From 1cd66c93ba8cdb873258f58ae6a817b28a02bcc3 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 27 Sep 2016 11:03:58 +0200 Subject: [PATCH] fs: make remaining filesystems use .rename2 This is trivial to do: - add flags argument to foo_rename() - check if flags is zero - assign foo_rename() to .rename2 instead of .rename This doesn't mean it's impossible to support RENAME_NOREPLACE for these filesystems, but it is not trivial, like for local filesystems. RENAME_NOREPLACE must guarantee atomicity (i.e. it shouldn't be possible for a file to be created on one host while it is overwritten by rename on another host). Filesystems converted: 9p, afs, ceph, coda, ecryptfs, kernfs, lustre, ncpfs, nfs, ocfs2, orangefs. After this, we can get rid of the duplicate interfaces for rename. Signed-off-by: Miklos Szeredi Acked-by: Greg Kroah-Hartman Acked-by: David Howells [AFS] Acked-by: Mike Marshall Cc: Eric Van Hensbergen Cc: Ilya Dryomov Cc: Jan Harkes Cc: Tyler Hicks Cc: Oleg Drokin Cc: Trond Myklebust Cc: Mark Fasheh --- drivers/staging/lustre/lustre/llite/namei.c | 8 ++++++-- fs/9p/v9fs.h | 3 ++- fs/9p/vfs_inode.c | 10 +++++++--- fs/9p/vfs_inode_dotl.c | 2 +- fs/afs/dir.c | 11 ++++++++--- fs/ceph/dir.c | 10 +++++++--- fs/coda/dir.c | 8 ++++++-- fs/ecryptfs/inode.c | 8 ++++++-- fs/kernfs/dir.c | 8 ++++++-- fs/ncpfs/dir.c | 10 +++++++--- fs/nfs/dir.c | 6 +++++- fs/nfs/internal.h | 3 ++- fs/nfs/nfs3proc.c | 2 +- fs/nfs/nfs4proc.c | 2 +- fs/nfs/proc.c | 2 +- fs/ocfs2/namei.c | 8 ++++++-- fs/orangefs/namei.c | 8 ++++++-- 17 files changed, 78 insertions(+), 31 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c index 2c4dc69731e8..ec824db2ad33 100644 --- a/drivers/staging/lustre/lustre/llite/namei.c +++ b/drivers/staging/lustre/lustre/llite/namei.c @@ -1050,13 +1050,17 @@ out: } static int ll_rename(struct inode *src, struct dentry *src_dchild, - struct inode *tgt, struct dentry *tgt_dchild) + struct inode *tgt, struct dentry *tgt_dchild, + unsigned int flags) { struct ptlrpc_request *request = NULL; struct ll_sb_info *sbi = ll_i2sbi(src); struct md_op_data *op_data; int err; + if (flags) + return -EINVAL; + CDEBUG(D_VFSTRACE, "VFS Op:oldname=%pd, src_dir="DFID"(%p), newname=%pd, tgt_dir="DFID"(%p)\n", src_dchild, PFID(ll_inode2fid(src)), src, @@ -1102,7 +1106,7 @@ const struct inode_operations ll_dir_inode_operations = { .rmdir = ll_rmdir, .symlink = ll_symlink, .link = ll_link, - .rename = ll_rename, + .rename2 = ll_rename, .setattr = ll_setattr, .getattr = ll_getattr, .permission = ll_inode_permission, diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index 6877050384a1..443d12e02043 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -148,7 +148,8 @@ extern struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, extern int v9fs_vfs_unlink(struct inode *i, struct dentry *d); extern int v9fs_vfs_rmdir(struct inode *i, struct dentry *d); extern int v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry); + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags); extern struct inode *v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid, struct super_block *sb, int new); diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 8b1999b528e9..50ab1a615207 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -955,7 +955,8 @@ int v9fs_vfs_rmdir(struct inode *i, struct dentry *d) int v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { int retval; struct inode *old_inode; @@ -966,6 +967,9 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct p9_fid *newdirfid; struct p9_wstat wstat; + if (flags) + return -EINVAL; + p9_debug(P9_DEBUG_VFS, "\n"); retval = 0; old_inode = d_inode(old_dentry); @@ -1436,7 +1440,7 @@ static const struct inode_operations v9fs_dir_inode_operations_dotu = { .mkdir = v9fs_vfs_mkdir, .rmdir = v9fs_vfs_rmdir, .mknod = v9fs_vfs_mknod, - .rename = v9fs_vfs_rename, + .rename2 = v9fs_vfs_rename, .getattr = v9fs_vfs_getattr, .setattr = v9fs_vfs_setattr, }; @@ -1449,7 +1453,7 @@ static const struct inode_operations v9fs_dir_inode_operations = { .mkdir = v9fs_vfs_mkdir, .rmdir = v9fs_vfs_rmdir, .mknod = v9fs_vfs_mknod, - .rename = v9fs_vfs_rename, + .rename2 = v9fs_vfs_rename, .getattr = v9fs_vfs_getattr, .setattr = v9fs_vfs_setattr, }; diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c index eeabcb0bad12..8164be972b5c 100644 --- a/fs/9p/vfs_inode_dotl.c +++ b/fs/9p/vfs_inode_dotl.c @@ -964,7 +964,7 @@ const struct inode_operations v9fs_dir_inode_operations_dotl = { .mkdir = v9fs_vfs_mkdir_dotl, .rmdir = v9fs_vfs_rmdir, .mknod = v9fs_vfs_mknod_dotl, - .rename = v9fs_vfs_rename, + .rename2 = v9fs_vfs_rename, .getattr = v9fs_vfs_getattr_dotl, .setattr = v9fs_vfs_setattr_dotl, .setxattr = generic_setxattr, diff --git a/fs/afs/dir.c b/fs/afs/dir.c index eba541004d90..381b7d0b6751 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -38,7 +38,8 @@ static int afs_link(struct dentry *from, struct inode *dir, static int afs_symlink(struct inode *dir, struct dentry *dentry, const char *content); static int afs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry); + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags); const struct file_operations afs_dir_file_operations = { .open = afs_dir_open, @@ -56,7 +57,7 @@ const struct inode_operations afs_dir_inode_operations = { .symlink = afs_symlink, .mkdir = afs_mkdir, .rmdir = afs_rmdir, - .rename = afs_rename, + .rename2 = afs_rename, .permission = afs_permission, .getattr = afs_getattr, .setattr = afs_setattr, @@ -1083,12 +1084,16 @@ error: * rename a file in an AFS filesystem and/or move it between directories */ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { struct afs_vnode *orig_dvnode, *new_dvnode, *vnode; struct key *key; int ret; + if (flags) + return -EINVAL; + vnode = AFS_FS_I(d_inode(old_dentry)); orig_dvnode = AFS_FS_I(old_dir); new_dvnode = AFS_FS_I(new_dir); diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index df4b3e6fa563..cef8252af38a 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -1061,7 +1061,8 @@ out: } static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { struct ceph_fs_client *fsc = ceph_sb_to_client(old_dir->i_sb); struct ceph_mds_client *mdsc = fsc->mdsc; @@ -1069,6 +1070,9 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry, int op = CEPH_MDS_OP_RENAME; int err; + if (flags) + return -EINVAL; + if (ceph_snap(old_dir) != ceph_snap(new_dir)) return -EXDEV; if (ceph_snap(old_dir) != CEPH_NOSNAP) { @@ -1498,7 +1502,7 @@ const struct inode_operations ceph_dir_iops = { .link = ceph_link, .unlink = ceph_unlink, .rmdir = ceph_unlink, - .rename = ceph_rename, + .rename2 = ceph_rename, .create = ceph_create, .atomic_open = ceph_atomic_open, }; @@ -1509,7 +1513,7 @@ const struct inode_operations ceph_snapdir_iops = { .getattr = ceph_getattr, .mkdir = ceph_mkdir, .rmdir = ceph_unlink, - .rename = ceph_rename, + .rename2 = ceph_rename, }; const struct dentry_operations ceph_dentry_ops = { diff --git a/fs/coda/dir.c b/fs/coda/dir.c index 6fb8672c0892..5d79c26b0484 100644 --- a/fs/coda/dir.c +++ b/fs/coda/dir.c @@ -291,7 +291,8 @@ static int coda_rmdir(struct inode *dir, struct dentry *de) /* rename */ static int coda_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { const char *old_name = old_dentry->d_name.name; const char *new_name = new_dentry->d_name.name; @@ -299,6 +300,9 @@ static int coda_rename(struct inode *old_dir, struct dentry *old_dentry, int new_length = new_dentry->d_name.len; int error; + if (flags) + return -EINVAL; + error = venus_rename(old_dir->i_sb, coda_i2f(old_dir), coda_i2f(new_dir), old_length, new_length, (const char *) old_name, (const char *)new_name); @@ -569,7 +573,7 @@ const struct inode_operations coda_dir_inode_operations = { .mkdir = coda_mkdir, .rmdir = coda_rmdir, .mknod = CODA_EIO_ERROR, - .rename = coda_rename, + .rename2 = coda_rename, .permission = coda_permission, .getattr = coda_getattr, .setattr = coda_setattr, diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 9d153b6a1d72..f3ff7c4d384c 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -577,7 +577,8 @@ out: static int ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { int rc; struct dentry *lower_old_dentry; @@ -587,6 +588,9 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct dentry *trap = NULL; struct inode *target_inode; + if (flags) + return -EINVAL; + lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry); lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry); dget(lower_old_dentry); @@ -1104,7 +1108,7 @@ const struct inode_operations ecryptfs_dir_iops = { .mkdir = ecryptfs_mkdir, .rmdir = ecryptfs_rmdir, .mknod = ecryptfs_mknod, - .rename = ecryptfs_rename, + .rename2 = ecryptfs_rename, .permission = ecryptfs_permission, .setattr = ecryptfs_setattr, .setxattr = ecryptfs_setxattr, diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c index e57174d43683..c7e23ca945ab 100644 --- a/fs/kernfs/dir.c +++ b/fs/kernfs/dir.c @@ -1096,13 +1096,17 @@ static int kernfs_iop_rmdir(struct inode *dir, struct dentry *dentry) } static int kernfs_iop_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { struct kernfs_node *kn = old_dentry->d_fsdata; struct kernfs_node *new_parent = new_dir->i_private; struct kernfs_syscall_ops *scops = kernfs_root(kn)->syscall_ops; int ret; + if (flags) + return -EINVAL; + if (!scops || !scops->rename) return -EPERM; @@ -1133,7 +1137,7 @@ const struct inode_operations kernfs_dir_iops = { .mkdir = kernfs_iop_mkdir, .rmdir = kernfs_iop_rmdir, - .rename = kernfs_iop_rename, + .rename2 = kernfs_iop_rename, }; static struct kernfs_node *kernfs_leftmost_descendant(struct kernfs_node *pos) diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c index f5b594e2457c..a2d3738df4af 100644 --- a/fs/ncpfs/dir.c +++ b/fs/ncpfs/dir.c @@ -36,7 +36,7 @@ static int ncp_unlink(struct inode *, struct dentry *); static int ncp_mkdir(struct inode *, struct dentry *, umode_t); static int ncp_rmdir(struct inode *, struct dentry *); static int ncp_rename(struct inode *, struct dentry *, - struct inode *, struct dentry *); + struct inode *, struct dentry *, unsigned int); static int ncp_mknod(struct inode * dir, struct dentry *dentry, umode_t mode, dev_t rdev); #if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS) @@ -65,7 +65,7 @@ const struct inode_operations ncp_dir_inode_operations = .mkdir = ncp_mkdir, .rmdir = ncp_rmdir, .mknod = ncp_mknod, - .rename = ncp_rename, + .rename2 = ncp_rename, .setattr = ncp_notify_change, }; @@ -1105,13 +1105,17 @@ static int ncp_unlink(struct inode *dir, struct dentry *dentry) } static int ncp_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { struct ncp_server *server = NCP_SERVER(old_dir); int error; int old_len, new_len; __u8 __old_name[NCP_MAXPATHLEN + 1], __new_name[NCP_MAXPATHLEN + 1]; + if (flags) + return -EINVAL; + ncp_dbg(1, "%pd2 to %pd2\n", old_dentry, new_dentry); ncp_age_dentry(server, old_dentry); diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 177fefb26c18..06e0bf092ba9 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -2013,7 +2013,8 @@ EXPORT_SYMBOL_GPL(nfs_link); * the rename. */ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { struct inode *old_inode = d_inode(old_dentry); struct inode *new_inode = d_inode(new_dentry); @@ -2021,6 +2022,9 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct rpc_task *task; int error = -EBUSY; + if (flags) + return -EINVAL; + dfprintk(VFS, "NFS: rename(%pd2 -> %pd2, ct=%d)\n", old_dentry, new_dentry, d_count(new_dentry)); diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 74935a19e4bf..48d1adfe25d6 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -359,7 +359,8 @@ int nfs_unlink(struct inode *, struct dentry *); int nfs_symlink(struct inode *, struct dentry *, const char *); int nfs_link(struct dentry *, struct inode *, struct dentry *); int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t); -int nfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); +int nfs_rename(struct inode *, struct dentry *, + struct inode *, struct dentry *, unsigned int); /* file.c */ int nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync); diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 698be9361280..a85fdae4a51f 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -893,7 +893,7 @@ static const struct inode_operations nfs3_dir_inode_operations = { .mkdir = nfs_mkdir, .rmdir = nfs_rmdir, .mknod = nfs_mknod, - .rename = nfs_rename, + .rename2 = nfs_rename, .permission = nfs_permission, .getattr = nfs_getattr, .setattr = nfs_setattr, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index a9dec32ba9ba..14956da3cf38 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -8937,7 +8937,7 @@ static const struct inode_operations nfs4_dir_inode_operations = { .mkdir = nfs_mkdir, .rmdir = nfs_rmdir, .mknod = nfs_mknod, - .rename = nfs_rename, + .rename2 = nfs_rename, .permission = nfs_permission, .getattr = nfs_getattr, .setattr = nfs_setattr, diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index b7bca8303989..380d0b787983 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c @@ -685,7 +685,7 @@ static const struct inode_operations nfs_dir_inode_operations = { .mkdir = nfs_mkdir, .rmdir = nfs_rmdir, .mknod = nfs_mknod, - .rename = nfs_rename, + .rename2 = nfs_rename, .permission = nfs_permission, .getattr = nfs_getattr, .setattr = nfs_setattr, diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index a8f1225e6d9b..1040c10a9493 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -1203,7 +1203,8 @@ static void ocfs2_double_unlock(struct inode *inode1, struct inode *inode2) static int ocfs2_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, - struct dentry *new_dentry) + struct dentry *new_dentry, + unsigned int flags) { int status = 0, rename_lock = 0, parents_locked = 0, target_exists = 0; int old_child_locked = 0, new_child_locked = 0, update_dot_dot = 0; @@ -1228,6 +1229,9 @@ static int ocfs2_rename(struct inode *old_dir, struct ocfs2_dir_lookup_result target_insert = { NULL, }; bool should_add_orphan = false; + if (flags) + return -EINVAL; + /* At some point it might be nice to break this function up a * bit. */ @@ -2909,7 +2913,7 @@ const struct inode_operations ocfs2_dir_iops = { .symlink = ocfs2_symlink, .mkdir = ocfs2_mkdir, .mknod = ocfs2_mknod, - .rename = ocfs2_rename, + .rename2 = ocfs2_rename, .setattr = ocfs2_setattr, .getattr = ocfs2_getattr, .permission = ocfs2_permission, diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c index 62c525936ee8..810d43635dfb 100644 --- a/fs/orangefs/namei.c +++ b/fs/orangefs/namei.c @@ -409,11 +409,15 @@ out: static int orangefs_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, - struct dentry *new_dentry) + struct dentry *new_dentry, + unsigned int flags) { struct orangefs_kernel_op_s *new_op; int ret; + if (flags) + return -EINVAL; + gossip_debug(GOSSIP_NAME_DEBUG, "orangefs_rename: called (%pd2 => %pd2) ct=%d\n", old_dentry, new_dentry, d_count(new_dentry)); @@ -459,7 +463,7 @@ const struct inode_operations orangefs_dir_inode_operations = { .symlink = orangefs_symlink, .mkdir = orangefs_mkdir, .rmdir = orangefs_unlink, - .rename = orangefs_rename, + .rename2 = orangefs_rename, .setattr = orangefs_setattr, .getattr = orangefs_getattr, .setxattr = generic_setxattr,