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authorLinus Torvalds <torvalds@linux-foundation.org>2012-04-20 17:13:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-20 17:29:13 -0700
commit6be5ceb02e98eaf6cfc4f8b12a896d04023f340d (patch)
treef34de1392300bbf63549f4eeb20f7606d6f7b1f9 /drivers/gpu/stub
parenta46ef99d80817a167477ed1c8b4d90ee0c2e726f (diff)
VM: add "vm_mmap()" helper function
This continues the theme started with vm_brk() and vm_munmap(): vm_mmap() does the same thing as do_mmap(), but additionally does the required VM locking. This uninlines (and rewrites it to be clearer) do_mmap(), which sadly duplicates it in mm/mmap.c and mm/nommu.c. But that way we don't have to export our internal do_mmap_pgoff() function. Some day we hopefully don't have to export do_mmap() either, if all modular users can become the simpler vm_mmap() instead. We're actually very close to that already, with the notable exception of the (broken) use in i810, and a couple of stragglers in binfmt_elf. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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