From f03b8ad8d38634d13e802165cc15917481b47835 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 27 Sep 2016 11:03:57 +0200 Subject: fs: support RENAME_NOREPLACE for local filesystems This is trivial to do: - add flags argument to foo_rename() - check if flags doesn't have any other than RENAME_NOREPLACE - assign foo_rename() to .rename2 instead of .rename Filesystems converted: affs, bfs, exofs, ext2, hfs, hfsplus, jffs2, jfs, logfs, minix, msdos, nilfs2, omfs, reiserfs, sysvfs, ubifs, udf, ufs, vfat. Signed-off-by: Miklos Szeredi Acked-by: Boaz Harrosh Acked-by: Richard Weinberger Acked-by: Bob Copeland Acked-by: Jan Kara Cc: Theodore Ts'o Cc: Jaegeuk Kim Cc: OGAWA Hirofumi Cc: Mikulas Patocka Cc: David Woodhouse Cc: Dave Kleikamp Cc: Ryusuke Konishi Cc: Christoph Hellwig --- fs/jffs2/dir.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'fs/jffs2') diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c index 30eb33ff8189..11e711b12ccf 100644 --- a/fs/jffs2/dir.c +++ b/fs/jffs2/dir.c @@ -35,7 +35,8 @@ static int jffs2_mkdir (struct inode *,struct dentry *,umode_t); static int jffs2_rmdir (struct inode *,struct dentry *); static int jffs2_mknod (struct inode *,struct dentry *,umode_t,dev_t); static int jffs2_rename (struct inode *, struct dentry *, - struct inode *, struct dentry *); + struct inode *, struct dentry *, + unsigned int); const struct file_operations jffs2_dir_operations = { @@ -57,7 +58,7 @@ const struct inode_operations jffs2_dir_inode_operations = .mkdir = jffs2_mkdir, .rmdir = jffs2_rmdir, .mknod = jffs2_mknod, - .rename = jffs2_rename, + .rename2 = jffs2_rename, .get_acl = jffs2_get_acl, .set_acl = jffs2_set_acl, .setattr = jffs2_setattr, @@ -759,7 +760,8 @@ static int jffs2_mknod (struct inode *dir_i, struct dentry *dentry, umode_t mode } static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry, - struct inode *new_dir_i, struct dentry *new_dentry) + struct inode *new_dir_i, struct dentry *new_dentry, + unsigned int flags) { int ret; struct jffs2_sb_info *c = JFFS2_SB_INFO(old_dir_i->i_sb); @@ -767,6 +769,9 @@ static int jffs2_rename (struct inode *old_dir_i, struct dentry *old_dentry, uint8_t type; uint32_t now; + if (flags & ~RENAME_NOREPLACE) + return -EINVAL; + /* The VFS will check for us and prevent trying to rename a * file over a directory and vice versa, but if it's a directory, * the VFS can't check whether the victim is empty. The filesystem -- cgit v1.2.3