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mm/mmap: Don't use __vma_adjust() in shift_arg_pages()
authorLiam R. Howlett <Liam.Howlett@oracle.com>
Wed, 10 Aug 2022 21:24:05 +0000 (17:24 -0400)
committerLiam R. Howlett <Liam.Howlett@oracle.com>
Mon, 15 Aug 2022 14:46:43 +0000 (10:46 -0400)
commit79a46fab832212778d6a3196da7d78cdb3e12c29
tree2acd2772f75426bb690fc1c9ee767900d5eaad2btree
parent8aa12caeb09bbe844ae8a3906710a53a32cae4e9commit | diff
mm/mmap: Don't use __vma_adjust() in shift_arg_pages()

Introduce shrink_vma() which uses the lock_vma() and unlock_vma()
functions to reduce the vma coverage.

Convert shift_arg_pages() to use expand_vma() and the new shrink_vma()
function.  Remove shrink_vma() support from __vma_adjust() since
shift_arg_pages() is the only user that shrinks a VMA in this way.

Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
fs/exec.c diff | blob | history
include/linux/mm.h diff | blob | history
mm/mmap.c diff | blob | history
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