A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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android_kernel_motorola_sm6375/drivers/uio
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Filename Latest commit message Latest commit date
Konstantin Khlebnikov 314e51b985 mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 
A long time ago, in v2.4, VM_RESERVED kept swapout process off VMA,
currently it lost original meaning but still has some effects:

 | effect                 | alternative flags
-+------------------------+---------------------------------------------
1| account as reserved_vm | VM_IO
2| skip in core dump      | VM_IO, VM_DONTDUMP
3| do not merge or expand | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP
4| do not mlock           | VM_IO, VM_DONTEXPAND, VM_HUGETLB, VM_PFNMAP

This patch removes reserved_vm counter from mm_struct.  Seems like nobody
cares about it, it does not exported into userspace directly, it only
reduces total_vm showed in proc.

Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.

remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.

[[email protected]: drivers/vfio/pci/vfio_pci.c fixup]
Signed-off-by: Konstantin Khlebnikov <[email protected]>
Cc: Alexander Viro <[email protected]>
Cc: Carsten Otte <[email protected]>
Cc: Chris Metcalf <[email protected]>
Cc: Cyrill Gorcunov <[email protected]>
Cc: Eric Paris <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Morris <[email protected]>
Cc: Jason Baron <[email protected]>
Cc: Kentaro Takeda <[email protected]>
Cc: Matt Helsley <[email protected]>
Cc: Nick Piggin <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Robert Richter <[email protected]>
Cc: Suresh Siddha <[email protected]>
Cc: Tetsuo Handa <[email protected]>
Cc: Venkatesh Pallipadi <[email protected]>
Acked-by: Linus Torvalds <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
2012-10-09 16:22:19 +09:00
..
Kconfig UIO: add PRUSS UIO driver support 2011-03-07 13:10:27 -08:00
Makefile UIO: add PRUSS UIO driver support 2011-03-07 13:10:27 -08:00
uio.c mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
uio_aec.c
uio_cif.c uio: Change mail address of Hans J. Koch 2010-11-10 16:57:11 -08:00
uio_netx.c uio_netx: Add support for netPLC cards 2011-04-19 16:56:02 -07:00
uio_pci_generic.c uio: Convert uio_generic_pci to new intx masking API 2012-01-06 12:10:35 -08:00
uio_pdrv.c uio: convert drivers/uio/* to use module_platform_driver() 2011-11-26 20:12:48 -08:00
uio_pdrv_genirq.c uio_pdrv_genirq: get irq through platform resource if not set otherwise 2012-05-15 08:44:58 -07:00
uio_pruss.c uio: convert drivers/uio/* to use module_platform_driver() 2011-11-26 20:12:48 -08:00
uio_sercos3.c uio: Remove IRQF_DISABLED from uio_sercos3.c 2010-08-05 13:53:33 -07:00