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[XFS] Keep stack usage down for 4k stacks by using noinline.

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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>
This commit is contained in:
David Chinner
2007-02-10 18:34:56 +11:00
committed by Tim Shimmin
parent 5e6a07dfe4
commit 7989cb8ef5
23 changed files with 89 additions and 65 deletions
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6
fs/xfs/linux-2.6/xfs_sysctl.c
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@@ -54,7 +54,7 @@ xfs_stats_clear_proc_handler(
}
#endif /* CONFIG_PROC_FS */
STATIC ctl_table xfs_table[] = {
static ctl_table xfs_table[] = {
{XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val,
sizeof(int), 0644, NULL, &proc_dointvec_minmax,
&sysctl_intvec, NULL,
@@ -136,12 +136,12 @@ STATIC ctl_table xfs_table[] = {
{0}
};
STATIC ctl_table xfs_dir_table[] = {
static ctl_table xfs_dir_table[] = {
{FS_XFS, "xfs", NULL, 0, 0555, xfs_table},
{0}
};
STATIC ctl_table xfs_root_table[] = {
static ctl_table xfs_root_table[] = {
{CTL_FS, "fs", NULL, 0, 0555, xfs_dir_table},
{0}
};