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ceph: drop unconnected inodes
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 <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
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3 changed files with 12 additions and 0 deletions
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@ -436,6 +436,16 @@ void ceph_destroy_inode(struct inode *inode)
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call_rcu(&inode->i_rcu, ceph_i_callback);
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}
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int ceph_drop_inode(struct inode *inode)
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{
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/*
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* Positve dentry and corresponding inode are always accompanied
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* in MDS reply. So no need to keep inode in the cache after
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* dropping all its aliases.
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*/
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return 1;
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}
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/*
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* Helpers to fill in size, ctime, mtime, and atime. We have to be
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* careful because either the client or MDS may have more up to date
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@ -686,6 +686,7 @@ static const struct super_operations ceph_super_ops = {
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.alloc_inode = ceph_alloc_inode,
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.destroy_inode = ceph_destroy_inode,
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.write_inode = ceph_write_inode,
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.drop_inode = ceph_drop_inode,
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.sync_fs = ceph_sync_fs,
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.put_super = ceph_put_super,
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.show_options = ceph_show_options,
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@ -691,6 +691,7 @@ extern const struct inode_operations ceph_file_iops;
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extern struct inode *ceph_alloc_inode(struct super_block *sb);
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extern void ceph_destroy_inode(struct inode *inode);
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extern int ceph_drop_inode(struct inode *inode);
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extern struct inode *ceph_get_inode(struct super_block *sb,
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struct ceph_vino vino);
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