diff --git a/fs/ceph/ceph_fs.h b/fs/ceph/ceph_fs.h index 4e5f49c738d83b22abdf6b94c32891d18590cf2b..699196a10c6662119d1ce628eadf1ab79833bbdd 100644 --- a/fs/ceph/ceph_fs.h +++ b/fs/ceph/ceph_fs.h @@ -44,6 +44,7 @@ #define CEPH_INO_ROOT 1 +#define CEPH_INO_CEPH 2 /* hidden .ceph dir */ /* arbitrary limit on max # of monitors (cluster of 3 is typical) */ #define CEPH_MAX_MON 31 diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 32ef543672247127186ff4e9a7b34e3ac36ab1fd..89ce3ba4a614104c100bcb9eb6e343c5bf15ad30 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -132,6 +132,7 @@ static int __dcache_readdir(struct file *filp, } if (!d_unhashed(dentry) && dentry->d_inode && ceph_snap(dentry->d_inode) != CEPH_SNAPDIR && + ceph_ino(dentry->d_inode) != CEPH_INO_CEPH && filp->f_pos <= di->offset) break; dout(" skipping %p %.*s at %llu (%llu)%s%s\n", dentry, @@ -512,6 +513,12 @@ struct dentry *ceph_finish_lookup(struct ceph_mds_request *req, return dentry; } +static int is_root_ceph_dentry(struct inode *inode, struct dentry *dentry) +{ + return ceph_ino(inode) == CEPH_INO_ROOT && + strncmp(dentry->d_name.name, ".ceph", 5) == 0; +} + /* * Look up a single dir entry. If there is a lookup intent, inform * the MDS so that it gets our 'caps wanted' value in a single op. @@ -554,6 +561,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry, if (strncmp(dentry->d_name.name, client->mount_args->snapdir_name, dentry->d_name.len) && + !is_root_ceph_dentry(dir, dentry) && (ci->i_ceph_flags & CEPH_I_COMPLETE) && (__ceph_caps_issued_mask(ci, CEPH_CAP_FILE_SHARED, 1))) { di->offset = ci->i_max_offset++;