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.
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
