Author: fsu
Date: Fri Jun 12 13:53:50 2020
New Revision: 362097
URL: https://svnweb.freebsd.org/changeset/base/362097
Log:
MFC r361134:
Fix incorrect inode link count check in case of rename.
The check was incorrect because the directory inode link count have
min value 2 after dir_nlink extfs feature introduction.
Modified:
stable/12/sys/fs/ext2fs/ext2_vnops.c
Modified: stable/12/sys/fs/ext2fs/ext2_vnops.c
==============================================================================
--- stable/12/sys/fs/ext2fs/ext2_vnops.c Fri Jun 12 13:52:11 2020
(r362096)
+++ stable/12/sys/fs/ext2fs/ext2_vnops.c Fri Jun 12 13:53:50 2020
(r362097)
@@ -1016,10 +1016,11 @@ abortit:
*/
ext2_dec_nlink(xp);
if (doingdirectory) {
- if (--xp->i_nlink != 0)
+ if (xp->i_nlink > 2)
panic("ext2_rename: linked directory");
error = ext2_truncate(tvp, (off_t)0, IO_SYNC,
tcnp->cn_cred, tcnp->cn_thread);
+ xp->i_nlink = 0;
}
xp->i_flag |= IN_CHANGE;
vput(tvp);
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