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module/*.ko: prune .data, global .rodata

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Evaluated every variable that lives in .data (and globals in .rodata)
in the kernel modules, and constified/eliminated/localised them
appropriately. This means that all read-only data is now actually
read-only data, and, if possible, at file scope. A lot of previously-
global-symbols became inlinable (and inlined!) constants. Probably
not in a big Wowee Performance Moment, but hey.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12899
This commit is contained in:
наб
2022-01-15 00:37:55 +01:00
committed by GitHub
parent 7adc190098
commit 18168da727
147 changed files with 781 additions and 876 deletions
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module/os/linux/spl/spl-kmem-cache.c
+6 -6
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@@ -72,7 +72,7 @@
* will be limited to 2-256 objects per magazine (i.e per cpu). Magazines
* may never be entirely disabled in this implementation.
*/
unsigned int spl_kmem_cache_magazine_size = 0;
static unsigned int spl_kmem_cache_magazine_size = 0;
module_param(spl_kmem_cache_magazine_size, uint, 0444);
MODULE_PARM_DESC(spl_kmem_cache_magazine_size,
"Default magazine size (2-256), set automatically (0)");
@@ -84,15 +84,15 @@ MODULE_PARM_DESC(spl_kmem_cache_magazine_size,
* setting this value to KMC_RECLAIM_ONCE limits how aggressively the cache
* is reclaimed. This may increase the likelihood of out of memory events.
*/
unsigned int spl_kmem_cache_reclaim = 0 /* KMC_RECLAIM_ONCE */;
static unsigned int spl_kmem_cache_reclaim = 0 /* KMC_RECLAIM_ONCE */;
module_param(spl_kmem_cache_reclaim, uint, 0644);
MODULE_PARM_DESC(spl_kmem_cache_reclaim, "Single reclaim pass (0x1)");
unsigned int spl_kmem_cache_obj_per_slab = SPL_KMEM_CACHE_OBJ_PER_SLAB;
static unsigned int spl_kmem_cache_obj_per_slab = SPL_KMEM_CACHE_OBJ_PER_SLAB;
module_param(spl_kmem_cache_obj_per_slab, uint, 0644);
MODULE_PARM_DESC(spl_kmem_cache_obj_per_slab, "Number of objects per slab");
unsigned int spl_kmem_cache_max_size = SPL_KMEM_CACHE_MAX_SIZE;
static unsigned int spl_kmem_cache_max_size = SPL_KMEM_CACHE_MAX_SIZE;
module_param(spl_kmem_cache_max_size, uint, 0644);
MODULE_PARM_DESC(spl_kmem_cache_max_size, "Maximum size of slab in MB");
@@ -103,7 +103,7 @@ MODULE_PARM_DESC(spl_kmem_cache_max_size, "Maximum size of slab in MB");
* of 16K was determined to be optimal for architectures using 4K pages and
* to also work well on architecutres using larger 64K page sizes.
*/
unsigned int spl_kmem_cache_slab_limit = 16384;
static unsigned int spl_kmem_cache_slab_limit = 16384;
module_param(spl_kmem_cache_slab_limit, uint, 0644);
MODULE_PARM_DESC(spl_kmem_cache_slab_limit,
"Objects less than N bytes use the Linux slab");
@@ -112,7 +112,7 @@ MODULE_PARM_DESC(spl_kmem_cache_slab_limit,
* The number of threads available to allocate new slabs for caches. This
* should not need to be tuned but it is available for performance analysis.
*/
unsigned int spl_kmem_cache_kmem_threads = 4;
static unsigned int spl_kmem_cache_kmem_threads = 4;
module_param(spl_kmem_cache_kmem_threads, uint, 0444);
MODULE_PARM_DESC(spl_kmem_cache_kmem_threads,
"Number of spl_kmem_cache threads");