[PATCH] splice: pass offset around for ->splice_read() and ->splice_write()
We need not use ->f_pos as the offset for the file input/output. If the
user passed an offset pointer in through sys_splice(), just use that and
leave ->f_pos alone.
Signed-off-by: Jens Axboe <axboe@suse.de>
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 269721a..c847416 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -252,6 +252,7 @@
STATIC ssize_t
xfs_file_splice_read(
struct file *infilp,
+ loff_t *ppos,
struct pipe_inode_info *pipe,
size_t len,
unsigned int flags)
@@ -259,13 +260,14 @@
vnode_t *vp = vn_from_inode(infilp->f_dentry->d_inode);
ssize_t rval;
- VOP_SPLICE_READ(vp, infilp, pipe, len, flags, 0, NULL, rval);
+ VOP_SPLICE_READ(vp, infilp, ppos, pipe, len, flags, 0, NULL, rval);
return rval;
}
STATIC ssize_t
xfs_file_splice_read_invis(
struct file *infilp,
+ loff_t *ppos,
struct pipe_inode_info *pipe,
size_t len,
unsigned int flags)
@@ -273,7 +275,7 @@
vnode_t *vp = vn_from_inode(infilp->f_dentry->d_inode);
ssize_t rval;
- VOP_SPLICE_READ(vp, infilp, pipe, len, flags, IO_INVIS, NULL, rval);
+ VOP_SPLICE_READ(vp, infilp, ppos, pipe, len, flags, IO_INVIS, NULL, rval);
return rval;
}
@@ -281,13 +283,14 @@
xfs_file_splice_write(
struct pipe_inode_info *pipe,
struct file *outfilp,
+ loff_t *ppos,
size_t len,
unsigned int flags)
{
vnode_t *vp = vn_from_inode(outfilp->f_dentry->d_inode);
ssize_t rval;
- VOP_SPLICE_WRITE(vp, pipe, outfilp, len, flags, 0, NULL, rval);
+ VOP_SPLICE_WRITE(vp, pipe, outfilp, ppos, len, flags, 0, NULL, rval);
return rval;
}
@@ -295,13 +298,14 @@
xfs_file_splice_write_invis(
struct pipe_inode_info *pipe,
struct file *outfilp,
+ loff_t *ppos,
size_t len,
unsigned int flags)
{
vnode_t *vp = vn_from_inode(outfilp->f_dentry->d_inode);
ssize_t rval;
- VOP_SPLICE_WRITE(vp, pipe, outfilp, len, flags, IO_INVIS, NULL, rval);
+ VOP_SPLICE_WRITE(vp, pipe, outfilp, ppos, len, flags, IO_INVIS, NULL, rval);
return rval;
}