grow command can't update chunksize

Resolves: RHEL-92288

Signed-off-by: Xiao Ni <xni@redhat.com>

mdadm-use-standard-libc-nftw.patch

@@ -0,0 +1,53 @@
+commit e549ac6ab2ce5e7ec182310f8f5f2e41c6ac9233
+Author: Xiao Ni <xni@redhat.com>
+Date:   Wed May 7 18:06:59 2025 +0800
+
+    mdadm: use standard libc nftw
+    
+    commit bd648e3bec3d ("mdadm: Remove klibc and uclibc support") removes
+    macro HAVE_NFTW/HAVE_FTW and uses libc header ftw.h. But it leaves the
+    codes in lib.c which let mdadm command call nftw defined in lib.c. It
+    needs to remove these codes.
+    
+    The bug can be reproduced by:
+    mdadm -CR /dev/md0 --level raid5 --metadata=1.1 --chunk=32 --raid-disks 3
+    --size 10000 /dev/loop1 /dev/loop2 /dev/loop3
+    mdadm /dev/md0 --grow --chunk=64
+    mdadm: /dev/md0: cannot open component -unknown-
+    
+    Fixes: bd648e3bec3d ("mdadm: Remove klibc and uclibc support")
+    Signed-off-by: Xiao Ni <xni@redhat.com>
+
+diff --git a/lib.c b/lib.c
+index f36ae03a..eb6cc119 100644
+--- a/lib.c
++++ b/lib.c
+@@ -245,28 +245,6 @@ int add_dev(const char *name, const struct stat *stb, int flag, struct FTW *s)
+ 	return 0;
+ }
+ 
+-#ifndef HAVE_NFTW
+-#ifdef HAVE_FTW
+-int add_dev_1(const char *name, const struct stat *stb, int flag)
+-{
+-	return add_dev(name, stb, flag, NULL);
+-}
+-int nftw(const char *path,
+-	 int (*han)(const char *name, const struct stat *stb,
+-		    int flag, struct FTW *s), int nopenfd, int flags)
+-{
+-	return ftw(path, add_dev_1, nopenfd);
+-}
+-#else
+-int nftw(const char *path,
+-	 int (*han)(const char *name, const struct stat *stb,
+-		    int flag, struct FTW *s), int nopenfd, int flags)
+-{
+-	return 0;
+-}
+-#endif /* HAVE_FTW */
+-#endif /* HAVE_NFTW */
+-
+ /*
+  * Find a block device with the right major/minor number.
+  * If we find multiple names, choose the shortest.

mdadm.spec

@@ -3,7 +3,7 @@
 Name:        mdadm
 Version:     4.4
 # extraversion is used to define rhel internal version
-%define extraversion 1
+%define extraversion 2
 Release:     %{extraversion}%{?dist}
 Summary:     The mdadm program controls Linux md devices (software RAID arrays)
 URL:         https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git
@@ -58,6 +58,7 @@ Patch033:    0034-Update-README.md.patch
 Patch034:    0035-mdadm-Remove-klibc-and-uclibc-support.patch
 Patch035:    0036-mdadm-include-asm-byteorder.h.patch
 Patch036:    0037-mdadm-use-kernel-raid-headers.patch
+Patch037:    mdadm-use-standard-libc-nftw.patch
 
 # Fedora customization patches
 Patch196:    mdadm-fix-building-errors.patch
@@ -142,6 +143,10 @@ install -m644 %{SOURCE5} %{buildroot}/etc/libreport/events.d
 /usr/share/mdadm/mdcheck
 
 %changelog
+* Mon May 19 2025 Xiao Ni <xni@redhat.com> - 4.4-2
+- grow command can't update chunksize
+- Resolves: RHEL-92288
+
 * Wed Apr 30 2025 Xiao Ni <xni@redhat.com> - 4.4-1
 - Update to mdadm 4.4 and latest upstream
 - Resolves: RHEL-86676, RHEL-72803, RHEL-88793, RHEL-88791