Messages in this thread | | | Date | Thu, 10 Aug 2017 05:47:40 +0800 | From | kbuild test robot <> | Subject | [rcu:mmap_sem.2017.08.09a 6/16] mm/internal.h:59:26: error: 'struct vm_fault' has no member named 'sequence' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git mmap_sem.2017.08.09a head: 39782fbd9252a3ace9b49a55f4dd2a41a6ced31f commit: 1b801585f6b03276db9722dc725a50ca11439467 [6/16] mm: RCU free VMAs config: i386-tinyconfig (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 1b801585f6b03276db9722dc725a50ca11439467 # save the attached .config to linux build tree make ARCH=i386
Note: the rcu/mmap_sem.2017.08.09a HEAD 39782fbd9252a3ace9b49a55f4dd2a41a6ced31f builds fine. It only hurts bisectibility.
All errors (new ones prefixed by >>):
In file included from mm/filemap.c:39:0: mm/internal.h: In function 'vma_has_changed': >> mm/internal.h:59:26: error: 'struct vm_fault' has no member named 'sequence' return ret || seq != vmf->sequence; ^~ -- In file included from lib/vsprintf.c:40:0: lib/../mm/internal.h: In function 'vma_has_changed': >> lib/../mm/internal.h:59:26: error: 'struct vm_fault' has no member named 'sequence' return ret || seq != vmf->sequence; ^~
vim +59 mm/internal.h
44 45 extern struct vm_area_struct *find_vma_srcu(struct mm_struct *mm, 46 unsigned long addr); 47 48 static inline bool vma_has_changed(struct vm_fault *vmf) 49 { 50 int ret = RB_EMPTY_NODE(&vmf->vma->vm_rb); 51 unsigned seq = ACCESS_ONCE(vmf->vma->vm_sequence.sequence); 52 53 /* 54 * Matches both the wmb in write_seqlock_{begin,end}() and 55 * the wmb in vma_rb_erase(). 56 */ 57 smp_rmb(); 58 > 59 return ret || seq != vmf->sequence; 60 } 61
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