Re: [PATCH 2/8] ceph: don't use ->d_time
From: Yan, Zheng
Date: Thu Jun 23 2016 - 02:21:17 EST
> On Jun 22, 2016, at 22:35, Miklos Szeredi <mszeredi@xxxxxxxxxx> wrote:
>
> Pretty simple: just use ceph_dentry_info.time instead (which was already
> there, unused).
>
> Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
> Cc: Yan, Zheng <zyan@xxxxxxxxxx>
> ---
> fs/ceph/dir.c | 6 +++---
> fs/ceph/inode.c | 4 ++--
> fs/ceph/mds_client.c | 4 ++--
> fs/ceph/super.h | 2 +-
> 4 files changed, 8 insertions(+), 8 deletions(-)
Reviewed-by: Yan, Zheng <zyan@xxxxxxxxxx>
>
> diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
> index 6e0fedf6713b..8ff7bcc7fc88 100644
> --- a/fs/ceph/dir.c
> +++ b/fs/ceph/dir.c
> @@ -59,7 +59,7 @@ int ceph_init_dentry(struct dentry *dentry)
>
> di->dentry = dentry;
> di->lease_session = NULL;
> - dentry->d_time = jiffies;
> + di->time = jiffies;
> /* avoid reordering d_fsdata setup so that the check above is safe */
> smp_mb();
> dentry->d_fsdata = di;
> @@ -1124,7 +1124,7 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
> void ceph_invalidate_dentry_lease(struct dentry *dentry)
> {
> spin_lock(&dentry->d_lock);
> - dentry->d_time = jiffies;
> + ceph_dentry(dentry)->time = jiffies;
> ceph_dentry(dentry)->lease_shared_gen = 0;
> spin_unlock(&dentry->d_lock);
> }
> @@ -1154,7 +1154,7 @@ static int dentry_lease_is_valid(struct dentry *dentry)
> spin_unlock(&s->s_gen_ttl_lock);
>
> if (di->lease_gen == gen &&
> - time_before(jiffies, dentry->d_time) &&
> + time_before(jiffies, di->time) &&
> time_before(jiffies, ttl)) {
> valid = 1;
> if (di->lease_renew_after &&
> diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
> index f059b5997072..7a33178ef850 100644
> --- a/fs/ceph/inode.c
> +++ b/fs/ceph/inode.c
> @@ -1018,7 +1018,7 @@ static void update_dentry_lease(struct dentry *dentry,
> goto out_unlock;
>
> if (di->lease_gen == session->s_cap_gen &&
> - time_before(ttl, dentry->d_time))
> + time_before(ttl, di->time))
> goto out_unlock; /* we already have a newer lease. */
>
> if (di->lease_session && di->lease_session != session)
> @@ -1032,7 +1032,7 @@ static void update_dentry_lease(struct dentry *dentry,
> di->lease_seq = le32_to_cpu(lease->seq);
> di->lease_renew_after = half_ttl;
> di->lease_renew_from = 0;
> - dentry->d_time = ttl;
> + di->time = ttl;
> out_unlock:
> spin_unlock(&dentry->d_lock);
> return;
> diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
> index 2103b823bec0..db9c654d42cd 100644
> --- a/fs/ceph/mds_client.c
> +++ b/fs/ceph/mds_client.c
> @@ -3231,7 +3231,7 @@ static void handle_lease(struct ceph_mds_client *mdsc,
> msecs_to_jiffies(le32_to_cpu(h->duration_ms));
>
> di->lease_seq = seq;
> - dentry->d_time = di->lease_renew_from + duration;
> + di->time = di->lease_renew_from + duration;
> di->lease_renew_after = di->lease_renew_from +
> (duration >> 1);
> di->lease_renew_from = 0;
> @@ -3316,7 +3316,7 @@ void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc, struct inode *inode,
> if (!di || !di->lease_session ||
> di->lease_session->s_mds < 0 ||
> di->lease_gen != di->lease_session->s_cap_gen ||
> - !time_before(jiffies, dentry->d_time)) {
> + !time_before(jiffies, di->time)) {
> dout("lease_release inode %p dentry %p -- "
> "no lease\n",
> inode, dentry);
> diff --git a/fs/ceph/super.h b/fs/ceph/super.h
> index 0168b49fb6ad..10776db93143 100644
> --- a/fs/ceph/super.h
> +++ b/fs/ceph/super.h
> @@ -246,7 +246,7 @@ struct ceph_dentry_info {
> unsigned long lease_renew_after, lease_renew_from;
> struct list_head lru;
> struct dentry *dentry;
> - u64 time;
> + unsigned long time;
> u64 offset;
> };
>
> --
> 2.5.5
>