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authorMatthew Ahrens <[email protected]>2020-07-30 13:56:00 -0700
committerBrian Behlendorf <[email protected]>2020-08-05 10:28:07 -0700
commitc6f2b942bee8bb31bbd41121b7d29984ed72539f (patch)
tree280f7bc43b776c738fee903ae9e12235de695d9e
parent3c09f6949abfce179286d237665761dc27b58be2 (diff)
Remove KMC_NOMAGAZINE
Remove dead code to make the implementation easier to understand. Reviewed-by: Ryan Moeller <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matt Ahrens <[email protected]> Closes #10650
-rw-r--r--include/os/linux/spl/sys/kmem_cache.h2
-rw-r--r--lib/libspl/include/umem.h1
-rw-r--r--module/os/linux/spl/spl-kmem-cache.c10
3 files changed, 2 insertions, 11 deletions
diff --git a/include/os/linux/spl/sys/kmem_cache.h b/include/os/linux/spl/sys/kmem_cache.h
index a659df8ed..c9fc1f749 100644
--- a/include/os/linux/spl/sys/kmem_cache.h
+++ b/include/os/linux/spl/sys/kmem_cache.h
@@ -37,7 +37,6 @@
*/
typedef enum kmc_bit {
KMC_BIT_NODEBUG = 1, /* Default behavior */
- KMC_BIT_NOMAGAZINE = 2, /* XXX: Unsupported */
KMC_BIT_KMEM = 5, /* Use kmem cache */
KMC_BIT_VMEM = 6, /* Use vmem cache */
KMC_BIT_KVMEM = 7, /* Use kvmalloc linux allocator */
@@ -61,7 +60,6 @@ typedef enum kmem_cbrc {
} kmem_cbrc_t;
#define KMC_NODEBUG (1 << KMC_BIT_NODEBUG)
-#define KMC_NOMAGAZINE (1 << KMC_BIT_NOMAGAZINE)
#define KMC_KMEM (1 << KMC_BIT_KMEM)
#define KMC_VMEM (1 << KMC_BIT_VMEM)
#define KMC_KVMEM (1 << KMC_BIT_KVMEM)
diff --git a/lib/libspl/include/umem.h b/lib/libspl/include/umem.h
index b6ea3b93a..65f12595e 100644
--- a/lib/libspl/include/umem.h
+++ b/lib/libspl/include/umem.h
@@ -58,7 +58,6 @@ typedef void vmem_t;
* Flags for umem_cache_create()
*/
#define UMC_NODEBUG 0x00020000
-#define UMC_NOMAGAZINE 0x00040000
#define UMEM_CACHE_NAMELEN 31
diff --git a/module/os/linux/spl/spl-kmem-cache.c b/module/os/linux/spl/spl-kmem-cache.c
index d3afcd54d..5d1229b30 100644
--- a/module/os/linux/spl/spl-kmem-cache.c
+++ b/module/os/linux/spl/spl-kmem-cache.c
@@ -662,8 +662,7 @@ spl_magazine_create(spl_kmem_cache_t *skc)
{
int i = 0;
- if (skc->skc_flags & KMC_NOMAGAZINE)
- return (0);
+ ASSERT((skc->skc_flags & KMC_SLAB) == 0);
skc->skc_mag = kzalloc(sizeof (spl_kmem_magazine_t *) *
num_possible_cpus(), kmem_flags_convert(KM_SLEEP));
@@ -693,8 +692,7 @@ spl_magazine_destroy(spl_kmem_cache_t *skc)
spl_kmem_magazine_t *skm;
int i = 0;
- if (skc->skc_flags & KMC_NOMAGAZINE)
- return;
+ ASSERT((skc->skc_flags & KMC_SLAB) == 0);
for_each_possible_cpu(i) {
skm = skc->skc_mag[i];
@@ -721,7 +719,6 @@ spl_magazine_destroy(spl_kmem_cache_t *skc)
* KMC_KVMEM Force kvmem backed SPL cache
* KMC_SLAB Force Linux slab backed cache
* KMC_NODEBUG Disable debugging (unsupported)
- * KMC_NOMAGAZINE Enabled for kmem/vmem, Disabled for Linux slab
*/
spl_kmem_cache_t *
spl_kmem_cache_create(char *name, size_t size, size_t align,
@@ -735,7 +732,6 @@ spl_kmem_cache_create(char *name, size_t size, size_t align,
/*
* Unsupported flags
*/
- ASSERT0(flags & KMC_NOMAGAZINE);
ASSERT(vmp == NULL);
ASSERT(reclaim == NULL);
@@ -872,8 +868,6 @@ spl_kmem_cache_create(char *name, size_t size, size_t align,
rc = ENOMEM;
goto out;
}
-
- skc->skc_flags |= KMC_NOMAGAZINE;
}
down_write(&spl_kmem_cache_sem);