Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[karo-tx-linux.git] / fs / nfs / direct.c

diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 253d397780b1d5b07aec7ef50bf9c7fa8c06cf68..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)) {
@@ -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);
@@ -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)) {