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Date: Sun, 17 May 2015 03:06:27 +0300 From: Dmitry Kalinkin <dmitry.kalinkin@...il.com> To: linux-kernel@...r.kernel.org, cocci@...teme.lip6.fr Cc: Julia Lawall <Julia.Lawall@...6.fr>, Gilles Muller <Gilles.Muller@...6.fr>, Nicolas Palix <nicolas.palix@...g.fr>, Michal Marek <mmarek@...e.cz>, Dmitry Kalinkin <dmitry.kalinkin@...il.com> Subject: [PATCH] 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@...il.com> --- scripts/coccinelle/api/vma_pages.cocci | 66 ++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 scripts/coccinelle/api/vma_pages.cocci diff --git a/scripts/coccinelle/api/vma_pages.cocci b/scripts/coccinelle/api/vma_pages.cocci new file mode 100644 index 0000000..2b7a748 --- /dev/null +++ b/scripts/coccinelle/api/vma_pages.cocci @@ -0,0 +1,66 @@ +/// Use vma_pages function on vma object instead of explicit computation. +// Confidence: High +// Keywords: vma_pages vma + +// Based on resource_size.cocci + +virtual context +virtual patch +virtual org +virtual report + +//---------------------------------------------------------- +// For context mode +//---------------------------------------------------------- + +@...ontext depends on context && !patch && !org@ +struct vm_area_struct *vma; +@@ + +* (vma->vm_end - vma->vm_start) >> PAGE_SHIFT + +//---------------------------------------------------------- +// For patch mode +//---------------------------------------------------------- + +@...atch1 depends on !context && patch && !org@ +struct vm_area_struct *vma; +@@ + +- ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT) ++ vma_pages(vma) + +@...atch2 depends on !context && patch && !org@ +struct vm_area_struct *vma; +@@ + +- (vma->vm_end - vma->vm_start) >> PAGE_SHIFT ++ vma_pages(vma) + +//---------------------------------------------------------- +// For org mode +//---------------------------------------------------------- + +@...rg depends on !context && !patch && (org || report)@ +struct vm_area_struct *vma; +position p; +@@ + + (vma->vm_end@p - vma->vm_start) >> PAGE_SHIFT + +@...ipt:python depends on report@ +p << r_org.p; +x << r_org.vma; +@@ + +msg="ERROR: Missing vma_pages with %s" % (x) +coccilib.report.print_report(p[0], msg) + +@...ipt:python depends on org@ +p << r_org.p; +x << r_org.vma; +@@ + +msg="ERROR with %s" % (x) +msg_safe=msg.replace("[","@(").replace("]",")") +coccilib.org.print_todo(p[0], msg_safe) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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