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authorPhillip Lougher <phillip@squashfs.org.uk>2013-11-18 06:31:36 +0400
committerPhillip Lougher <phillip@squashfs.org.uk>2013-11-20 07:58:03 +0400
commitd208383d640727b70cd6689bc17e67e9b5ebf4ff (patch)
tree03a6146c22473beb13e2ebda605d6a332ddb758b /fs/squashfs/Makefile
parentcd59c2ec5f37a2bc1315c9324aab6c21d43ffa1a (diff)
downloadlinux-d208383d640727b70cd6689bc17e67e9b5ebf4ff.tar.xz
Squashfs: add multi-threaded decompression using percpu variable
Add a multi-threaded decompression implementation which uses percpu variables. Using percpu variables has advantages and disadvantages over implementations which do not use percpu variables. Advantages: * the nature of percpu variables ensures decompression is load-balanced across the multiple cores. * simplicity. Disadvantages: it limits decompression to one thread per core. Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Diffstat (limited to 'fs/squashfs/Makefile')
-rw-r--r--fs/squashfs/Makefile10
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index dfebc3b12d61..5833b96ee69c 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -5,14 +5,10 @@
obj-$(CONFIG_SQUASHFS) += squashfs.o
squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
squashfs-y += namei.o super.o symlink.o decompressor.o
-
+squashfs-$(CONFIG_SQUASHFS_DECOMP_SINGLE) += decompressor_single.o
+squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI) += decompressor_multi.o
+squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU) += decompressor_multi_percpu.o
squashfs-$(CONFIG_SQUASHFS_XATTR) += xattr.o xattr_id.o
squashfs-$(CONFIG_SQUASHFS_LZO) += lzo_wrapper.o
squashfs-$(CONFIG_SQUASHFS_XZ) += xz_wrapper.o
squashfs-$(CONFIG_SQUASHFS_ZLIB) += zlib_wrapper.o
-
-ifdef CONFIG_SQUASHFS_MULTI_DECOMPRESSOR
- squashfs-y += decompressor_multi.o
-else
- squashfs-y += decompressor_single.o
-endif