Commit 8cb0bc54 authored by Ralph Boehme's avatar Ralph Boehme Committed by Steve French
Browse files

fs/smb/client: cifs_prime_dcache() for SMB3 POSIX reparse points 



Spares an extra revalidation request

Cc: stable@vger.kernel.org
Acked-by: default avatarPaulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: default avatarRalph Boehme <slow@samba.org>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 6a832bc8

fs/smb/client/readdir.c

+17 −1
Original line number Diff line number Diff line
@@ -71,6 +71,8 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name, 
	struct inode *inode;

	struct super_block *sb = parent->d_sb;

	struct cifs_sb_info *cifs_sb = CIFS_SB(sb);

	bool posix = cifs_sb_master_tcon(cifs_sb)->posix_extensions;

	bool reparse_need_reval = false;

	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);

	int rc;
@@ -85,7 +87,21 @@ cifs_prime_dcache(struct dentry *parent, struct qstr *name, 
		 * this spares us an invalidation.

		 */

retry:

		if ((fattr->cf_cifsattrs & ATTR_REPARSE) ||

		if (posix) {

			switch (fattr->cf_mode & S_IFMT) {

			case S_IFLNK:

			case S_IFBLK:

			case S_IFCHR:

				reparse_need_reval = true;

				break;

			default:

				break;

			}

		} else if (fattr->cf_cifsattrs & ATTR_REPARSE) {

			reparse_need_reval = true;

		}



		if (reparse_need_reval ||

		    (fattr->cf_flags & CIFS_FATTR_NEED_REVAL))

			return;