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authorDavid Chinner <dgc@sgi.com>2007-02-10 18:34:56 +1100
committerTim Shimmin <tes@sgi.com>2007-02-10 18:34:56 +1100
commit7989cb8ef5dbc1411d3be48218c7b25ef6e71699 (patch)
tree607efa745911951a30712de44a837c1df952bd3a /fs/xfs/xfs_bit.c
parent5e6a07dfe404cd4d8494d842b54706cb007fa04b (diff)
downloadop-kernel-dev-7989cb8ef5dbc1411d3be48218c7b25ef6e71699.zip
op-kernel-dev-7989cb8ef5dbc1411d3be48218c7b25ef6e71699.tar.gz
[XFS] Keep stack usage down for 4k stacks by using noinline.
gcc-4.1 and more recent aggressively inline static functions which increases XFS stack usage by ~15% in critical paths. Prevent this from occurring by adding noinline to the STATIC definition. Also uninline some functions that are too large to be inlined and were causing problems with CONFIG_FORCED_INLINING=y. Finally, clean up all the different users of inline, __inline and __inline__ and put them under one STATIC_INLINE macro. For debug kernels the STATIC_INLINE macro uninlines those functions. SGI-PV: 957159 SGI-Modid: xfs-linux-melb:xfs-kern:27585a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: David Chatterton <chatz@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_bit.c')
-rw-r--r--fs/xfs/xfs_bit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
index 43be6a7..1afe07f 100644
--- a/fs/xfs/xfs_bit.c
+++ b/fs/xfs/xfs_bit.c
@@ -29,7 +29,7 @@
/*
* Index of high bit number in byte, -1 for none set, 0..7 otherwise.
*/
-STATIC const char xfs_highbit[256] = {
+static const char xfs_highbit[256] = {
-1, 0, 1, 1, 2, 2, 2, 2, /* 00 .. 07 */
3, 3, 3, 3, 3, 3, 3, 3, /* 08 .. 0f */
4, 4, 4, 4, 4, 4, 4, 4, /* 10 .. 17 */
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