diff options
| author | Brian Behlendorf <[email protected]> | 2015-10-12 12:31:05 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2015-10-13 09:50:40 -0700 |
| commit | 9b13f65d284d3a6b455df3199ffc83fd18bbdded (patch) | |
| tree | 553d7c24cd00bed90101058851c6e77a48107a6f /include | |
| parent | 374303a3c9f7783e2b8122f5dcf2c1d053cf13f7 (diff) | |
Fix CPU hotplug
Allocate a kmem cache magazine for every possible CPU which might
be added to the system. This ensures that when one of these CPUs
is enabled it can be safely used immediately.
For many systems the number of online CPUs is identical to the
number of present CPUs so this does imply an increased memory
footprint. In fact, dynamically allocating the array of magazine
pointers instead of using the worst case NR_CPUS can end up
decreasing our memory footprint.
Signed-off-by: Brian Behlendorf <[email protected]>
Signed-off-by: Ned Bass <[email protected]>
Closes #482
Diffstat (limited to 'include')
| -rw-r--r-- | include/sys/kmem_cache.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/sys/kmem_cache.h b/include/sys/kmem_cache.h index 75a0a55b7..e971c2b0d 100644 --- a/include/sys/kmem_cache.h +++ b/include/sys/kmem_cache.h @@ -170,7 +170,7 @@ typedef struct spl_kmem_cache { uint32_t skc_magic; /* Sanity magic */ uint32_t skc_name_size; /* Name length */ char *skc_name; /* Name string */ - spl_kmem_magazine_t *skc_mag[NR_CPUS]; /* Per-CPU warm cache */ + spl_kmem_magazine_t **skc_mag; /* Per-CPU warm cache */ uint32_t skc_mag_size; /* Magazine size */ uint32_t skc_mag_refill; /* Magazine refill count */ spl_kmem_ctor_t skc_ctor; /* Constructor */ |