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| author | Yan, Zheng <zheng.z.yan@intel.com> | 2013-09-20 19:55:31 +0800 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-12-13 09:13:16 -0800 |
| commit | 9f12bd119e408388233e7aeb1152f372a8b5dcad (patch) | |
| tree | 9cf2b88f6c466ec72a52be088d1db3ab33b60906 /fs/ceph | |
| parent | 56f91aad69444d650237295f68c195b74d888d95 (diff) | |
| download | linux-9f12bd119e408388233e7aeb1152f372a8b5dcad.tar.gz linux-9f12bd119e408388233e7aeb1152f372a8b5dcad.tar.bz2 linux-9f12bd119e408388233e7aeb1152f372a8b5dcad.zip | |
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>
Diffstat (limited to 'fs/ceph')
| -rw-r--r-- | fs/ceph/inode.c | 10 | ||||
| -rw-r--r-- | fs/ceph/super.c | 1 | ||||
| -rw-r--r-- | fs/ceph/super.h | 1 |
3 files changed, 12 insertions, 0 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 278fd2891288..d37b2dc01d3f 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 6a0951e43044..e58bd4a23bfb 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 ef4ac38bb614..8de94b564d67 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); |