[PATCH] Vectorize aio_read/aio_write fileop methods

This patch vectorizes aio_read() and aio_write() methods to prepare for
collapsing all aio & vectored operations into one interface - which is
aio_read()/aio_write().

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Michael Holzheu <HOLZHEU@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 23 insertions, 23 deletions

diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 41cfcba7ce49..4737971c6a39 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -49,50 +49,49 @@ static struct vm_operations_struct xfs_dmapi_file_vm_ops;
 STATIC inline ssize_t
 __xfs_file_read(
         struct kiocb            *iocb,
-        char                    __user *buf,
+        const struct iovec      *iov,
+        unsigned long           nr_segs,
         int                     ioflags,
-        size_t                  count,
         loff_t                  pos)
 {
-        struct iovec            iov = {buf, count};
         struct file             *file = iocb->ki_filp;
         bhv_vnode_t             *vp = vn_from_inode(file->f_dentry->d_inode);
 
         BUG_ON(iocb->ki_pos != pos);
         if (unlikely(file->f_flags & O_DIRECT))
                 ioflags |= IO_ISDIRECT;
-        return bhv_vop_read(vp, iocb, &iov, 1, &iocb->ki_pos, ioflags, NULL);
+        return bhv_vop_read(vp, iocb, iov, nr_segs, &iocb->ki_pos,
+                                ioflags, NULL);
 }
 
 STATIC ssize_t
 xfs_file_aio_read(
         struct kiocb            *iocb,
-        char                    __user *buf,
-        size_t                  count,
+        const struct iovec      *iov,
+        unsigned long           nr_segs,
         loff_t                  pos)
 {
-        return __xfs_file_read(iocb, buf, IO_ISAIO, count, pos);
+        return __xfs_file_read(iocb, iov, nr_segs, IO_ISAIO, pos);
 }
 
 STATIC ssize_t
 xfs_file_aio_read_invis(
         struct kiocb            *iocb,
-        char                    __user *buf,
-        size_t                  count,
+        const struct iovec      *iov,
+        unsigned long           nr_segs,
         loff_t                  pos)
 {
-        return __xfs_file_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
+        return __xfs_file_read(iocb, iov, nr_segs, IO_ISAIO|IO_INVIS, pos);
 }
 
 STATIC inline ssize_t
 __xfs_file_write(
-        struct kiocb    *iocb,
-        const char      __user *buf,
-        int             ioflags,
-        size_t          count,
-        loff_t          pos)
+        struct kiocb            *iocb,
+        const struct iovec      *iov,
+        unsigned long           nr_segs,
+        int                     ioflags,
+        loff_t                  pos)
 {
-        struct iovec    iov = {(void __user *)buf, count};
         struct file     *file = iocb->ki_filp;
         struct inode    *inode = file->f_mapping->host;
         bhv_vnode_t     *vp = vn_from_inode(inode);
@@ -100,27 +99,28 @@ __xfs_file_write(
         BUG_ON(iocb->ki_pos != pos);
         if (unlikely(file->f_flags & O_DIRECT))
                 ioflags |= IO_ISDIRECT;
-        return bhv_vop_write(vp, iocb, &iov, 1, &iocb->ki_pos, ioflags, NULL);
+        return bhv_vop_write(vp, iocb, iov, nr_segs, &iocb->ki_pos,
+                                ioflags, NULL);
 }
 
 STATIC ssize_t
 xfs_file_aio_write(
         struct kiocb            *iocb,
-        const char              __user *buf,
-        size_t                  count,
+        const struct iovec      *iov,
+        unsigned long           nr_segs,
         loff_t                  pos)
 {
-        return __xfs_file_write(iocb, buf, IO_ISAIO, count, pos);
+        return __xfs_file_write(iocb, iov, nr_segs, IO_ISAIO, pos);
 }
 
 STATIC ssize_t
 xfs_file_aio_write_invis(
         struct kiocb            *iocb,
-        const char              __user *buf,
-        size_t                  count,
+        const struct iovec      *iov,
+        unsigned long           nr_segs,
         loff_t                  pos)
 {
-        return __xfs_file_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
+        return __xfs_file_write(iocb, iov, nr_segs, IO_ISAIO|IO_INVIS, pos);
 }
 
 STATIC inline ssize_t