Straight fwd conversion of i_mmap_lock and anon_vma->lock to mutexes. Signed-off-by: Peter Zijlstra --- arch/x86/mm/hugetlbpage.c | 4 ++-- fs/gfs2/main.c | 2 +- fs/hugetlbfs/inode.c | 4 ++-- fs/inode.c | 2 +- fs/nilfs2/btnode.c | 2 +- include/linux/fs.h | 2 +- include/linux/mm.h | 2 +- include/linux/rmap.h | 12 ++++++------ kernel/fork.c | 4 ++-- mm/filemap_xip.c | 4 ++-- mm/fremap.c | 4 ++-- mm/hugetlb.c | 12 ++++++------ mm/memory-failure.c | 4 ++-- mm/memory.c | 14 +++++++------- mm/mmap.c | 18 +++++++++--------- mm/mremap.c | 4 ++-- mm/rmap.c | 22 +++++++++++----------- 17 files changed, 58 insertions(+), 58 deletions(-) Index: linux-2.6/arch/x86/mm/hugetlbpage.c =================================================================== --- linux-2.6.orig/arch/x86/mm/hugetlbpage.c +++ linux-2.6/arch/x86/mm/hugetlbpage.c @@ -72,7 +72,7 @@ static void huge_pmd_share(struct mm_str if (!vma_shareable(vma, addr)) return; - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); vma_prio_tree_foreach(svma, &iter, &mapping->i_mmap, idx, idx) { if (svma == vma) continue; @@ -97,7 +97,7 @@ static void huge_pmd_share(struct mm_str put_page(virt_to_page(spte)); spin_unlock(&mm->page_table_lock); out: - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); } /* Index: linux-2.6/fs/hugetlbfs/inode.c =================================================================== --- linux-2.6.orig/fs/hugetlbfs/inode.c +++ linux-2.6/fs/hugetlbfs/inode.c @@ -429,10 +429,10 @@ static int hugetlb_vmtruncate(struct ino pgoff = offset >> PAGE_SHIFT; i_size_write(inode, offset); - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); if (!prio_tree_empty(&mapping->i_mmap)) hugetlb_vmtruncate_list(&mapping->i_mmap, pgoff); - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); truncate_hugepages(inode, offset); return 0; } Index: linux-2.6/fs/inode.c =================================================================== --- linux-2.6.orig/fs/inode.c +++ linux-2.6/fs/inode.c @@ -258,7 +258,7 @@ void inode_init_once(struct inode *inode INIT_LIST_HEAD(&inode->i_devices); INIT_RADIX_TREE(&inode->i_data.page_tree, GFP_ATOMIC); spin_lock_init(&inode->i_data.tree_lock); - spin_lock_init(&inode->i_data.i_mmap_lock); + mutex_init(&inode->i_data.i_mmap_lock); INIT_LIST_HEAD(&inode->i_data.private_list); spin_lock_init(&inode->i_data.private_lock); INIT_RAW_PRIO_TREE_ROOT(&inode->i_data.i_mmap); Index: linux-2.6/include/linux/fs.h =================================================================== --- linux-2.6.orig/include/linux/fs.h +++ linux-2.6/include/linux/fs.h @@ -627,7 +627,7 @@ struct address_space { unsigned int i_mmap_writable;/* count VM_SHARED mappings */ struct prio_tree_root i_mmap; /* tree of private and shared mappings */ struct list_head i_mmap_nonlinear;/*list VM_NONLINEAR mappings */ - spinlock_t i_mmap_lock; /* protect tree, count, list */ + struct mutex i_mmap_lock; /* protect tree, count, list */ unsigned int truncate_count; /* Cover race condition with truncate */ unsigned long nrpages; /* number of total pages */ pgoff_t writeback_index;/* writeback starts here */ Index: linux-2.6/include/linux/mm.h =================================================================== --- linux-2.6.orig/include/linux/mm.h +++ linux-2.6/include/linux/mm.h @@ -754,7 +754,7 @@ struct zap_details { struct address_space *check_mapping; /* Check page->mapping if set */ pgoff_t first_index; /* Lowest page->index to unmap */ pgoff_t last_index; /* Highest page->index to unmap */ - spinlock_t *i_mmap_lock; /* For unmap_mapping_range: */ + struct mutex *i_mmap_lock; /* For unmap_mapping_range: */ unsigned long truncate_count; /* Compare vm_truncate_count */ }; Index: linux-2.6/include/linux/rmap.h =================================================================== --- linux-2.6.orig/include/linux/rmap.h +++ linux-2.6/include/linux/rmap.h @@ -7,7 +7,7 @@ #include #include #include -#include +#include #include /* @@ -25,7 +25,7 @@ * pointing to this anon_vma once its vma list is empty. */ struct anon_vma { - spinlock_t lock; /* Serialize access to vma list */ + struct mutex lock; /* Serialize access to vma list */ struct anon_vma *root; /* Root of this anon_vma tree */ /* * The refcount is taken on an anon_vma when there is no @@ -93,24 +93,24 @@ static inline void vma_lock_anon_vma(str { struct anon_vma *anon_vma = vma->anon_vma; if (anon_vma) - spin_lock(&anon_vma->root->lock); + mutex_lock(&anon_vma->root->lock); } static inline void vma_unlock_anon_vma(struct vm_area_struct *vma) { struct anon_vma *anon_vma = vma->anon_vma; if (anon_vma) - spin_unlock(&anon_vma->root->lock); + mutex_unlock(&anon_vma->root->lock); } static inline void anon_vma_lock(struct anon_vma *anon_vma) { - spin_lock(&anon_vma->root->lock); + mutex_lock(&anon_vma->root->lock); } static inline void anon_vma_unlock(struct anon_vma *anon_vma) { - spin_unlock(&anon_vma->root->lock); + mutex_unlock(&anon_vma->root->lock); } /* Index: linux-2.6/kernel/fork.c =================================================================== --- linux-2.6.orig/kernel/fork.c +++ linux-2.6/kernel/fork.c @@ -368,7 +368,7 @@ static int dup_mmap(struct mm_struct *mm get_file(file); if (tmp->vm_flags & VM_DENYWRITE) atomic_dec(&inode->i_writecount); - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); if (tmp->vm_flags & VM_SHARED) mapping->i_mmap_writable++; tmp->vm_truncate_count = mpnt->vm_truncate_count; @@ -376,7 +376,7 @@ static int dup_mmap(struct mm_struct *mm /* insert tmp into the share list, just after mpnt */ vma_prio_tree_add(tmp, mpnt); flush_dcache_mmap_unlock(mapping); - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); } /* Index: linux-2.6/mm/filemap_xip.c =================================================================== --- linux-2.6.orig/mm/filemap_xip.c +++ linux-2.6/mm/filemap_xip.c @@ -183,7 +183,7 @@ __xip_unmap (struct address_space * mapp return; retry: - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) { mm = vma->vm_mm; address = vma->vm_start + @@ -201,7 +201,7 @@ retry: page_cache_release(page); } } - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); if (locked) { mutex_unlock(&xip_sparse_mutex); Index: linux-2.6/mm/fremap.c =================================================================== --- linux-2.6.orig/mm/fremap.c +++ linux-2.6/mm/fremap.c @@ -208,13 +208,13 @@ SYSCALL_DEFINE5(remap_file_pages, unsign } goto out; } - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); flush_dcache_mmap_lock(mapping); vma->vm_flags |= VM_NONLINEAR; vma_prio_tree_remove(vma, &mapping->i_mmap); vma_nonlinear_insert(vma, &mapping->i_mmap_nonlinear); flush_dcache_mmap_unlock(mapping); - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); } if (vma->vm_flags & VM_LOCKED) { Index: linux-2.6/mm/hugetlb.c =================================================================== --- linux-2.6.orig/mm/hugetlb.c +++ linux-2.6/mm/hugetlb.c @@ -2215,9 +2215,9 @@ void __unmap_hugepage_range(struct vm_ar void unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, unsigned long end, struct page *ref_page) { - spin_lock(&vma->vm_file->f_mapping->i_mmap_lock); + mutex_lock(&vma->vm_file->f_mapping->i_mmap_lock); __unmap_hugepage_range(vma, start, end, ref_page); - spin_unlock(&vma->vm_file->f_mapping->i_mmap_lock); + mutex_unlock(&vma->vm_file->f_mapping->i_mmap_lock); } /* @@ -2249,7 +2249,7 @@ static int unmap_ref_private(struct mm_s * this mapping should be shared between all the VMAs, * __unmap_hugepage_range() is called as the lock is already held */ - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); vma_prio_tree_foreach(iter_vma, &iter, &mapping->i_mmap, pgoff, pgoff) { /* Do not unmap the current VMA */ if (iter_vma == vma) @@ -2267,7 +2267,7 @@ static int unmap_ref_private(struct mm_s address, address + huge_page_size(h), page); } - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); return 1; } @@ -2685,7 +2685,7 @@ void hugetlb_change_protection(struct vm BUG_ON(address >= end); flush_cache_range(vma, address, end); - spin_lock(&vma->vm_file->f_mapping->i_mmap_lock); + mutex_lock(&vma->vm_file->f_mapping->i_mmap_lock); spin_lock(&mm->page_table_lock); for (; address < end; address += huge_page_size(h)) { ptep = huge_pte_offset(mm, address); @@ -2700,7 +2700,7 @@ void hugetlb_change_protection(struct vm } } spin_unlock(&mm->page_table_lock); - spin_unlock(&vma->vm_file->f_mapping->i_mmap_lock); + mutex_unlock(&vma->vm_file->f_mapping->i_mmap_lock); flush_tlb_range(vma, start, end); } Index: linux-2.6/mm/memory-failure.c =================================================================== --- linux-2.6.orig/mm/memory-failure.c +++ linux-2.6/mm/memory-failure.c @@ -422,7 +422,7 @@ static void collect_procs_file(struct pa */ read_lock(&tasklist_lock); - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); for_each_process(tsk) { pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT); @@ -442,7 +442,7 @@ static void collect_procs_file(struct pa add_to_kill(tsk, page, vma, to_kill, tkc); } } - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); read_unlock(&tasklist_lock); } Index: linux-2.6/mm/memory.c =================================================================== --- linux-2.6.orig/mm/memory.c +++ linux-2.6/mm/memory.c @@ -1183,7 +1183,7 @@ unsigned long unmap_vmas(struct mmu_gath { long zap_work = ZAP_BLOCK_SIZE; unsigned long start = start_addr; - spinlock_t *i_mmap_lock = details? details->i_mmap_lock: NULL; + struct mutex *i_mmap_lock = details ? details->i_mmap_lock : NULL; struct mm_struct *mm = vma->vm_mm; mmu_notifier_invalidate_range_start(mm, start_addr, end_addr); @@ -1233,7 +1233,7 @@ unsigned long unmap_vmas(struct mmu_gath } if (need_resched() || - (i_mmap_lock && spin_needbreak(i_mmap_lock))) { + (i_mmap_lock && mutex_is_contended(i_mmap_lock))) { if (i_mmap_lock) goto out; cond_resched(); @@ -2517,7 +2517,7 @@ again: restart_addr = zap_page_range(vma, start_addr, end_addr - start_addr, details); - need_break = need_resched() || spin_needbreak(details->i_mmap_lock); + need_break = need_resched() || mutex_is_contended(details->i_mmap_lock); if (restart_addr >= end_addr) { /* We have now completed this vma: mark it so */ @@ -2531,9 +2531,9 @@ again: goto again; } - spin_unlock(details->i_mmap_lock); + mutex_unlock(details->i_mmap_lock); cond_resched(); - spin_lock(details->i_mmap_lock); + mutex_lock(details->i_mmap_lock); return -EINTR; } @@ -2629,7 +2629,7 @@ void unmap_mapping_range(struct address_ details.last_index = ULONG_MAX; details.i_mmap_lock = &mapping->i_mmap_lock; - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); /* Protect against endless unmapping loops */ mapping->truncate_count++; @@ -2644,7 +2644,7 @@ void unmap_mapping_range(struct address_ unmap_mapping_range_tree(&mapping->i_mmap, &details); if (unlikely(!list_empty(&mapping->i_mmap_nonlinear))) unmap_mapping_range_list(&mapping->i_mmap_nonlinear, &details); - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); } EXPORT_SYMBOL(unmap_mapping_range); Index: linux-2.6/mm/mmap.c =================================================================== --- linux-2.6.orig/mm/mmap.c +++ linux-2.6/mm/mmap.c @@ -216,9 +216,9 @@ void unlink_file_vma(struct vm_area_stru if (file) { struct address_space *mapping = file->f_mapping; - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); __remove_shared_vm_struct(vma, file, mapping); - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); } } @@ -449,7 +449,7 @@ static void vma_link(struct mm_struct *m mapping = vma->vm_file->f_mapping; if (mapping) { - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); vma->vm_truncate_count = mapping->truncate_count; } vma_lock_anon_vma(vma); @@ -459,7 +459,7 @@ static void vma_link(struct mm_struct *m vma_unlock_anon_vma(vma); if (mapping) - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); mm->map_count++; validate_mm(mm); @@ -558,7 +558,7 @@ again: remove_next = 1 + (end > next-> mapping = file->f_mapping; if (!(vma->vm_flags & VM_NONLINEAR)) root = &mapping->i_mmap; - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); if (importer && vma->vm_truncate_count != next->vm_truncate_count) { /* @@ -632,7 +632,7 @@ again: remove_next = 1 + (end > next-> if (anon_vma) anon_vma_unlock(anon_vma); if (mapping) - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); if (remove_next) { if (file) { @@ -2489,7 +2489,7 @@ static void vm_lock_anon_vma(struct mm_s * The LSB of head.next can't change from under us * because we hold the mm_all_locks_mutex. */ - spin_lock_nest_lock(&anon_vma->root->lock, &mm->mmap_sem); + mutex_lock_nest_lock(&anon_vma->root->lock, &mm->mmap_sem); /* * We can safely modify head.next after taking the * anon_vma->root->lock. If some other vma in this mm shares @@ -2519,7 +2519,7 @@ static void vm_lock_mapping(struct mm_st */ if (test_and_set_bit(AS_MM_ALL_LOCKS, &mapping->flags)) BUG(); - spin_lock_nest_lock(&mapping->i_mmap_lock, &mm->mmap_sem); + mutex_lock_nest_lock(&mapping->i_mmap_lock, &mm->mmap_sem); } } @@ -2618,7 +2618,7 @@ static void vm_unlock_mapping(struct add * AS_MM_ALL_LOCKS can't change to 0 from under us * because we hold the mm_all_locks_mutex. */ - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); if (!test_and_clear_bit(AS_MM_ALL_LOCKS, &mapping->flags)) BUG(); Index: linux-2.6/mm/mremap.c =================================================================== --- linux-2.6.orig/mm/mremap.c +++ linux-2.6/mm/mremap.c @@ -90,7 +90,7 @@ static void move_ptes(struct vm_area_str * and we propagate stale pages into the dst afterward. */ mapping = vma->vm_file->f_mapping; - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); if (new_vma->vm_truncate_count && new_vma->vm_truncate_count != vma->vm_truncate_count) new_vma->vm_truncate_count = 0; @@ -122,7 +122,7 @@ static void move_ptes(struct vm_area_str pte_unmap_nested(new_pte - 1); pte_unmap_unlock(old_pte - 1, old_ptl); if (mapping) - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); mmu_notifier_invalidate_range_end(vma->vm_mm, old_start, old_end); } Index: linux-2.6/mm/rmap.c =================================================================== --- linux-2.6.orig/mm/rmap.c +++ linux-2.6/mm/rmap.c @@ -300,7 +300,7 @@ static void anon_vma_ctor(void *data) { struct anon_vma *anon_vma = data; - spin_lock_init(&anon_vma->lock); + mutex_init(&anon_vma->lock); atomic_set(&anon_vma->refcount, 0); INIT_LIST_HEAD(&anon_vma->head); } @@ -612,7 +612,7 @@ static int page_referenced_file(struct p */ BUG_ON(!PageLocked(page)); - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); /* * i_mmap_lock does not stabilize mapcount at all, but mapcount @@ -637,7 +637,7 @@ static int page_referenced_file(struct p break; } - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); return referenced; } @@ -724,7 +724,7 @@ static int page_mkclean_file(struct addr BUG_ON(PageAnon(page)); - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) { if (vma->vm_flags & VM_SHARED) { unsigned long address = vma_address(page, vma); @@ -733,7 +733,7 @@ static int page_mkclean_file(struct addr ret += page_mkclean_one(page, vma, address); } } - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); return ret; } @@ -1283,7 +1283,7 @@ static int try_to_unmap_file(struct page unsigned long max_nl_size = 0; unsigned int mapcount; - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) { unsigned long address = vma_address(page, vma); if (address == -EFAULT) @@ -1329,7 +1329,7 @@ static int try_to_unmap_file(struct page mapcount = page_mapcount(page); if (!mapcount) goto out; - cond_resched_lock(&mapping->i_mmap_lock); + cond_resched(); max_nl_size = (max_nl_size + CLUSTER_SIZE - 1) & CLUSTER_MASK; if (max_nl_cursor == 0) @@ -1351,7 +1351,7 @@ static int try_to_unmap_file(struct page } vma->vm_private_data = (void *) max_nl_cursor; } - cond_resched_lock(&mapping->i_mmap_lock); + cond_resched(); max_nl_cursor += CLUSTER_SIZE; } while (max_nl_cursor <= max_nl_size); @@ -1363,7 +1363,7 @@ static int try_to_unmap_file(struct page list_for_each_entry(vma, &mapping->i_mmap_nonlinear, shared.vm_set.list) vma->vm_private_data = NULL; out: - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); return ret; } @@ -1478,7 +1478,7 @@ static int rmap_walk_file(struct page *p if (!mapping) return ret; - spin_lock(&mapping->i_mmap_lock); + mutex_lock(&mapping->i_mmap_lock); vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) { unsigned long address = vma_address(page, vma); if (address == -EFAULT) @@ -1492,7 +1492,7 @@ static int rmap_walk_file(struct page *p * never contain migration ptes. Decide what to do about this * limitation to linear when we need rmap_walk() on nonlinear. */ - spin_unlock(&mapping->i_mmap_lock); + mutex_unlock(&mapping->i_mmap_lock); return ret; } Index: linux-2.6/fs/gfs2/main.c =================================================================== --- linux-2.6.orig/fs/gfs2/main.c +++ linux-2.6/fs/gfs2/main.c @@ -61,7 +61,7 @@ static void gfs2_init_gl_aspace_once(voi memset(mapping, 0, sizeof(*mapping)); INIT_RADIX_TREE(&mapping->page_tree, GFP_ATOMIC); spin_lock_init(&mapping->tree_lock); - spin_lock_init(&mapping->i_mmap_lock); + mutex_init(&mapping->i_mmap_lock); INIT_LIST_HEAD(&mapping->private_list); spin_lock_init(&mapping->private_lock); INIT_RAW_PRIO_TREE_ROOT(&mapping->i_mmap); Index: linux-2.6/fs/nilfs2/btnode.c =================================================================== --- linux-2.6.orig/fs/nilfs2/btnode.c +++ linux-2.6/fs/nilfs2/btnode.c @@ -43,7 +43,7 @@ void nilfs_btnode_cache_init_once(struct INIT_LIST_HEAD(&btnc->private_list); spin_lock_init(&btnc->private_lock); - spin_lock_init(&btnc->i_mmap_lock); + mutex_init(&btnc->i_mmap_lock); INIT_RAW_PRIO_TREE_ROOT(&btnc->i_mmap); INIT_LIST_HEAD(&btnc->i_mmap_nonlinear); } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/