direct_IO: use iov_iter_rw() instead of rw everywhere

[mirror_ubuntu-zesty-kernel.git] / drivers / staging / lustre / lustre / llite / rw26.c

diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index 2f21304046aa9335e438b36f462be4aa62cbebd3..3aa9de6bcc400eafbba5fe15869a024ff6885110 100644 (file)
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -399,7 +399,7 @@ static ssize_t ll_direct_IO_26(int rw, struct kiocb *iocb,
         *    size changing by concurrent truncates and writes.
         * 1. Need inode mutex to operate transient pages.
         */
-       if (rw == READ)
+       if (iov_iter_rw(iter) == READ)
                mutex_lock(&inode->i_mutex);
 
        LASSERT(obj->cob_transient_pages == 0);
@@ -408,7 +408,7 @@ static ssize_t ll_direct_IO_26(int rw, struct kiocb *iocb,
                size_t offs;
 
                count = min_t(size_t, iov_iter_count(iter), size);
-               if (rw == READ) {
+               if (iov_iter_rw(iter) == READ) {
                        if (file_offset >= i_size_read(inode))
                                break;
                        if (file_offset + count > i_size_read(inode))
@@ -418,11 +418,11 @@ static ssize_t ll_direct_IO_26(int rw, struct kiocb *iocb,
                result = iov_iter_get_pages_alloc(iter, &pages, count, &offs);
                if (likely(result > 0)) {
                        int n = DIV_ROUND_UP(result + offs, PAGE_SIZE);
-                       result = ll_direct_IO_26_seg(env, io, rw, inode,
-                                                    file->f_mapping,
-                                                    result, file_offset,
-                                                    pages, n);
-                       ll_free_user_pages(pages, n, rw==READ);
+                       result = ll_direct_IO_26_seg(env, io, iov_iter_rw(iter),
+                                                    inode, file->f_mapping,
+                                                    result, file_offset, pages,
+                                                    n);
+                       ll_free_user_pages(pages, n, iov_iter_rw(iter) == READ);
                }
                if (unlikely(result <= 0)) {
                        /* If we can't allocate a large enough buffer
@@ -449,11 +449,11 @@ static ssize_t ll_direct_IO_26(int rw, struct kiocb *iocb,
        }
 out:
        LASSERT(obj->cob_transient_pages == 0);
-       if (rw == READ)
+       if (iov_iter_rw(iter) == READ)
                mutex_unlock(&inode->i_mutex);
 
        if (tot_bytes > 0) {
-               if (rw == WRITE) {
+               if (iov_iter_rw(iter) == WRITE) {
                        struct lov_stripe_md *lsm;
 
                        lsm = ccc_inode_lsm_get(inode);