On Sat, 21 Sep 2013, Yan, Zheng wrote: > From: "Yan, Zheng" <[email protected]> > > Positve dentry and corresponding inode are always accompanied in MDS reply. > So no need to keep inode in the cache after dropping all its aliases.
Reviewed-by: Sage Weil <[email protected]> > > Signed-off-by: Yan, Zheng <[email protected]> > --- > fs/ceph/inode.c | 10 ++++++++++ > fs/ceph/super.c | 1 + > fs/ceph/super.h | 1 + > 3 files changed, 12 insertions(+) > > diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c > index 833a4d5..49d4de0 100644 > --- a/fs/ceph/inode.c > +++ b/fs/ceph/inode.c > @@ -436,6 +436,16 @@ void ceph_destroy_inode(struct inode *inode) > call_rcu(&inode->i_rcu, ceph_i_callback); > } > > +int ceph_drop_inode(struct inode *inode) > +{ > + /* > + * Positve dentry and corresponding inode are always accompanied > + * in MDS reply. So no need to keep inode in the cache after > + * dropping all its aliases. > + */ > + return 1; > +} > + > /* > * Helpers to fill in size, ctime, mtime, and atime. We have to be > * careful because either the client or MDS may have more up to date > diff --git a/fs/ceph/super.c b/fs/ceph/super.c > index 6a0951e..e58bd4a 100644 > --- a/fs/ceph/super.c > +++ b/fs/ceph/super.c > @@ -686,6 +686,7 @@ static const struct super_operations ceph_super_ops = { > .alloc_inode = ceph_alloc_inode, > .destroy_inode = ceph_destroy_inode, > .write_inode = ceph_write_inode, > + .drop_inode = ceph_drop_inode, > .sync_fs = ceph_sync_fs, > .put_super = ceph_put_super, > .show_options = ceph_show_options, > diff --git a/fs/ceph/super.h b/fs/ceph/super.h > index 6014b0a..a538b51 100644 > --- a/fs/ceph/super.h > +++ b/fs/ceph/super.h > @@ -691,6 +691,7 @@ extern const struct inode_operations ceph_file_iops; > > extern struct inode *ceph_alloc_inode(struct super_block *sb); > extern void ceph_destroy_inode(struct inode *inode); > +extern int ceph_drop_inode(struct inode *inode); > > extern struct inode *ceph_get_inode(struct super_block *sb, > struct ceph_vino vino); > -- > 1.8.1.4 > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
