pipe: change the ->pin() operation to ->confirm()
The name 'pin' was badly chosen, it doesn't pin a pipe buffer
in the most commonly used sense in the kernel. So change the
name to 'confirm', after debating this issue with Hugh
Dickins a bit.
A good return from ->confirm() means that the buffer is really
there, and that the contents are good.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 8176fbf..8604e35 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -815,7 +815,7 @@
size_t size;
int ret;
- ret = buf->ops->pin(pipe, buf);
+ ret = buf->ops->confirm(pipe, buf);
if (unlikely(ret))
return ret;
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 44c2e2a..4979b66 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1583,7 +1583,7 @@
ssize_t copied = 0;
struct ocfs2_splice_write_priv sp;
- ret = buf->ops->pin(pipe, buf);
+ ret = buf->ops->confirm(pipe, buf);
if (ret)
goto out;
@@ -1604,7 +1604,7 @@
* might enter ocfs2_buffered_write_cluster() more
* than once, so keep track of our progress here.
*/
- copied = ocfs2_buffered_write_cluster(sd->file,
+ copied = ocfs2_buffered_write_cluster(sd->u.file,
(loff_t)sd->pos + total,
count,
ocfs2_map_and_write_splice_data,
diff --git a/fs/pipe.c b/fs/pipe.c
index 3a89592..3694af1 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -203,7 +203,8 @@
page_cache_get(buf->page);
}
-int generic_pipe_buf_pin(struct pipe_inode_info *info, struct pipe_buffer *buf)
+int generic_pipe_buf_confirm(struct pipe_inode_info *info,
+ struct pipe_buffer *buf)
{
return 0;
}
@@ -212,7 +213,7 @@
.can_merge = 1,
.map = generic_pipe_buf_map,
.unmap = generic_pipe_buf_unmap,
- .pin = generic_pipe_buf_pin,
+ .confirm = generic_pipe_buf_confirm,
.release = anon_pipe_buf_release,
.steal = generic_pipe_buf_steal,
.get = generic_pipe_buf_get,
@@ -252,7 +253,7 @@
if (chars > total_len)
chars = total_len;
- error = ops->pin(pipe, buf);
+ error = ops->confirm(pipe, buf);
if (error) {
if (!ret)
error = ret;
@@ -373,7 +374,7 @@
int error, atomic = 1;
void *addr;
- error = ops->pin(pipe, buf);
+ error = ops->confirm(pipe, buf);
if (error)
goto out;
diff --git a/fs/splice.c b/fs/splice.c
index d257d66..c8041216 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -85,8 +85,8 @@
buf->flags &= ~PIPE_BUF_FLAG_LRU;
}
-static int page_cache_pipe_buf_pin(struct pipe_inode_info *pipe,
- struct pipe_buffer *buf)
+static int page_cache_pipe_buf_confirm(struct pipe_inode_info *pipe,
+ struct pipe_buffer *buf)
{
struct page *page = buf->page;
int err;
@@ -127,7 +127,7 @@
.can_merge = 0,
.map = generic_pipe_buf_map,
.unmap = generic_pipe_buf_unmap,
- .pin = page_cache_pipe_buf_pin,
+ .confirm = page_cache_pipe_buf_confirm,
.release = page_cache_pipe_buf_release,
.steal = page_cache_pipe_buf_steal,
.get = generic_pipe_buf_get,
@@ -147,7 +147,7 @@
.can_merge = 0,
.map = generic_pipe_buf_map,
.unmap = generic_pipe_buf_unmap,
- .pin = generic_pipe_buf_pin,
+ .confirm = generic_pipe_buf_confirm,
.release = page_cache_pipe_buf_release,
.steal = user_page_pipe_buf_steal,
.get = generic_pipe_buf_get,
@@ -525,7 +525,7 @@
loff_t pos = sd->pos;
int ret, more;
- ret = buf->ops->pin(pipe, buf);
+ ret = buf->ops->confirm(pipe, buf);
if (!ret) {
more = (sd->flags & SPLICE_F_MORE) || sd->len < sd->total_len;
@@ -569,7 +569,7 @@
/*
* make sure the data in this buffer is uptodate
*/
- ret = buf->ops->pin(pipe, buf);
+ ret = buf->ops->confirm(pipe, buf);
if (unlikely(ret))
return ret;
@@ -1341,7 +1341,7 @@
char *src;
int ret;
- ret = buf->ops->pin(pipe, buf);
+ ret = buf->ops->confirm(pipe, buf);
if (unlikely(ret))
return ret;