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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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12
fs/xfs/xfs_attr.c
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@@ -57,9 +57,9 @@
*/
#define ATTR_SYSCOUNT 2
STATIC struct attrnames posix_acl_access;
STATIC struct attrnames posix_acl_default;
STATIC struct attrnames *attr_system_names[ATTR_SYSCOUNT];
static struct attrnames posix_acl_access;
static struct attrnames posix_acl_default;
static struct attrnames *attr_system_names[ATTR_SYSCOUNT];
/*========================================================================
* Function prototypes for the kernel.
@@ -2477,7 +2477,7 @@ posix_acl_default_exists(
return xfs_acl_vhasacl_default(vp);
}
STATIC struct attrnames posix_acl_access = {
static struct attrnames posix_acl_access = {
.attr_name = "posix_acl_access",
.attr_namelen = sizeof("posix_acl_access") - 1,
.attr_get = posix_acl_access_get,
@@ -2486,7 +2486,7 @@ STATIC struct attrnames posix_acl_access = {
.attr_exists = posix_acl_access_exists,
};
STATIC struct attrnames posix_acl_default = {
static struct attrnames posix_acl_default = {
.attr_name = "posix_acl_default",
.attr_namelen = sizeof("posix_acl_default") - 1,
.attr_get = posix_acl_default_get,
@@ -2495,7 +2495,7 @@ STATIC struct attrnames posix_acl_default = {
.attr_exists = posix_acl_default_exists,
};
STATIC struct attrnames *attr_system_names[] =
static struct attrnames *attr_system_names[] =
{ &posix_acl_access, &posix_acl_default };