mm/mremap: account memory on do_munmap() failure
Patch series "mremap: move_vma() fixes". This patch (of 6): move_vma() copies VMA without adding it to account, then unmaps old part of VMA. On failure it unmaps the new VMA. With hacks accounting in munmap is disabled as it's a copy of existing VMA. Account the memory on munmap() failure which was previously copied into a new VMA. Link: https://lkml.kernel.org/r/20201013013416.390574-1-dima@arista.com Link: https://lkml.kernel.org/r/20201013013416.390574-2-dima@arista.com Fixes: commit e2ea83742133 ("[PATCH] mremap: move_vma fixes and cleanup") Signed-off-by:Dmitry Safonov <dima@arista.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Andy Lutomirski <luto@kernel.org> Cc: Brian Geffon <bgeffon@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Will Deacon <will@kernel.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Ralph Campbell <rcampbell@nvidia.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
parent
0966aeb4
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