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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-06 11:16:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-08 18:08:44 -0800
commitbfcfaa77bdf0f775263e906015982a608df01c76 (patch)
tree6671137d4af157b851d953b7e2809abbfa809e81 /fs/Kconfig
parent9f8050c4f99789d03ca96d4e625bd6637241828f (diff)
downloadvexpress-lsk-bfcfaa77bdf0f775263e906015982a608df01c76.tar.gz
vfs: use 'unsigned long' accesses for dcache name comparison and hashing
Ok, this is hacky, and only works on little-endian machines with goo unaligned handling. And even then only with CONFIG_DEBUG_PAGEALLOC disabled, since it can access up to 7 bytes after the pathname. But it runs like a bat out of hell. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/Kconfig')
-rw-r--r--fs/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index d621f02a3f9..aa195265362 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -4,6 +4,10 @@
menu "File systems"
+# Use unaligned word dcache accesses
+config DCACHE_WORD_ACCESS
+ bool
+
if BLOCK
source "fs/ext2/Kconfig"