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Reduce stack by inlining spa_impl_load 

The spa_load function may call itself recursively through
the spa_load_impl function.  This call path of spa_load->
spa_load_impl->spa_load->spa_load_impl takes 640 bytes of
stack.  By forcing spa_load_impl to be inlined as part of
spa_load the can be reduced to 448 bytes, for a savings of
192 bytes,
This commit is contained in:
Brian Behlendorf 2010-07-30 13:34:50 -07:00
parent a8a452d74b
commit ca5262f030
1 changed files with 2 additions and 1 deletions
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3
module/zfs/spa.c
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@ -1652,7 +1652,8 @@ spa_load(spa_t *spa, spa_load_state_t state, spa_import_type_t type,
* Load an existing storage pool, using the pool's builtin spa_config as a
* source of configuration information.
*/
static int
__attribute__((always_inline))
static inline int
spa_load_impl(spa_t *spa, uint64_t pool_guid, nvlist_t *config,
spa_load_state_t state, spa_import_type_t type, boolean_t mosconfig,
char **ereport)