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| author | David Chinner <dgc@sgi.com> | 2007-02-10 18:34:56 +1100 |
|---|---|---|
| committer | Tim Shimmin <tes@sgi.com> | 2007-02-10 18:34:56 +1100 |
| commit | 7989cb8ef5dbc1411d3be48218c7b25ef6e71699 (patch) | |
| tree | 607efa745911951a30712de44a837c1df952bd3a /fs/xfs/xfs_bit.c | |
| parent | 5e6a07dfe404cd4d8494d842b54706cb007fa04b (diff) | |
| download | linux-7989cb8ef5dbc1411d3be48218c7b25ef6e71699.tar.gz linux-7989cb8ef5dbc1411d3be48218c7b25ef6e71699.tar.bz2 linux-7989cb8ef5dbc1411d3be48218c7b25ef6e71699.zip | |
[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.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c index 43be6a7e47c6..1afe07f67e3b 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 */ |