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Add linux kernel memory support

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Required kmem/vmem changes

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf
2010-08-26 11:46:09 -07:00
parent 60101509ee
commit 00b46022c6
14 changed files with 77 additions and 41 deletions
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module/zfs/dbuf.c
+12
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@@ -293,7 +293,13 @@ dbuf_init(void)
retry:
h->hash_table_mask = hsize - 1;
#if defined(_KERNEL) && defined(HAVE_SPL)
/* Large allocations which do not require contiguous pages
* should be using vmem_alloc() in the linux kernel */
h->hash_table = vmem_zalloc(hsize * sizeof (void *), KM_SLEEP);
#else
h->hash_table = kmem_zalloc(hsize * sizeof (void *), KM_NOSLEEP);
#endif
if (h->hash_table == NULL) {
/* XXX - we should really return an error instead of assert */
ASSERT(hsize > (1ULL << 10));
@@ -317,7 +323,13 @@ dbuf_fini(void)
for (i = 0; i < DBUF_MUTEXES; i++)
mutex_destroy(&h->hash_mutexes[i]);
#if defined(_KERNEL) && defined(HAVE_SPL)
/* Large allocations which do not require contiguous pages
* should be using vmem_free() in the linux kernel */
vmem_free(h->hash_table, (h->hash_table_mask + 1) * sizeof (void *));
#else
kmem_free(h->hash_table, (h->hash_table_mask + 1) * sizeof (void *));
#endif
kmem_cache_destroy(dbuf_cache);
}