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| author | Dmitry Kalinkin <dmitry.kalinkin@gmail.com> | 2015-05-21 19:19:13 +0800 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2015-05-21 19:19:13 +0800 |
| commit | 4c8f20bb8e0ba6eecf62958bbf0502a2dc445ce6 (patch) | |
| tree | 7eac76954e0a70d555a8a75ebb13d7aef8b9d6d3 /scripts/coccinelle/api | |
| parent | 74de120d8096f72bdf95aba7234428c798d931cd (diff) | |
| download | linux-4c8f20bb8e0ba6eecf62958bbf0502a2dc445ce6.tar.bz2 | |
coccinelle: api: add vma_pages.cocci
This semantic patch replaces explicit computations of vma page count
with explicit function call.
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/coccinelle/api')
| -rw-r--r-- | scripts/coccinelle/api/vma_pages.cocci | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/scripts/coccinelle/api/vma_pages.cocci b/scripts/coccinelle/api/vma_pages.cocci new file mode 100644 index 000000000000..3e52e11ea1dc --- /dev/null +++ b/scripts/coccinelle/api/vma_pages.cocci @@ -0,0 +1,60 @@ +/// +/// Use vma_pages function on vma object instead of explicit computation. +/// +// Confidence: High +// Keywords: vma_pages vma +// Comment: Based on resource_size.cocci + +virtual context +virtual patch +virtual org +virtual report + +//---------------------------------------------------------- +// For context mode +//---------------------------------------------------------- + +@r_context depends on context && !patch && !org && !report@ +struct vm_area_struct *vma; +@@ + +* (vma->vm_end - vma->vm_start) >> PAGE_SHIFT + +//---------------------------------------------------------- +// For patch mode +//---------------------------------------------------------- + +@r_patch depends on !context && patch && !org && !report@ +struct vm_area_struct *vma; +@@ + +- ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) ++ vma_pages(vma) + +//---------------------------------------------------------- +// For org mode +//---------------------------------------------------------- + +@r_org depends on !context && !patch && (org || report)@ +struct vm_area_struct *vma; +position p; +@@ + + (vma->vm_end@p - vma->vm_start) >> PAGE_SHIFT + +@script:python depends on report@ +p << r_org.p; +x << r_org.vma; +@@ + +msg="WARNING: Consider using vma_pages helper on %s" % (x) +coccilib.report.print_report(p[0], msg) + +@script:python depends on org@ +p << r_org.p; +x << r_org.vma; +@@ + +msg="WARNING: Consider using vma_pages helper on %s" % (x) +msg_safe=msg.replace("[","@(").replace("]",")") +coccilib.org.print_todo(p[0], msg_safe) |