diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/llite/rw26.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/rw26.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c index d89e79599199..420f296f9658 100644 --- a/drivers/staging/lustre/lustre/llite/rw26.c +++ b/drivers/staging/lustre/lustre/llite/rw26.c @@ -156,32 +156,6 @@ static int ll_releasepage(struct page *vmpage, gfp_t gfp_mask) #define MAX_DIRECTIO_SIZE (2 * 1024 * 1024 * 1024UL) -static inline int ll_get_user_pages(int rw, unsigned long user_addr, - size_t size, struct page ***pages, - int *max_pages) -{ - int result = -ENOMEM; - - /* set an arbitrary limit to prevent arithmetic overflow */ - if (size > MAX_DIRECTIO_SIZE) { - *pages = NULL; - return -EFBIG; - } - - *max_pages = (user_addr + size + PAGE_SIZE - 1) >> PAGE_SHIFT; - *max_pages -= user_addr >> PAGE_SHIFT; - - *pages = libcfs_kvzalloc(*max_pages * sizeof(**pages), GFP_NOFS); - if (*pages) { - result = get_user_pages_fast(user_addr, *max_pages, - (rw == READ), *pages); - if (unlikely(result <= 0)) - kvfree(*pages); - } - - return result; -} - /* ll_free_user_pages - tear down page struct array * @pages: array of page struct pointers underlying target buffer */ |