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Fixfor a recently discovered regression in rename to older servers caused by a recent patch

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Merge tag '5.8-rc6-cifs-fix' of git://git.samba.org/sfrench/cifs-2.6 into master

Pull cifs fix from Steve French:
 "A fix for a recently discovered regression in rename to older servers
  caused by a recent patch"

* tag '5.8-rc6-cifs-fix' of git://git.samba.org/sfrench/cifs-2.6:
  Revert "cifs: Fix the target file was deleted when rename failed."
This commit is contained in:
Linus Torvalds 2020-07-25 12:53:46 -07:00
parent 1b64b2e244 0e6705182d
commit 7cb3a5c5f6
1 changed files with 2 additions and 8 deletions
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10
fs/cifs/inode.c
View file

@ -2044,7 +2044,6 @@ cifs_rename2(struct inode *source_dir, struct dentry *source_dentry,
FILE_UNIX_BASIC_INFO *info_buf_target;
unsigned int xid;
int rc, tmprc;
bool new_target = d_really_is_negative(target_dentry);
if (flags & ~RENAME_NOREPLACE)
return -EINVAL;
@ -2121,13 +2120,8 @@ cifs_rename2(struct inode *source_dir, struct dentry *source_dentry,
*/
unlink_target:
/*
* If the target dentry was created during the rename, try
* unlinking it if it's not negative
*/
if (new_target &&
d_really_is_positive(target_dentry) &&
(rc == -EACCES || rc == -EEXIST)) {
/* Try unlinking the target dentry if it's not negative */
if (d_really_is_positive(target_dentry) && (rc == -EACCES || rc == -EEXIST)) {
if (d_is_dir(target_dentry))
tmprc = cifs_rmdir(target_dir, target_dentry);
else