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| author | Lorenzo Stoakes <lorenzo.stoakes@oracle.com> | 2025-03-10 23:50:35 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-03-18 08:06:41 +0300 |
| commit | 85ea6bdd88a27317875088b54119bec209c6c09c (patch) | |
| tree | accb51de9f16b54a682abd23c522df97e273a581 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 937582ee8e8d227c30ec147629a0179131feaa80 (diff) | |
| download | linux-85ea6bdd88a27317875088b54119bec209c6c09c.tar.xz | |
mm/mremap: refactor mremap() system call implementation
Place checks into a separate function so the mremap() system call is less
egregiously long, remove unnecessary mremap_to() offset_in_page() check
and just check that earlier so we keep all such basic checks together.
Separate out the VMA in-place expansion, hugetlb and expand/move logic
into separate, readable functions.
De-duplicate code where possible, add comments and ensure that all error
handling explicitly specifies the error at the point of it occurring
rather than setting a prefixed error value and implicitly setting (which
is bug prone).
This lays the groundwork for subsequent patches further simplifying and
extending the mremap() implementation.
Link: https://lkml.kernel.org/r/fc4a925396dc3cc36791ec92c4d329209e816308.1741639347.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions