diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/fs.h | 1 | ||||
| -rw-r--r-- | include/linux/mm.h | 1 | ||||
| -rw-r--r-- | include/linux/pagemap.h | 13 |
3 files changed, 14 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 6e765d28841b..3ca9420f627e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -419,6 +419,7 @@ struct address_space { struct mutex i_mmap_mutex; /* protect tree, count, list */ /* Protected by tree_lock together with the radix tree */ unsigned long nrpages; /* number of total pages */ + unsigned long nrshadows; /* number of shadow entries */ pgoff_t writeback_index;/* writeback starts here */ const struct address_space_operations *a_ops; /* methods */ unsigned long flags; /* error bits/gfp mask */ diff --git a/include/linux/mm.h b/include/linux/mm.h index b1331aff769c..58d6ddba5db3 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1834,6 +1834,7 @@ vm_unmapped_area(struct vm_unmapped_area_info *info) extern void truncate_inode_pages(struct address_space *, loff_t); extern void truncate_inode_pages_range(struct address_space *, loff_t lstart, loff_t lend); +extern void truncate_inode_pages_final(struct address_space *); /* generic vm_area_ops exported for stackable file systems */ extern int filemap_fault(struct vm_area_struct *, struct vm_fault *); diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 493bfd85214e..ff43253f568a 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -25,6 +25,7 @@ enum mapping_flags { AS_MM_ALL_LOCKS = __GFP_BITS_SHIFT + 2, /* under mm_take_all_locks() */ AS_UNEVICTABLE = __GFP_BITS_SHIFT + 3, /* e.g., ramdisk, SHM_LOCK */ AS_BALLOON_MAP = __GFP_BITS_SHIFT + 4, /* balloon page special map */ + AS_EXITING = __GFP_BITS_SHIFT + 5, /* final truncate in progress */ }; static inline void mapping_set_error(struct address_space *mapping, int error) @@ -69,6 +70,16 @@ static inline int mapping_balloon(struct address_space *mapping) return mapping && test_bit(AS_BALLOON_MAP, &mapping->flags); } +static inline void mapping_set_exiting(struct address_space *mapping) +{ + set_bit(AS_EXITING, &mapping->flags); +} + +static inline int mapping_exiting(struct address_space *mapping) +{ + return test_bit(AS_EXITING, &mapping->flags); +} + static inline gfp_t mapping_gfp_mask(struct address_space * mapping) { return (__force gfp_t)mapping->flags & __GFP_BITS_MASK; @@ -547,7 +558,7 @@ int add_to_page_cache_locked(struct page *page, struct address_space *mapping, int add_to_page_cache_lru(struct page *page, struct address_space *mapping, pgoff_t index, gfp_t gfp_mask); extern void delete_from_page_cache(struct page *page); -extern void __delete_from_page_cache(struct page *page); +extern void __delete_from_page_cache(struct page *page, void *shadow); int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask); /* |