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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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16
fs/xfs/linux-2.6/xfs_super.c
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@@ -58,10 +58,10 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
STATIC struct quotactl_ops xfs_quotactl_operations;
STATIC struct super_operations xfs_super_operations;
STATIC kmem_zone_t *xfs_vnode_zone;
STATIC kmem_zone_t *xfs_ioend_zone;
static struct quotactl_ops xfs_quotactl_operations;
static struct super_operations xfs_super_operations;
static kmem_zone_t *xfs_vnode_zone;
static kmem_zone_t *xfs_ioend_zone;
mempool_t *xfs_ioend_pool;
STATIC struct xfs_mount_args *
@@ -121,7 +121,7 @@ xfs_max_file_offset(
return (((__uint64_t)pagefactor) << bitshift) - 1;
}
STATIC __inline__ void
STATIC_INLINE void
xfs_set_inodeops(
struct inode *inode)
{
@@ -147,7 +147,7 @@ xfs_set_inodeops(
}
}
STATIC __inline__ void
STATIC_INLINE void
xfs_revalidate_inode(
xfs_mount_t *mp,
bhv_vnode_t *vp,
@@ -873,7 +873,7 @@ xfs_fs_get_sb(
mnt);
}
STATIC struct super_operations xfs_super_operations = {
static struct super_operations xfs_super_operations = {
.alloc_inode = xfs_fs_alloc_inode,
.destroy_inode = xfs_fs_destroy_inode,
.write_inode = xfs_fs_write_inode,
@@ -887,7 +887,7 @@ STATIC struct super_operations xfs_super_operations = {
.show_options = xfs_fs_show_options,
};
STATIC struct quotactl_ops xfs_quotactl_operations = {
static struct quotactl_ops xfs_quotactl_operations = {
.quota_sync = xfs_fs_quotasync,
.get_xstate = xfs_fs_getxstate,
.set_xstate = xfs_fs_setxstate,