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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/bfs/dir.c
View file

@ -207,7 +207,8 @@ out_brelse:
}
static int bfs_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, *new_inode;
struct buffer_head *old_bh, *new_bh;
@ -215,6 +216,9 @@ static int bfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct bfs_sb_info *info;
int error = -ENOENT;
if (flags & ~RENAME_NOREPLACE)
return -EINVAL;
old_bh = new_bh = NULL;
old_inode = d_inode(old_dentry);
if (S_ISDIR(old_inode->i_mode))
@ -270,7 +274,7 @@ const struct inode_operations bfs_dir_inops = {
.lookup = bfs_lookup,
.link = bfs_link,
.unlink = bfs_unlink,
.rename = bfs_rename,
.rename2 = bfs_rename,
};
static int bfs_add_entry(struct inode *dir, const unsigned char *name,