34:39 -07:00
qnx4 more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
qnx6 more trivial ->iterate_shared conversions 2016-05-09 11:41:14 -04:00
quota fs/quota: use nla_put_u64_64bit() 2016-04-26 12:00:48 -04:00
ramfs tmpfs/ramfs: fix VM_MAYSHARE mappings for NOMMU 2016-05-20 17:58:30 -07:00
reiserfs Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block 2016-07-26 15:37:51 -07:00
romfs romfs, squashfs: switch to ->iterate_shared() 2016-05-09 11:41:15 -04:00
squashfs fs: have ll_rw_block users pass in op and flags separately 2016-06-07 13:41:38 -06:00
sysfs
sysv vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
tracefs
ubifs UBIFS: Implement ->migratepage() 2016-06-23 00:29:53 +02:00
udf Merge branch 'for-4.8/drivers' of git://git.kernel.dk/linux-block 2016-07-26 15:37:51 -07:00
ufs fs: have ll_rw_block users pass in op and flags separately 2016-06-07 13:41:38 -06:00
xfs xfs: update for 4.8-rc1 2016-07-27 09:53:35 -07:00
aio.c aio: make aio_setup_ring killable 2016-05-23 17:04:14 -07:00
anon_inodes.c
attr.c
bad_inode.c switch ->setxattr() to passing dentry and inode separately 2016-05-27 20:09:16 -04:00
binfmt_aout.c fs: fix binfmt_aout.c build error 2016-05-28 16:34:59 -07:00
binfmt_elf_fdpic.c coredump: fix dumping through pipes 2016-06-07 22:07:09 -04:00
binfmt_elf.c coredump: fix dumping through pipes 2016-06-07 22:07:09 -04:00
binfmt_em86.c
binfmt_flat.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
binfmt_misc.c
binfmt_script.c
block_dev.c block: add QUEUE_FLAG_DAX for devices to advertise their DAX support 2016-07-20 21:01:01 -06:00
buffer.c xfs: update for 4.8-rc1 2016-07-27 09:53:35 -07:00
char_dev.c chardev: add missing line break in pr_warn 2016-07-14 16:21:53 +09:00
compat_binfmt_elf.c
compat_ioctl.c [media] cec: add compat32 ioctl support 2016-06-28 10:00:13 -03:00
compat.c Fix a number of bugs, most notably a potential stale data exposure 2016-05-24 12:55:26 -07:00
coredump.c coredump: fix dumping through pipes 2016-06-07 22:07:09 -04:00
dax.c dax: remote unused fault wrappers 2016-07-26 16:19:19 -07:00
dcache.c Merge branch 'salted-string-hash' 2016-07-28 12:26:31 -07:00
dcookies.c
direct-io.c direct-io: use bio set/get op accessors 2016-06-07 13:41:38 -06:00
drop_caches.c
eventfd.c
eventpoll.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
exec.c exec: make exec path waiting for mmap_sem killable 2016-05-23 17:04:14 -07:00
fcntl.c
fhandle.c
file_table.c
file.c give readdir(2)/getdents(2)/etc. uniform exclusion with lseek() 2016-05-02 19:49:28 -04:00
filesystems.c
fs_pin.c
fs_struct.c
fs-writeback.c fs/fs-writeback.c: inode writeback list tracking tracepoints 2016-07-26 16:19:19 -07:00
inode.c fs/fs-writeback.c: add a new writeback list for sync 2016-07-26 16:19:19 -07:00
internal.h xfs: update for 4.8-rc1 2016-07-27 09:53:35 -07:00
ioctl.c
iomap.c fs: iomap based fiemap implementation 2016-06-21 09:38:45 +10:00
Kconfig fs: introduce iomap infrastructure 2016-06-21 09:23:11 +10:00
Kconfig.binfmt ELF/MIPS build fix 2016-05-23 17:04:14 -07:00
libfs.c lockless next_positive() 2016-06-20 17:11:29 -04:00
locks.c locks: use file_inode() 2016-07-01 10:24:18 -04:00
Makefile fs: introduce iomap infrastructure 2016-06-21 09:23:11 +10:00
mbcache.c
mount.h
mpage.c Merge branch 'akpm' (patches from Andrew) 2016-07-26 19:55:54 -07:00
namei.c vfs: make the string hashes salt the hash 2016-06-10 20:21:46 -07:00
namespace.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-07-01 15:20:11 -07:00
no-block.c
nsfs.c
open.c Merge branch 'work.const-path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-05-17 14:41:03 -07:00
pipe.c pipe: account to kmemcg 2016-07-26 16:19:19 -07:00
pnode.c propogate_mnt: Handle the first propogated copy being a slave 2016-05-05 09:54:45 -05:00
pnode.h
posix_acl.c posix_acl: Add set_posix_acl 2016-06-24 12:11:34 -04:00
proc_namespace.c
read_write.c x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2 2016-07-15 10:30:26 +02:00
readdir.c restore killability of old mutex_lock_killable(&inode->i_mutex) users 2016-05-26 00:13:25 -04:00
select.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
seq_file.c Make file credentials available to the seqfile interfaces 2016-04-14 12:56:09 -07:00
signalfd.c
splice.c Merge branch 'ovl-fixes' into for-linus 2016-05-11 00:00:29 -04:00
stack.c
stat.c
statfs.c
super.c fs/fs-writeback.c: add a new writeback list for sync 2016-07-26 16:19:19 -07:00
sync.c mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
timerfd.c timerfd: Reject ALARM timerfds without CAP_WAKE_ALARM 2016-06-09 23:42:38 +02:00
userfaultfd.c mm: introduce fault_env 2016-07-26 16:19:19 -07:00
utimes.c
xattr.c switch ->setxattr() to passing dentry and inode separately 2016-05-27 20:09:16 -04:00