From: Darrick J. Wong <djwong@kernel.org>
Date: Mon, 22 Apr 2024 17:00:52 +0000 (-0700)
Subject: xfs: create a predicate to determine if two xfs_names are the same
X-Git-Tag: v6.9.0~18^2~101
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=415b613307938244aceac7850491aa2135209778;p=thirdparty%2Fxfsprogs-dev.git

xfs: create a predicate to determine if two xfs_names are the same

Source kernel commit: d9c0775897147bab54410611ac2659a7477c770c

Create a simple predicate to determine if two xfs_names are the same
objects or have the exact same name.  The comparison is always case
sensitive.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
---

diff --git a/libxfs/xfs_dir2.h b/libxfs/xfs_dir2.h
index 7d7cd8d8..8497d041 100644
--- a/libxfs/xfs_dir2.h
+++ b/libxfs/xfs_dir2.h
@@ -24,6 +24,18 @@ struct xfs_dir3_icleaf_hdr;
 extern const struct xfs_name	xfs_name_dotdot;
 extern const struct xfs_name	xfs_name_dot;
 
+static inline bool
+xfs_dir2_samename(
+	const struct xfs_name	*n1,
+	const struct xfs_name	*n2)
+{
+	if (n1 == n2)
+		return true;
+	if (n1->len != n2->len)
+		return false;
+	return !memcmp(n1->name, n2->name, n1->len);
+}
+
 /*
  * Convert inode mode to directory entry filetype
  */