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author | Phillip Lougher <phillip@squashfs.org.uk> | 2013-11-18 02:31:36 +0000 |
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committer | Phillip Lougher <phillip@squashfs.org.uk> | 2013-11-20 03:58:03 +0000 |
commit | d208383d640727b70cd6689bc17e67e9b5ebf4ff (patch) | |
tree | 03a6146c22473beb13e2ebda605d6a332ddb758b /fs/f2fs/acl.c | |
parent | cd59c2ec5f37a2bc1315c9324aab6c21d43ffa1a (diff) | |
download | blackbird-op-linux-d208383d640727b70cd6689bc17e67e9b5ebf4ff.tar.gz blackbird-op-linux-d208383d640727b70cd6689bc17e67e9b5ebf4ff.zip |
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/f2fs/acl.c')
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