On Tue, Mar 10, 2015 at 11:18 PM, Nicholas Mc Guire <hofrat@xxxxxxxxx> wrote:
> return type of wait_for_completion_timeout is unsigned long not int. An
> appropriately named unsigned long is added and the assignment fixed up.
>
> Signed-off-by: Nicholas Mc Guire <hofrat@xxxxxxxxx>
> ---
>
> This was only compile tested for x86_64_defconfig + CONFIG_CEPH_FS=m
>
> Patch is against 4.0-rc2 linux-next (localversion-next is -next-20150306)
>
> fs/ceph/dir.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
> index 83e9976..4bee6b7 100644
> --- a/fs/ceph/dir.c
> +++ b/fs/ceph/dir.c
> @@ -1218,6 +1218,7 @@ static int ceph_dir_fsync(struct file *file, loff_t start, loff_t end,
> struct ceph_mds_request *req;
> u64 last_tid;
> int ret = 0;
> + unsigned long time_left;
>
> dout("dir_fsync %p\n", inode);
> ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
> @@ -1240,11 +1241,11 @@ static int ceph_dir_fsync(struct file *file, loff_t start, loff_t end,
> dout("dir_fsync %p wait on tid %llu (until %llu)\n",
> inode, req->r_tid, last_tid);
> if (req->r_timeout) {
> - ret = wait_for_completion_timeout(
> + time_left = wait_for_completion_timeout(
> &req->r_safe_completion, req->r_timeout);
> - if (ret > 0)
> + if (time_left > 0)
> ret = 0;
> - else if (ret == 0)
> + else if (!time_left)
> ret = -EIO; /* timed out */
> } else {
> wait_for_completion(&req->r_safe_completion);
There are lots of similar codes in kernel. I don't think this code
causes problem in reality
> --
> 1.7.10.4
>
> --
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