The patch titled Subject: mm/swapfile.c: fix swapon frontswap_map memory leak on error has been added to the -mm tree. Its filename is mm-swapfile-fix-swapon-frontswap_map-memory-leak-on-error.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-swapfile-fix-swapon-frontswap_map-memory-leak-on-error.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-swapfile-fix-swapon-frontswap_map-memory-leak-on-error.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: David Rientjes <rientjes@xxxxxxxxxx> Subject: mm/swapfile.c: fix swapon frontswap_map memory leak on error Free frontswap_map if an error is encountered before enable_swap_info(). Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> Reviewed-by: "Huang, Ying" <ying.huang@xxxxxxxxx> Cc: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Cc: Hugh Dickins <hughd@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> [4.12+] Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/swapfile.c | 1 + 1 file changed, 1 insertion(+) diff -puN mm/swapfile.c~mm-swapfile-fix-swapon-frontswap_map-memory-leak-on-error mm/swapfile.c --- a/mm/swapfile.c~mm-swapfile-fix-swapon-frontswap_map-memory-leak-on-error +++ a/mm/swapfile.c @@ -3291,6 +3291,7 @@ bad_swap: spin_unlock(&swap_lock); vfree(swap_map); kvfree(cluster_info); + kvfree(frontswap_map); if (swap_file) { if (inode && S_ISREG(inode->i_mode)) { inode_unlock(inode); _ Patches currently in -mm which might be from rientjes@xxxxxxxxxx are mm-oom-let-oom_reap_task-and-exit_mmap-to-run-concurrently-fix-2.patch mm-compaction-kcompactd-should-not-ignore-pageblock-skip.patch mm-compaction-persistently-skip-hugetlbfs-pageblocks.patch mm-compaction-persistently-skip-hugetlbfs-pageblocks-fix.patch mm-swapfile-fix-swapon-frontswap_map-memory-leak-on-error.patch fs-proc-unconditional-cond_resched-when-reading-smaps.patch