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Merge branch 'akpm' (patches from Andrew)

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Merge second patchbomb from Andrew Morton:

 - most of the rest of MM

 - lots of misc things

 - procfs updates

 - printk feature work

 - updates to get_maintainer, MAINTAINERS, checkpatch

 - lib/ updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits)
  exit,stats: /* obey this comment */
  coredump: add __printf attribute to cn_*printf functions
  coredump: use from_kuid/kgid when formatting corename
  fs/reiserfs: remove unneeded cast
  NILFS2: support NFSv2 export
  fs/befs/btree.c: remove unneeded initializations
  fs/minix: remove unneeded cast
  init/do_mounts.c: add create_dev() failure log
  kasan: remove duplicate definition of the macro KASAN_FREE_PAGE
  fs/efs: femove unneeded cast
  checkpatch: emit "NOTE: <types>" message only once after multiple files
  checkpatch: emit an error when there's a diff in a changelog
  checkpatch: validate MODULE_LICENSE content
  checkpatch: add multi-line handling for PREFER_ETHER_ADDR_COPY
  checkpatch: suggest using eth_zero_addr() and eth_broadcast_addr()
  checkpatch: fix processing of MEMSET issues
  checkpatch: suggest using ether_addr_equal*()
  checkpatch: avoid NOT_UNIFIED_DIFF errors on cover-letter.patch files
  checkpatch: remove local from codespell path
  checkpatch: add --showfile to allow input via pipe to show filenames
  ...
This commit is contained in:
Linus Torvalds
2015-06-26 09:52:05 -07:00
parent c13c810063 51229b4953
commit 47a469421d
94 changed files with 2040 additions and 1345 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mm/hugetlb.c
-10
View File
@@ -975,7 +975,6 @@ static void update_and_free_page(struct hstate *h, struct page *page)
destroy_compound_gigantic_page(page, huge_page_order(h));
free_gigantic_page(page, huge_page_order(h));
} else {
arch_release_hugepage(page);
__free_pages(page, huge_page_order(h));
}
}
@@ -1160,10 +1159,6 @@ static struct page *alloc_fresh_huge_page_node(struct hstate *h, int nid)
__GFP_REPEAT|__GFP_NOWARN,
huge_page_order(h));
if (page) {
if (arch_prepare_hugepage(page)) {
__free_pages(page, huge_page_order(h));
return NULL;
}
prep_new_huge_page(h, page, nid);
}
@@ -1315,11 +1310,6 @@ static struct page *alloc_buddy_huge_page(struct hstate *h, int nid)
htlb_alloc_mask(h)|__GFP_COMP|__GFP_THISNODE|
__GFP_REPEAT|__GFP_NOWARN, huge_page_order(h));
if (page && arch_prepare_hugepage(page)) {
__free_pages(page, huge_page_order(h));
page = NULL;
}
spin_lock(&hugetlb_lock);
if (page) {
INIT_LIST_HEAD(&page->lru);
mm/kasan/kasan.h
-1
View File
@@ -6,7 +6,6 @@
#define KASAN_SHADOW_SCALE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT)
#define KASAN_SHADOW_MASK (KASAN_SHADOW_SCALE_SIZE - 1)
#define KASAN_FREE_PAGE 0xFF /* page was freed */
#define KASAN_FREE_PAGE 0xFF /* page was freed */
#define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocations */
#define KASAN_KMALLOC_REDZONE 0xFC /* redzone inside slub object */
mm/zbud.c
+19 -4
View File
@@ -97,6 +97,10 @@ struct zbud_pool {
struct list_head lru;
u64 pages_nr;
struct zbud_ops *ops;
#ifdef CONFIG_ZPOOL
struct zpool *zpool;
struct zpool_ops *zpool_ops;
#endif
};
/*
@@ -123,7 +127,10 @@ struct zbud_header {
static int zbud_zpool_evict(struct zbud_pool *pool, unsigned long handle)
{
return zpool_evict(pool, handle);
if (pool->zpool && pool->zpool_ops && pool->zpool_ops->evict)
return pool->zpool_ops->evict(pool->zpool, handle);
else
return -ENOENT;
}
static struct zbud_ops zbud_zpool_ops = {
@@ -131,9 +138,17 @@ static struct zbud_ops zbud_zpool_ops = {
};
static void *zbud_zpool_create(char *name, gfp_t gfp,
struct zpool_ops *zpool_ops)
struct zpool_ops *zpool_ops,
struct zpool *zpool)
{
return zbud_create_pool(gfp, zpool_ops ? &zbud_zpool_ops : NULL);
struct zbud_pool *pool;
pool = zbud_create_pool(gfp, zpool_ops ? &zbud_zpool_ops : NULL);
if (pool) {
pool->zpool = zpool;
pool->zpool_ops = zpool_ops;
}
return pool;
}
static void zbud_zpool_destroy(void *pool)
@@ -292,7 +307,7 @@ struct zbud_pool *zbud_create_pool(gfp_t gfp, struct zbud_ops *ops)
struct zbud_pool *pool;
int i;
pool = kmalloc(sizeof(struct zbud_pool), gfp);
pool = kzalloc(sizeof(struct zbud_pool), gfp);
if (!pool)
return NULL;
spin_lock_init(&pool->lock);
mm/zpool.c
+4 -31
View File
@@ -73,33 +73,6 @@ int zpool_unregister_driver(struct zpool_driver *driver)
}
EXPORT_SYMBOL(zpool_unregister_driver);
/**
* zpool_evict() - evict callback from a zpool implementation.
* @pool: pool to evict from.
* @handle: handle to evict.
*
* This can be used by zpool implementations to call the
* user's evict zpool_ops struct evict callback.
*/
int zpool_evict(void *pool, unsigned long handle)
{
struct zpool *zpool;
spin_lock(&pools_lock);
list_for_each_entry(zpool, &pools_head, list) {
if (zpool->pool == pool) {
spin_unlock(&pools_lock);
if (!zpool->ops || !zpool->ops->evict)
return -EINVAL;
return zpool->ops->evict(zpool, handle);
}
}
spin_unlock(&pools_lock);
return -ENOENT;
}
EXPORT_SYMBOL(zpool_evict);
static struct zpool_driver *zpool_get_driver(char *type)
{
struct zpool_driver *driver;
@@ -147,7 +120,7 @@ struct zpool *zpool_create_pool(char *type, char *name, gfp_t gfp,
struct zpool_driver *driver;
struct zpool *zpool;
pr_info("creating pool type %s\n", type);
pr_debug("creating pool type %s\n", type);
driver = zpool_get_driver(type);
@@ -170,7 +143,7 @@ struct zpool *zpool_create_pool(char *type, char *name, gfp_t gfp,
zpool->type = driver->type;
zpool->driver = driver;
zpool->pool = driver->create(name, gfp, ops);
zpool->pool = driver->create(name, gfp, ops, zpool);
zpool->ops = ops;
if (!zpool->pool) {
@@ -180,7 +153,7 @@ struct zpool *zpool_create_pool(char *type, char *name, gfp_t gfp,
return NULL;
}
pr_info("created %s pool\n", type);
pr_debug("created pool type %s\n", type);
spin_lock(&pools_lock);
list_add(&zpool->list, &pools_head);
@@ -202,7 +175,7 @@ struct zpool *zpool_create_pool(char *type, char *name, gfp_t gfp,
*/
void zpool_destroy_pool(struct zpool *zpool)
{
pr_info("destroying pool type %s\n", zpool->type);
pr_debug("destroying pool type %s\n", zpool->type);
spin_lock(&pools_lock);
list_del(&zpool->list);
mm/zsmalloc.c
+2 -5
View File
@@ -45,10 +45,6 @@
*
*/
#ifdef CONFIG_ZSMALLOC_DEBUG
#define DEBUG
#endif
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
@@ -313,7 +309,8 @@ static void record_obj(unsigned long handle, unsigned long obj)
#ifdef CONFIG_ZPOOL
static void *zs_zpool_create(char *name, gfp_t gfp, struct zpool_ops *zpool_ops)
static void *zs_zpool_create(char *name, gfp_t gfp, struct zpool_ops *zpool_ops,
struct zpool *zpool)
{
return zs_create_pool(name, gfp);
}
mm/zswap.c
+5 -7
View File
@@ -75,9 +75,10 @@ static u64 zswap_duplicate_entry;
/*********************************
* tunables
**********************************/
/* Enable/disable zswap (disabled by default, fixed at boot for now) */
static bool zswap_enabled __read_mostly;
module_param_named(enabled, zswap_enabled, bool, 0444);
/* Enable/disable zswap (disabled by default) */
static bool zswap_enabled;
module_param_named(enabled, zswap_enabled, bool, 0644);
/* Compressor to be used by zswap (fixed at boot for now) */
#define ZSWAP_COMPRESSOR_DEFAULT "lzo"
@@ -648,7 +649,7 @@ static int zswap_frontswap_store(unsigned type, pgoff_t offset,
u8 *src, *dst;
struct zswap_header *zhdr;
if (!tree) {
if (!zswap_enabled || !tree) {
ret = -ENODEV;
goto reject;
}
@@ -901,9 +902,6 @@ static int __init init_zswap(void)
{
gfp_t gfp = __GFP_NORETRY | __GFP_NOWARN;
if (!zswap_enabled)
return 0;
pr_info("loading zswap\n");
zswap_pool = zpool_create_pool(zswap_zpool_type, "zswap", gfp,