nommu: pass through vma iterator to shrink_vma()

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Rename the function to vmi_shrink_vma() indicate it takes the vma
iterator.  Use the iterator to preallocate and drop the delete function. 
The maple tree is able to do the modification easier than the linked list
and rbtree, so just clear the necessary area in the tree.

add_vma_to_mm() is no longer used, so drop this function.

vmi_add_vma_to_mm() is now only used once, so inline this function into
do_mmap().

Link: https://lkml.kernel.org/r/20230120162650.984577-29-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Liam R. Howlett 2023-01-20 11:26:29 -05:00 • committed by Andrew Morton

parent 47d9644de9

commit 07f1bc5ad7

1 changed files with 17 additions and 46 deletions

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mm/nommu.c

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