The patch titled
Subject: z3fold-fix-memory-leak-fix
has been added to the -mm tree. Its filename is
z3fold-fix-memory-leak-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/z3fold-fix-memory-leak-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/z3fold-fix-memory-leak-fix.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: z3fold-fix-memory-leak-fix
fix oops on kzalloc() failure, check __alloc_percpu() retval
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Cc: Vitaly Wool <vitalywool@xxxxxxxxx>
Cc: Xidong Wang <wangxidong_97@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/z3fold.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff -puN mm/z3fold.c~z3fold-fix-memory-leak-fix mm/z3fold.c
--- a/mm/z3fold.c~z3fold-fix-memory-leak-fix
+++ a/mm/z3fold.c
@@ -467,6 +467,8 @@ static struct z3fold_pool *z3fold_create
spin_lock_init(&pool->lock);
spin_lock_init(&pool->stale_lock);
pool->unbuddied = __alloc_percpu(sizeof(struct list_head)*NCHUNKS, 2);
+ if (!pool->unbuddied)
+ goto out_pool;
for_each_possible_cpu(cpu) {
struct list_head *unbuddied =
per_cpu_ptr(pool->unbuddied, cpu);
@@ -479,7 +481,7 @@ static struct z3fold_pool *z3fold_create
pool->name = name;
pool->compact_wq = create_singlethread_workqueue(pool->name);
if (!pool->compact_wq)
- goto out;
+ goto out_unbuddied;
pool->release_wq = create_singlethread_workqueue(pool->name);
if (!pool->release_wq)
goto out_wq;
@@ -489,9 +491,11 @@ static struct z3fold_pool *z3fold_create
out_wq:
destroy_workqueue(pool->compact_wq);
-out:
+out_unbuddied:
free_percpu(pool->unbuddied);
+out_pool:
kfree(pool);
+out:
return NULL;
}
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
i-need-old-gcc.patch
arm-arch-arm-include-asm-pageh-needs-personalityh.patch
ocfs2-without-quota-support-try-to-avoid-calling-quota-recovery-checkpatch-fixes.patch
mm.patch
mm-initialize-pages-on-demand-during-boot-fix-4-fix.patch
mm-initialize-pages-on-demand-during-boot-v5-fix.patch
mm-initialize-pages-on-demand-during-boot-v6-checkpatch-fixes.patch
direct-io-minor-cleanups-in-do_blockdev_direct_io-fix.patch
mm-fix-races-between-swapoff-and-flush-dcache-fix.patch
headers-untangle-kmemleakh-from-mmh-fix.patch
z3fold-fix-memory-leak-fix.patch
list_lru-prefetch-neighboring-list-entries-before-acquiring-lock-fix.patch
mm-oom-cgroup-aware-oom-killer-fix.patch
mm-oom-docs-describe-the-cgroup-aware-oom-killer-fix-2-fix.patch
proc-add-seq_put_decimal_ull_width-to-speed-up-proc-pid-smaps-fix.patch
ipc-shmc-shm_split-remove-unneeded-test-for-null-shm_file_datavm_ops.patch
linux-next-rejects.patch
linux-next-git-rejects.patch
linux-next-fixup.patch
fs-fsnotify-account-fsnotify-metadata-to-kmemcg-fix.patch
kernel-forkc-export-kernel_thread-to-modules.patch
slab-leaks3-default-y.patch
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