mdadm: Use _FILE_OFFSET_BITS to use largefile support

(From OE-Core rev: 5aabfacf7823b90fb61400b670989f77a89c7e5b)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 148 insertions, 0 deletions

diff --git a/meta/recipes-extended/mdadm/files/0001-restripe.c-Use-_FILE_OFFSET_BITS-to-enable-largefile.patch b/meta/recipes-extended/mdadm/files/0001-restripe.c-Use-_FILE_OFFSET_BITS-to-enable-largefile.patch
new file mode 100644
index 0000000000..142ed355ef
--- /dev/null
+++ b/meta/recipes-extended/mdadm/files/0001-restripe.c-Use-_FILE_OFFSET_BITS-to-enable-largefile.patch
@@ -0,0 +1,147 @@
+From 6b861a267a6ef6f60f6cc21e4c8e6d7cdd2451dc Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 10 Nov 2022 12:31:22 -0800
+Subject: [PATCH] restripe.c: Use _FILE_OFFSET_BITS to enable largefile support
+
+Instead of using the lseek64 and friends, its better to enable it via
+the feature macro _FILE_OFFSET_BITS = 64 and let the C library deal with
+the width of types
+
+Upstream-Status: Submitted [https://lore.kernel.org/linux-raid/20221110225546.337164-1-raj.khem@gmail.com/]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ restripe.c | 13 ++++++++-----
+ 1 file changed, 8 insertions(+), 5 deletions(-)
+
+--- a/restripe.c
++++ b/restripe.c
+@@ -22,6 +22,9 @@
+  *    Email: <neilb@suse.de>
+  */
+ 
++/* Enable largefile support */
++#define _FILE_OFFSET_BITS 64
++
+ #include "mdadm.h"
+ #include <stdint.h>
+ 
+@@ -581,7 +584,7 @@ int save_stripes(int *source, unsigned l
+                                       raid_disks, level, layout);
+                        if (dnum < 0) abort();
+                        if (source[dnum] < 0 ||
+-                           lseek64(source[dnum],
++                           lseek(source[dnum],
+                                    offsets[dnum] + offset, 0) < 0 ||
+                            read(source[dnum], buf+disk * chunk_size,
+                                 chunk_size) != chunk_size) {
+@@ -754,8 +757,8 @@ int restore_stripes(int *dest, unsigned
+                                           raid_disks, level, layout);
+                        if (src_buf == NULL) {
+                                /* read from file */
+-                               if (lseek64(source, read_offset, 0) !=
+-                                        (off64_t)read_offset) {
++                               if (lseek(source, read_offset, 0) !=
++                                        (off_t)read_offset) {
+                                        rv = -1;
+                                        goto abort;
+                                }
+@@ -816,7 +819,7 @@ int restore_stripes(int *dest, unsigned
+                }
+                for (i=0; i < raid_disks ; i++)
+                        if (dest[i] >= 0) {
+-                               if (lseek64(dest[i],
++                               if (lseek(dest[i],
+                                         offsets[i]+offset, 0) < 0) {
+                                        rv = -1;
+                                        goto abort;
+@@ -866,7 +869,7 @@ int test_stripes(int *source, unsigned l
+                int disk;
+ 
+                for (i = 0 ; i < raid_disks ; i++) {
+-                       if ((lseek64(source[i], offsets[i]+start, 0) < 0) ||
++                       if ((lseek(source[i], offsets[i]+start, 0) < 0) ||
+                            (read(source[i], stripes[i], chunk_size) !=
+                             chunk_size)) {
+                                free(q);
+--- a/raid6check.c
++++ b/raid6check.c
+@@ -22,6 +22,9 @@
+  *    Based on "restripe.c" from "mdadm" codebase
+  */
+ 
++/* Enable largefile support */
++#define _FILE_OFFSET_BITS 64
++
+ #include "mdadm.h"
+ #include <stdint.h>
+ #include <signal.h>
+@@ -279,9 +282,9 @@ int manual_repair(int chunk_size, int sy
+        }
+ 
+        int write_res1, write_res2;
+-       off64_t seek_res;
++       off_t seek_res;
+ 
+-       seek_res = lseek64(source[fd1],
++       seek_res = lseek(source[fd1],
+                           offsets[fd1] + start * chunk_size, SEEK_SET);
+        if (seek_res < 0) {
+                fprintf(stderr, "lseek failed for failed_disk1\n");
+@@ -289,7 +292,7 @@ int manual_repair(int chunk_size, int sy
+        }
+        write_res1 = write(source[fd1], blocks[failed_slot1], chunk_size);
+ 
+-       seek_res = lseek64(source[fd2],
++       seek_res = lseek(source[fd2],
+                           offsets[fd2] + start * chunk_size, SEEK_SET);
+        if (seek_res < 0) {
+                fprintf(stderr, "lseek failed for failed_disk2\n");
+@@ -374,7 +377,7 @@ int check_stripes(struct mdinfo *info, i
+                        goto exitCheck;
+                }
+                for (i = 0 ; i < raid_disks ; i++) {
+-                       off64_t seek_res = lseek64(source[i], offsets[i] + start * chunk_size,
++                       off_t seek_res = lseek(source[i], offsets[i] + start * chunk_size,
+                                                   SEEK_SET);
+                        if (seek_res < 0) {
+                                fprintf(stderr, "lseek to source %d failed\n", i);
+--- a/swap_super.c
++++ b/swap_super.c
+@@ -1,3 +1,6 @@
++/* Enable largefile support */
++#define _FILE_OFFSET_BITS 64
++
+ #include <unistd.h>
+ #include <stdlib.h>
+ #include <fcntl.h>
+@@ -16,8 +19,6 @@
+ 
+ #define MD_NEW_SIZE_SECTORS(x)         ((x & ~(MD_RESERVED_SECTORS - 1)) - MD_RESERVED_SECTORS)
+ 
+-extern long long lseek64(int, long long, int);
+-
+ int main(int argc, char *argv[])
+ {
+        int fd, i;
+@@ -38,8 +39,8 @@ int main(int argc, char *argv[])
+                exit(1);
+        }
+        offset = MD_NEW_SIZE_SECTORS(size) * 512LL;
+-       if (lseek64(fd, offset, 0) < 0LL) {
+-               perror("lseek64");
++       if (lseek(fd, offset, 0) < 0LL) {
++               perror("lseek");
+                exit(1);
+        }
+        if (read(fd, super, 4096) != 4096) {
+@@ -68,8 +69,8 @@ int main(int argc, char *argv[])
+                super[32*4+10*4 +i] = t;
+        }
+ 
+-       if (lseek64(fd, offset, 0) < 0LL) {
+-               perror("lseek64");
++       if (lseek(fd, offset, 0) < 0LL) {
++               perror("lseek");
+                exit(1);
+        }
+        if (write(fd, super, 4096) != 4096) {
diff --git a/meta/recipes-extended/mdadm/mdadm_4.2.bb b/meta/recipes-extended/mdadm/mdadm_4.2.bb
index 19035caaec..7298860241 100644
--- a/meta/recipes-extended/mdadm/mdadm_4.2.bb
+++ b/meta/recipes-extended/mdadm/mdadm_4.2.bb
@@ -24,6 +24,7 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/utils/raid/mdadm/${BPN}-${PV}.tar.xz \
            file://0001-mdadm-skip-test-11spare-migration.patch \
            file://0001-Fix-parsing-of-r-in-monitor-manager-mode.patch \
            file://0001-Makefile-install-mdcheck.patch \
+           file://0001-restripe.c-Use-_FILE_OFFSET_BITS-to-enable-largefile.patch \
            "
 
 SRC_URI[sha256sum] = "461c215670864bb74a4d1a3620684aa2b2f8296dffa06743f26dda5557acf01d"