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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/nilfs2/namei.c
View file

@ -350,7 +350,8 @@ static int nilfs_rmdir(struct inode *dir, struct dentry *dentry)
}
static int nilfs_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);
@ -361,6 +362,9 @@ static int nilfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct nilfs_transaction_info ti;
int err;
if (flags & ~RENAME_NOREPLACE)
return -EINVAL;
err = nilfs_transaction_begin(old_dir->i_sb, &ti, 1);
if (unlikely(err))
return err;
@ -552,7 +556,7 @@ const struct inode_operations nilfs_dir_inode_operations = {
.mkdir = nilfs_mkdir,
.rmdir = nilfs_rmdir,
.mknod = nilfs_mknod,
.rename = nilfs_rename,
.rename2 = nilfs_rename,
.setattr = nilfs_setattr,
.permission = nilfs_permission,
.fiemap = nilfs_fiemap,