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fs: support RENAME_NOREPLACE for local filesystems

Browse source 
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 <[email protected]>
Acked-by: Boaz Harrosh <[email protected]>
Acked-by: Richard Weinberger <[email protected]>
Acked-by: Bob Copeland <[email protected]>
Acked-by: Jan Kara <[email protected]>
Cc: Theodore Ts'o <[email protected]>
Cc: Jaegeuk Kim <[email protected]>
Cc: OGAWA Hirofumi <[email protected]>
Cc: Mikulas Patocka <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Dave Kleikamp <[email protected]>
Cc: Ryusuke Konishi <[email protected]>
Cc: Christoph Hellwig <[email protected]>
This commit is contained in:
Miklos Szeredi 2016-09-27 11:03:57 +02:00
commit f03b8ad8d3
22 changed files with 123 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

8
fs/ufs/namei.c
View file

@ -245,7 +245,8 @@ static int ufs_rmdir (struct inode * dir, struct dentry *dentry)
}
static int ufs_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);
@ -255,6 +256,9 @@ static int ufs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct ufs_dir_entry *old_de;
int err = -ENOENT;
if (flags & ~RENAME_NOREPLACE)
return -EINVAL;
old_de = ufs_find_entry(old_dir, &old_dentry->d_name, &old_page);
if (!old_de)
goto out;
@ -333,5 +337,5 @@ const struct inode_operations ufs_dir_inode_operations = {
.mkdir = ufs_mkdir,
.rmdir = ufs_rmdir,
.mknod = ufs_mknod,
.rename = ufs_rename,
.rename2 = ufs_rename,
};