The patch titled
unionfs: fix memory leak
has been added to the -mm tree. Its filename is
unionfs-fix-memory-leak.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: unionfs: fix memory leak
From: Hugh Dickins <hugh@xxxxxxxxxxx>
Unionfs has slowly been leaking memory: although many places do explicitly
free the dentry's lower_paths array (and I've not changed those, in case
the ordering is important), not all do - and adding a WARN_ON didn't seem
to finger any particular culprit. So free_dentry_private_data needs to
kfree lower_paths (other freeers are good about setting it to NULL).
Signed-off-by: Hugh Dickins <hugh@xxxxxxxxxxx>
Cc: Erez Zadok <ezk@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/unionfs/lookup.c | 1 +
1 file changed, 1 insertion(+)
diff -puN fs/unionfs/lookup.c~unionfs-fix-memory-leak fs/unionfs/lookup.c
--- a/fs/unionfs/lookup.c~unionfs-fix-memory-leak
+++ a/fs/unionfs/lookup.c
@@ -498,6 +498,7 @@ void free_dentry_private_data(struct den
{
if (!dentry || !dentry->d_fsdata)
return;
+ kfree(UNIONFS_D(dentry)->lower_paths);
kmem_cache_free(unionfs_dentry_cachep, dentry->d_fsdata);
dentry->d_fsdata = NULL;
}
_
Patches currently in -mm which might be from hugh@xxxxxxxxxxx are
origin.patch
mm-dirty-page-accounting-vs-vm_mixedmap.patch
git-unionfs.patch
unionfs-fix-memory-leak.patch
fsstack-fsstack_copy_inode_size-locking.patch
mm-remove-nopfn-fix.patch
access_process_vm-device-memory-infrastructure.patch
use-generic_access_phys-for-dev-mem-mappings.patch
use-generic_access_phys-for-dev-mem-mappings-fix.patch
use-generic_access_phys-for-pci-mmap-on-x86.patch
powerpc-ioremap_prot.patch
spufs-use-the-new-vm_ops-access.patch
spufs-use-the-new-vm_ops-access-fix.patch
mm-remove-double-indirection-on-tlb-parameter-to-free_pgd_range-co.patch
hugetlb-move-hugetlb_acct_memory.patch
hugetlb-reserve-huge-pages-for-reliable-map_private-hugetlbfs-mappings-until-fork.patch
hugetlb-guarantee-that-cow-faults-for-a-process-that-called-mmapmap_private-on-hugetlbfs-will-succeed.patch
hugetlb-guarantee-that-cow-faults-for-a-process-that-called-mmapmap_private-on-hugetlbfs-will-succeed-fix.patch
hugetlb-guarantee-that-cow-faults-for-a-process-that-called-mmapmap_private-on-hugetlbfs-will-succeed-build-fix.patch
huge-page-private-reservation-review-cleanups.patch
huge-page-private-reservation-review-cleanups-fix.patch
mm-record-map_noreserve-status-on-vmas-and-fix-small-page-mprotect-reservations.patch
hugetlb-move-reservation-region-support-earlier.patch
hugetlb-allow-huge-page-mappings-to-be-created-without-reservations.patch
hugetlb-allow-huge-page-mappings-to-be-created-without-reservations-cleanups.patch
generic_file_aio_read-cleanups.patch
tmpfs-support-aio.patch
hugetlb-modular-state-for-hugetlb-page-size-cleanup.patch
hugetlb-reservations-move-region-tracking-earlier.patch
hugetlb-reservations-fix-hugetlb-map_private-reservations-across-vma-splits-v2.patch
hugetlb-fix-race-when-reading-proc-meminfo.patch
security-remove-unused-forwards.patch
exec-remove-some-includes.patch
memcg-better-migration-handling.patch
memcg-remove-refcnt-from-page_cgroup.patch
memcg-remove-refcnt-from-page_cgroup-fix.patch
memcg-remove-refcnt-from-page_cgroup-fix-2.patch
memcg-remove-refcnt-from-page_cgroup-fix-memcg-fix-mem_cgroup_end_migration-race.patch
memcg-handle-swap-cache.patch
memcg-handle-swap-cache-fix.patch
memcg-handle-swap-cache-fix-shmem-page-migration-incorrectness-on-memcgroup.patch
memcg-helper-function-for-relcaim-from-shmem.patch
memcg-add-hints-for-branch.patch
memcg-remove-a-redundant-check.patch
memrlimit-cgroup-mm-owner-callback-changes-to-add-task-info-memrlimit-fix-sleep-inside-sleeplock-in-mm_update_next_owner.patch
memrlimit-add-memrlimit-controller-accounting-and-control-memrlimit-improve-fork-and-error-handling.patch
memrlimit-improve-error-handling.patch
memrlimit-improve-error-handling-update.patch
memrlimit-handle-attach_task-failure-add-can_attach-callback.patch
memrlimit-handle-attach_task-failure-add-can_attach-callback-update.patch
mm-readahead-scan-lockless.patch
radix-tree-add-gang_lookup_slot-gang_lookup_slot_tag.patch
mm-speculative-page-references.patch
mm-speculative-page-references-fix.patch
mm-speculative-page-references-fix-fix.patch
mm-lockless-pagecache.patch
mm-spinlock-tree_lock.patch
powerpc-implement-pte_special.patch
mlock-mlocked-pages-are-unevictable-fix-4.patch
vmstat-mlocked-pages-statistics-fix-incorrect-mlocked-field-of-proc-meminfo.patch
prio_tree-debugging-patch.patch
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