Eric Dumazet 3a7ad0634f Revert "packet: switch kvzalloc to allocate memory" ...

This reverts commit 71e4128620.

mmap()/munmap() can not be backed by kmalloced pages :

We fault in :

    VM_BUG_ON_PAGE(PageSlab(page), page);

    unmap_single_vma+0x8a/0x110
    unmap_vmas+0x4b/0x90
    unmap_region+0xc9/0x140
    do_munmap+0x274/0x360
    vm_munmap+0x81/0xc0
    SyS_munmap+0x2b/0x40
    do_syscall_64+0x13e/0x1c0
    entry_SYSCALL_64_after_hwframe+0x42/0xb7

Fixes: 71e4128620 ("packet: switch kvzalloc to allocate memory")
Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: John Sperbeck <[email protected]>
Bisected-by: John Sperbeck <[email protected]>
Cc: Zhang Yu <[email protected]>
Cc: Li RongQing <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

2018-08-31 23:00:28 -07:00

..

af_packet.c

Revert "packet: switch kvzalloc to allocate memory"

2018-08-31 23:00:28 -07:00

diag.c

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internal.h

Revert "packet: switch kvzalloc to allocate memory"

2018-08-31 23:00:28 -07:00

Kconfig

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Makefile

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