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Remove KMC_KMEM and KMC_VMEM

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`KMC_KMEM` and `KMC_VMEM` are now unused since all SPL-implemented
caches are `KMC_KVMEM`.

KMC_KMEM: Given the default value of `spl_kmem_cache_kmem_limit`, we
don't use kmalloc to back the SPL caches, instead we use kvmalloc
(KMC_KVMEM).  The flag, module parameter, /proc entries, and associated
code are removed.

KMC_VMEM: This flag is not used, and kvmalloc() is always preferable to
vmalloc().  The flag, /proc entries, and associated code are removed.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #10673
This commit is contained in:
Matthew Ahrens
2020-08-17 16:04:28 -07:00
committed by GitHub
parent 3df0c2fa32
commit 994de7e4b7
5 changed files with 10 additions and 151 deletions
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include/sys/zfs_context.h
-2
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@@ -402,8 +402,6 @@ void procfs_list_add(procfs_list_t *procfs_list, void *p);
#define KM_NOSLEEP UMEM_DEFAULT
#define KM_NORMALPRI 0 /* not needed with UMEM_DEFAULT */
#define KMC_NODEBUG UMC_NODEBUG
#define KMC_KMEM 0x0
#define KMC_VMEM 0x0
#define KMC_KVMEM 0x0
#define kmem_alloc(_s, _f) umem_alloc(_s, _f)
#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f)