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ocfs2: switch to iter_file_splice_write()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-04-05 04:34:23 -04:00
parent 8d0207652c
commit 6dc8bc0fb3
1 changed files with 2 additions and 80 deletions
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82
fs/ocfs2/file.c
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@ -2430,84 +2430,6 @@ out_sems:
return ret;
}
static int ocfs2_splice_to_file(struct pipe_inode_info *pipe,
struct file *out,
struct splice_desc *sd)
{
int ret;
ret = ocfs2_prepare_inode_for_write(out, &sd->pos,
sd->total_len, 0, NULL, NULL);
if (ret < 0) {
mlog_errno(ret);
return ret;
}
return splice_from_pipe_feed(pipe, sd, pipe_to_file);
}
static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe,
struct file *out,
loff_t *ppos,
size_t len,
unsigned int flags)
{
int ret;
struct address_space *mapping = out->f_mapping;
struct inode *inode = mapping->host;
struct splice_desc sd = {
.total_len = len,
.flags = flags,
.pos = *ppos,
.u.file = out,
};
trace_ocfs2_file_splice_write(inode, out, out->f_path.dentry,
(unsigned long long)OCFS2_I(inode)->ip_blkno,
out->f_path.dentry->d_name.len,
out->f_path.dentry->d_name.name, len);
pipe_lock(pipe);
splice_from_pipe_begin(&sd);
do {
ret = splice_from_pipe_next(pipe, &sd);
if (ret <= 0)
break;
mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
ret = ocfs2_rw_lock(inode, 1);
if (ret < 0)
mlog_errno(ret);
else {
ret = ocfs2_splice_to_file(pipe, out, &sd);
ocfs2_rw_unlock(inode, 1);
}
mutex_unlock(&inode->i_mutex);
} while (ret > 0);
splice_from_pipe_end(pipe, &sd);
pipe_unlock(pipe);
if (sd.num_spliced)
ret = sd.num_spliced;
if (ret > 0) {
int err;
err = generic_write_sync(out, *ppos, ret);
if (err)
ret = err;
else
*ppos += ret;
balance_dirty_pages_ratelimited(mapping);
}
return ret;
}
static ssize_t ocfs2_file_splice_read(struct file *in,
loff_t *ppos,
struct pipe_inode_info *pipe,
@ -2708,7 +2630,7 @@ const struct file_operations ocfs2_fops = {
.lock = ocfs2_lock,
.flock = ocfs2_flock,
.splice_read = ocfs2_file_splice_read,
.splice_write = ocfs2_file_splice_write,
.splice_write = iter_file_splice_write,
.fallocate = ocfs2_fallocate,
};
@ -2755,7 +2677,7 @@ const struct file_operations ocfs2_fops_no_plocks = {
#endif
.flock = ocfs2_flock,
.splice_read = ocfs2_file_splice_read,
.splice_write = ocfs2_file_splice_write,
.splice_write = iter_file_splice_write,
.fallocate = ocfs2_fallocate,
};