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afs: Fix off-by-one in afs_rename() expected data version calculation 

When afs_rename() calculates the expected data version of the target
directory in a cross-directory rename, it doesn't increment it as it
should, so it always thinks that the target inode is unexpectedly modified
on the server.

Fixes: a58823ac45 ("afs: Fix application of status and callback to be under same lock")
Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2019-07-30 14:38:51 +01:00
parent a6eed4ab5d
commit 37c0bbb332
1 changed files with 1 additions and 1 deletions
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2
fs/afs/dir.c
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@ -1804,7 +1804,7 @@ static int afs_rename(struct inode *old_dir, struct dentry *old_dentry,
afs_end_vnode_operation(&fc);
goto error_rehash;
}
new_data_version = new_dvnode->status.data_version;
new_data_version = new_dvnode->status.data_version + 1;
} else {
new_data_version = orig_data_version;
new_scb = &scb[0];