diff options
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index b5346576e58..5d6e4c2000d 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -66,7 +66,7 @@ generic_file_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, * * ->mmap_sem * ->i_mmap_lock - * ->page_table_lock (various places, mainly in mmap.c) + * ->page_table_lock or pte_lock (various, mainly in memory.c) * ->mapping->tree_lock (arch-dependent flush_dcache_mmap_lock) * * ->mmap_sem @@ -86,9 +86,9 @@ generic_file_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, * ->anon_vma.lock (vma_adjust) * * ->anon_vma.lock - * ->page_table_lock (anon_vma_prepare and various) + * ->page_table_lock or pte_lock (anon_vma_prepare and various) * - * ->page_table_lock + * ->page_table_lock or pte_lock * ->swap_lock (try_to_unmap_one) * ->private_lock (try_to_unmap_one) * ->tree_lock (try_to_unmap_one) @@ -152,7 +152,7 @@ static int sync_page(void *word) * in the ->sync_page() methods make essential use of the * page_mapping(), merely passing the page down to the backing * device's unplug functions when it's non-NULL, which in turn - * ignore it for all cases but swap, where only page->private is + * ignore it for all cases but swap, where only page_private(page) is * of interest. When page_mapping() does go NULL, the entire * call stack gracefully ignores the page and returns. * -- wli @@ -377,7 +377,7 @@ int filemap_write_and_wait_range(struct address_space *mapping, * This function does not add the page to the LRU. The caller must do that. */ int add_to_page_cache(struct page *page, struct address_space *mapping, - pgoff_t offset, int gfp_mask) + pgoff_t offset, gfp_t gfp_mask) { int error = radix_tree_preload(gfp_mask & ~__GFP_HIGHMEM); @@ -401,7 +401,7 @@ int add_to_page_cache(struct page *page, struct address_space *mapping, EXPORT_SYMBOL(add_to_page_cache); int add_to_page_cache_lru(struct page *page, struct address_space *mapping, - pgoff_t offset, int gfp_mask) + pgoff_t offset, gfp_t gfp_mask) { int ret = add_to_page_cache(page, mapping, offset, gfp_mask); if (ret == 0) @@ -591,7 +591,7 @@ EXPORT_SYMBOL(find_lock_page); * memory exhaustion. */ struct page *find_or_create_page(struct address_space *mapping, - unsigned long index, unsigned int gfp_mask) + unsigned long index, gfp_t gfp_mask) { struct page *page, *cached_page = NULL; int err; @@ -683,7 +683,7 @@ struct page * grab_cache_page_nowait(struct address_space *mapping, unsigned long index) { struct page *page = find_get_page(mapping, index); - unsigned int gfp_mask; + gfp_t gfp_mask; if (page) { if (!TestSetPageLocked(page)) @@ -1030,8 +1030,8 @@ __generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov, desc.error = 0; do_generic_file_read(filp,ppos,&desc,file_read_actor); retval += desc.written; - if (!retval) { - retval = desc.error; + if (desc.error) { + retval = retval ?: desc.error; break; } } @@ -1520,7 +1520,7 @@ repeat: page_cache_release(page); return err; } - } else { + } else if (vma->vm_flags & VM_NONLINEAR) { /* No page was found just because we can't read it in now (being * here implies nonblock != 0), but the page may exist, so set * the PTE to fault it in later. */ @@ -1537,6 +1537,7 @@ repeat: return 0; } +EXPORT_SYMBOL(filemap_populate); struct vm_operations_struct generic_file_vm_ops = { .nopage = filemap_nopage, @@ -1555,7 +1556,6 @@ int generic_file_mmap(struct file * file, struct vm_area_struct * vma) vma->vm_ops = &generic_file_vm_ops; return 0; } -EXPORT_SYMBOL(filemap_populate); /* * This is for filesystems which do not implement ->writepage. |