diff options
| -rw-r--r-- | include/linux/swap.h | 6 | ||||
| -rw-r--r-- | mm/memory.c | 3 | ||||
| -rw-r--r-- | mm/shmem.c | 28 | ||||
| -rw-r--r-- | mm/swap_state.c | 18 | ||||
| -rw-r--r-- | mm/swapfile.c | 3 |
5 files changed, 30 insertions, 28 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 9fa1aef1b82..16fd1209e9f 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -228,9 +228,9 @@ extern int move_from_swap_cache(struct page *, unsigned long, extern void free_page_and_swap_cache(struct page *); extern void free_pages_and_swap_cache(struct page **, int); extern struct page *lookup_swap_cache(swp_entry_t); -extern struct page *read_swap_cache_async(swp_entry_t, +extern struct page *read_swap_cache_async(swp_entry_t, gfp_t, struct vm_area_struct *vma, unsigned long addr); -extern struct page *swapin_readahead(swp_entry_t, +extern struct page *swapin_readahead(swp_entry_t, gfp_t, struct vm_area_struct *vma, unsigned long addr); /* linux/mm/swapfile.c */ @@ -306,7 +306,7 @@ static inline void swap_free(swp_entry_t swp) { } -static inline struct page *swapin_readahead(swp_entry_t swp, +static inline struct page *swapin_readahead(swp_entry_t swp, gfp_t gfp_mask, struct vm_area_struct *vma, unsigned long addr) { return NULL; diff --git a/mm/memory.c b/mm/memory.c index ccc9403d535..bc137751da7 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2007,7 +2007,8 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, page = lookup_swap_cache(entry); if (!page) { grab_swap_token(); /* Contend for token _before_ read-in */ - page = swapin_readahead(entry, vma, address); + page = swapin_readahead(entry, + GFP_HIGHUSER_MOVABLE, vma, address); if (!page) { /* * Back out if somebody else faulted in this pte diff --git a/mm/shmem.c b/mm/shmem.c index 3a22a8f7933..55b696aa3dd 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1025,8 +1025,8 @@ out: return err; } -static struct page *shmem_swapin(struct shmem_inode_info *info, - swp_entry_t entry, unsigned long idx) +static struct page *shmem_swapin(swp_entry_t entry, gfp_t gfp, + struct shmem_inode_info *info, unsigned long idx) { struct vm_area_struct pvma; struct page *page; @@ -1036,13 +1036,13 @@ static struct page *shmem_swapin(struct shmem_inode_info *info, pvma.vm_pgoff = idx; pvma.vm_ops = NULL; pvma.vm_policy = mpol_shared_policy_lookup(&info->policy, idx); - page = swapin_readahead(entry, &pvma, 0); + page = swapin_readahead(entry, gfp, &pvma, 0); mpol_free(pvma.vm_policy); return page; } -static struct page *shmem_alloc_page(gfp_t gfp, struct shmem_inode_info *info, - unsigned long idx) +static struct page *shmem_alloc_page(gfp_t gfp, + struct shmem_inode_info *info, unsigned long idx) { struct vm_area_struct pvma; struct page *page; @@ -1063,14 +1063,14 @@ static inline int shmem_parse_mpol(char *value, int *policy, return 1; } -static inline struct page * -shmem_swapin(struct shmem_inode_info *info,swp_entry_t entry,unsigned long idx) +static inline struct page *shmem_swapin(swp_entry_t entry, gfp_t gfp, + struct shmem_inode_info *info, unsigned long idx) { - return swapin_readahead(entry, NULL, 0); + return swapin_readahead(entry, gfp, NULL, 0); } -static inline struct page * -shmem_alloc_page(gfp_t gfp,struct shmem_inode_info *info, unsigned long idx) +static inline struct page *shmem_alloc_page(gfp_t gfp, + struct shmem_inode_info *info, unsigned long idx) { return alloc_page(gfp); } @@ -1093,6 +1093,7 @@ static int shmem_getpage(struct inode *inode, unsigned long idx, struct page *swappage; swp_entry_t *entry; swp_entry_t swap; + gfp_t gfp; int error; if (idx >= SHMEM_MAX_INDEX) @@ -1117,6 +1118,7 @@ repeat: error = 0; if (sgp == SGP_QUICK) goto failed; + gfp = mapping_gfp_mask(mapping); spin_lock(&info->lock); shmem_recalc_inode(inode); @@ -1139,7 +1141,7 @@ repeat: *type |= VM_FAULT_MAJOR; } spin_unlock(&info->lock); - swappage = shmem_swapin(info, swap, idx); + swappage = shmem_swapin(swap, gfp, info, idx); if (!swappage) { spin_lock(&info->lock); entry = shmem_swp_alloc(info, idx, sgp); @@ -1251,9 +1253,7 @@ repeat: if (!filepage) { spin_unlock(&info->lock); - filepage = shmem_alloc_page(mapping_gfp_mask(mapping), - info, - idx); + filepage = shmem_alloc_page(gfp, info, idx); if (!filepage) { shmem_unacct_blocks(info->flags, 1); shmem_free_blocks(inode, 1); diff --git a/mm/swap_state.c b/mm/swap_state.c index 668a8042263..e7875642e2c 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -96,7 +96,8 @@ static int __add_to_swap_cache(struct page *page, swp_entry_t entry, return error; } -static int add_to_swap_cache(struct page *page, swp_entry_t entry) +static int add_to_swap_cache(struct page *page, swp_entry_t entry, + gfp_t gfp_mask) { int error; @@ -106,7 +107,7 @@ static int add_to_swap_cache(struct page *page, swp_entry_t entry) return -ENOENT; } SetPageLocked(page); - error = __add_to_swap_cache(page, entry, GFP_KERNEL); + error = __add_to_swap_cache(page, entry, gfp_mask & GFP_KERNEL); /* * Anon pages are already on the LRU, we don't run lru_cache_add here. */ @@ -318,7 +319,7 @@ struct page * lookup_swap_cache(swp_entry_t entry) * A failure return means that either the page allocation failed or that * the swap entry is no longer in use. */ -struct page *read_swap_cache_async(swp_entry_t entry, +struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask, struct vm_area_struct *vma, unsigned long addr) { struct page *found_page, *new_page = NULL; @@ -338,8 +339,7 @@ struct page *read_swap_cache_async(swp_entry_t entry, * Get a new page to read into from swap. */ if (!new_page) { - new_page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, - vma, addr); + new_page = alloc_page_vma(gfp_mask, vma, addr); if (!new_page) break; /* Out of memory */ } @@ -354,7 +354,7 @@ struct page *read_swap_cache_async(swp_entry_t entry, * the just freed swap entry for an existing page. * May fail (-ENOMEM) if radix-tree node allocation failed. */ - err = add_to_swap_cache(new_page, entry); + err = add_to_swap_cache(new_page, entry, gfp_mask); if (!err) { /* * Initiate read into locked page and return. @@ -388,7 +388,7 @@ struct page *read_swap_cache_async(swp_entry_t entry, * * Caller must hold down_read on the vma->vm_mm if vma is not NULL. */ -struct page *swapin_readahead(swp_entry_t entry, +struct page *swapin_readahead(swp_entry_t entry, gfp_t gfp_mask, struct vm_area_struct *vma, unsigned long addr) { int nr_pages; @@ -407,11 +407,11 @@ struct page *swapin_readahead(swp_entry_t entry, for (end_offset = offset + nr_pages; offset < end_offset; offset++) { /* Ok, do the async read-ahead now */ page = read_swap_cache_async(swp_entry(swp_type(entry), offset), - vma, addr); + gfp_mask, vma, addr); if (!page) break; page_cache_release(page); } lru_add_drain(); /* Push any new pages onto the LRU now */ - return read_swap_cache_async(entry, vma, addr); + return read_swap_cache_async(entry, gfp_mask, vma, addr); } diff --git a/mm/swapfile.c b/mm/swapfile.c index f071648e136..ab93505dfbf 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -730,7 +730,8 @@ static int try_to_unuse(unsigned int type) */ swap_map = &si->swap_map[i]; entry = swp_entry(type, i); - page = read_swap_cache_async(entry, NULL, 0); + page = read_swap_cache_async(entry, + GFP_HIGHUSER_MOVABLE, NULL, 0); if (!page) { /* * Either swap_duplicate() failed because entry |