tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: c6b169e6ffb962068153bd92b0c4ecbd731a122f
commit: cbba4e22584984bffccd07e0801fd2b8ec1ecf5f [6252/6518] Move /proc/kpageidle to /sys/kernel/mm/page_idle/bitmap
reproduce:
# apt-get install sparse
git checkout cbba4e22584984bffccd07e0801fd2b8ec1ecf5f
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
>> include/linux/mmu_notifier.h:247:19: sparse: context imbalance in 'page_idle_clear_pte_refs_one' - unexpected unlock
vim +/page_idle_clear_pte_refs_one +247 include/linux/mmu_notifier.h
cddb8a5c Andrea Arcangeli 2008-07-28 231
cddb8a5c Andrea Arcangeli 2008-07-28 232 static inline void mmu_notifier_release(struct mm_struct *mm)
cddb8a5c Andrea Arcangeli 2008-07-28 233 {
cddb8a5c Andrea Arcangeli 2008-07-28 234 if (mm_has_notifiers(mm))
cddb8a5c Andrea Arcangeli 2008-07-28 235 __mmu_notifier_release(mm);
cddb8a5c Andrea Arcangeli 2008-07-28 236 }
cddb8a5c Andrea Arcangeli 2008-07-28 237
cddb8a5c Andrea Arcangeli 2008-07-28 238 static inline int mmu_notifier_clear_flush_young(struct mm_struct *mm,
57128468 Andres Lagar-Cavilla 2014-09-22 239 unsigned long start,
57128468 Andres Lagar-Cavilla 2014-09-22 240 unsigned long end)
cddb8a5c Andrea Arcangeli 2008-07-28 241 {
cddb8a5c Andrea Arcangeli 2008-07-28 242 if (mm_has_notifiers(mm))
57128468 Andres Lagar-Cavilla 2014-09-22 243 return __mmu_notifier_clear_flush_young(mm, start, end);
cddb8a5c Andrea Arcangeli 2008-07-28 244 return 0;
cddb8a5c Andrea Arcangeli 2008-07-28 245 }
cddb8a5c Andrea Arcangeli 2008-07-28 246
632116f6 Vladimir Davydov 2015-08-06 @247 static inline int mmu_notifier_clear_young(struct mm_struct *mm,
632116f6 Vladimir Davydov 2015-08-06 248 unsigned long start,
632116f6 Vladimir Davydov 2015-08-06 249 unsigned long end)
632116f6 Vladimir Davydov 2015-08-06 250 {
632116f6 Vladimir Davydov 2015-08-06 251 if (mm_has_notifiers(mm))
632116f6 Vladimir Davydov 2015-08-06 252 return __mmu_notifier_clear_young(mm, start, end);
632116f6 Vladimir Davydov 2015-08-06 253 return 0;
632116f6 Vladimir Davydov 2015-08-06 254 }
632116f6 Vladimir Davydov 2015-08-06 255
:::::: The code at line 247 was first introduced by commit
:::::: 632116f6446375758508e1feb402a16265410ed2 mmu-notifier: add clear_young callback
:::::: TO: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
:::::: CC: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
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