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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-06 02:32:45 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-06 02:32:45 +0300
commit6614a3c3164a5df2b54abb0b3559f51041cf705b (patch)
tree1c25c23d9efed988705287fc2ccb78e0e76e311d /mm/zsmalloc.c
parent74cae210a335d159f2eb822e261adee905b6951a (diff)
parent360614c01f81f48a89d8b13f8fa69c3ae0a1f5c7 (diff)
downloadlinux-6614a3c3164a5df2b54abb0b3559f51041cf705b.tar.xz
Merge tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton: "Most of the MM queue. A few things are still pending. Liam's maple tree rework didn't make it. This has resulted in a few other minor patch series being held over for next time. Multi-gen LRU still isn't merged as we were waiting for mapletree to stabilize. The current plan is to merge MGLRU into -mm soon and to later reintroduce mapletree, with a view to hopefully getting both into 6.1-rc1. Summary: - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe Lin, Yang Shi, Anshuman Khandual and Mike Rapoport - Some kmemleak fixes from Patrick Wang and Waiman Long - DAMON updates from SeongJae Park - memcg debug/visibility work from Roman Gushchin - vmalloc speedup from Uladzislau Rezki - more folio conversion work from Matthew Wilcox - enhancements for coherent device memory mapping from Alex Sierra - addition of shared pages tracking and CoW support for fsdax, from Shiyang Ruan - hugetlb optimizations from Mike Kravetz - Mel Gorman has contributed some pagealloc changes to improve latency and realtime behaviour. - mprotect soft-dirty checking has been improved by Peter Xu - Many other singleton patches all over the place" [ XFS merge from hell as per Darrick Wong in https://lore.kernel.org/all/YshKnxb4VwXycPO8@magnolia/ ] * tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (282 commits) tools/testing/selftests/vm/hmm-tests.c: fix build mm: Kconfig: fix typo mm: memory-failure: convert to pr_fmt() mm: use is_zone_movable_page() helper hugetlbfs: fix inaccurate comment in hugetlbfs_statfs() hugetlbfs: cleanup some comments in inode.c hugetlbfs: remove unneeded header file hugetlbfs: remove unneeded hugetlbfs_ops forward declaration hugetlbfs: use helper macro SZ_1{K,M} mm: cleanup is_highmem() mm/hmm: add a test for cross device private faults selftests: add soft-dirty into run_vmtests.sh selftests: soft-dirty: add test for mprotect mm/mprotect: fix soft-dirty check in can_change_pte_writable() mm: memcontrol: fix potential oom_lock recursion deadlock mm/gup.c: fix formatting in check_and_migrate_movable_page() xfs: fail dax mount if reflink is enabled on a partition mm/memcontrol.c: remove the redundant updating of stats_flush_threshold userfaultfd: don't fail on unrecognized features hugetlb_cgroup: fix wrong hugetlb cgroup numa stat ...
Diffstat (limited to 'mm/zsmalloc.c')
-rw-r--r--mm/zsmalloc.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 71d6edcbea48..34f784a1604b 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -386,7 +386,10 @@ static int zs_zpool_malloc(void *pool, size_t size, gfp_t gfp,
unsigned long *handle)
{
*handle = zs_malloc(pool, size, gfp);
- return *handle ? 0 : -1;
+
+ if (IS_ERR((void *)(*handle)))
+ return PTR_ERR((void *)*handle);
+ return 0;
}
static void zs_zpool_free(void *pool, unsigned long handle)
{
@@ -1388,7 +1391,7 @@ static unsigned long obj_malloc(struct zs_pool *pool,
* @gfp: gfp flags when allocating object
*
* On success, handle to the allocated object is returned,
- * otherwise 0.
+ * otherwise an ERR_PTR().
* Allocation requests with size > ZS_MAX_ALLOC_SIZE will fail.
*/
unsigned long zs_malloc(struct zs_pool *pool, size_t size, gfp_t gfp)
@@ -1399,11 +1402,11 @@ unsigned long zs_malloc(struct zs_pool *pool, size_t size, gfp_t gfp)
struct zspage *zspage;
if (unlikely(!size || size > ZS_MAX_ALLOC_SIZE))
- return 0;
+ return (unsigned long)ERR_PTR(-EINVAL);
handle = cache_alloc_handle(pool, gfp);
if (!handle)
- return 0;
+ return (unsigned long)ERR_PTR(-ENOMEM);
/* extra space in chunk to keep the handle */
size += ZS_HANDLE_SIZE;
@@ -1428,7 +1431,7 @@ unsigned long zs_malloc(struct zs_pool *pool, size_t size, gfp_t gfp)
zspage = alloc_zspage(pool, class, gfp);
if (!zspage) {
cache_free_handle(pool, handle);
- return 0;
+ return (unsigned long)ERR_PTR(-ENOMEM);
}
spin_lock(&class->lock);
@@ -2169,7 +2172,8 @@ static int zs_register_shrinker(struct zs_pool *pool)
pool->shrinker.batch = 0;
pool->shrinker.seeks = DEFAULT_SEEKS;
- return register_shrinker(&pool->shrinker);
+ return register_shrinker(&pool->shrinker, "mm-zspool:%s",
+ pool->name);
}
/**