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Commit 9f12bd11 authored by Yan, Zheng's avatar Yan, Zheng Committed by Sage Weil
Browse files

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: default avatarYan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: default avatarSage Weil <sage@inktank.com>
parent 56f91aad

fs/ceph/inode.c

+10 −0
Original line number Diff line number Diff line
@@ -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

fs/ceph/super.c

+1 −0
Original line number Diff line number Diff line
@@ -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,

fs/ceph/super.h

+1 −0
Original line number Diff line number Diff line
@@ -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);