ARM: dts: mxs: add oled support for the cfa-10036

[firefly-linux-kernel-4.4.55.git] / fs / nfs / direct.c

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 22130df162180e39e461b6caee9bfab1c78a9c40..cae26cbd59ee89cd5d73e719ef201b26ef9cabc3 100644 (file)
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -46,6 +46,7 @@
 #include <linux/kref.h>
 #include <linux/slab.h>
 #include <linux/task_io_accounting_ops.h>
+#include <linux/module.h>
 
 #include <linux/nfs_fs.h>
 #include <linux/nfs_page.h>
@@ -78,6 +79,7 @@ struct nfs_direct_req {
        atomic_t                io_count;       /* i/os we're waiting for */
        spinlock_t              lock;           /* protect completion state */
        ssize_t                 count,          /* bytes actually processed */
+                               bytes_left,     /* bytes left to be sent */
                                error;          /* any reported error */
        struct completion       completion;     /* wait for i/o completion */
 
@@ -190,6 +192,12 @@ static void nfs_direct_req_release(struct nfs_direct_req *dreq)
        kref_put(&dreq->kref, nfs_direct_req_free);
 }
 
+ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq)
+{
+       return dreq->bytes_left;
+}
+EXPORT_SYMBOL_GPL(nfs_dreq_bytes_left);
+
 /*
  * Collects and returns the final error value/byte-count.
  */
@@ -390,6 +398,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_pageio_descriptor *de
                        user_addr += req_len;
                        pos += req_len;
                        count -= req_len;
+                       dreq->bytes_left -= req_len;
                }
                /* The nfs_page now hold references to these pages */
                nfs_direct_release_pages(pagevec, npages);
@@ -457,6 +466,7 @@ static ssize_t nfs_direct_read(struct kiocb *iocb, const struct iovec *iov,
                goto out;
 
        dreq->inode = inode;
+       dreq->bytes_left = iov_length(iov, nr_segs);
        dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
        l_ctx = nfs_get_lock_context(dreq->ctx);
        if (IS_ERR(l_ctx)) {
@@ -467,10 +477,10 @@ static ssize_t nfs_direct_read(struct kiocb *iocb, const struct iovec *iov,
        if (!is_sync_kiocb(iocb))
                dreq->iocb = iocb;
 
+       NFS_I(inode)->read_io += iov_length(iov, nr_segs);
        result = nfs_direct_read_schedule_iovec(dreq, iov, nr_segs, pos, uio);
        if (!result)
                result = nfs_direct_wait(dreq);
-       NFS_I(inode)->read_io += result;
 out_release:
        nfs_direct_req_release(dreq);
 out:
@@ -710,6 +720,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_pageio_descriptor *d
                        user_addr += req_len;
                        pos += req_len;
                        count -= req_len;
+                       dreq->bytes_left -= req_len;
                }
                /* The nfs_page now hold references to these pages */
                nfs_direct_release_pages(pagevec, npages);
@@ -818,6 +829,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
        get_dreq(dreq);
        atomic_inc(&inode->i_dio_count);
 
+       NFS_I(dreq->inode)->write_io += iov_length(iov, nr_segs);
        for (seg = 0; seg < nr_segs; seg++) {
                const struct iovec *vec = &iov[seg];
                result = nfs_direct_write_schedule_segment(&desc, vec, pos, uio);
@@ -829,7 +841,6 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
                pos += vec->iov_len;
        }
        nfs_pageio_complete(&desc);
-       NFS_I(dreq->inode)->write_io += desc.pg_bytes_written;
 
        /*
         * If no bytes were started, return the error, and let the
@@ -860,6 +871,7 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov,
                goto out;
 
        dreq->inode = inode;
+       dreq->bytes_left = count;
        dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
        l_ctx = nfs_get_lock_context(dreq->ctx);
        if (IS_ERR(l_ctx)) {