diff options
Diffstat (limited to 'meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-tmp/0001-Btrfs-progs-add-a-btrfs-select-super-command-to-over.patch')
| -rw-r--r-- | meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-tmp/0001-Btrfs-progs-add-a-btrfs-select-super-command-to-over.patch | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-tmp/0001-Btrfs-progs-add-a-btrfs-select-super-command-to-over.patch b/meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-tmp/0001-Btrfs-progs-add-a-btrfs-select-super-command-to-over.patch deleted file mode 100644 index 2102f08e96..0000000000 --- a/meta/recipes-devtools/btrfs-tools/btrfs-tools/upstream-tmp/0001-Btrfs-progs-add-a-btrfs-select-super-command-to-over.patch +++ /dev/null @@ -1,170 +0,0 @@ -Upstream-Status: Inappropriate [Backport] -From 70c6c10134b502fa69955746554031939b85fb0c Mon Sep 17 00:00:00 2001 -From: Chris Mason <chris.mason@oracle.com> -Date: Thu, 9 Dec 2010 16:36:29 -0500 -Subject: [PATCH 01/15] Btrfs-progs: add a btrfs-select-super command to overwrite the super - -Btrfs stores multiple copies of the superblock, and for common power-failure -crashes where barriers were not in use, one of the super copies is often -valid while the first copy is not. - -This adds a btrfs-select-super -s N /dev/xxx command, which can -overwrite all the super blocks with a copy that you have already -determined is valid with btrfsck -s - -Signed-off-by: Chris Mason <chris.mason@oracle.com> ---- - Makefile | 3 ++ - btrfs-select-super.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++ - disk-io.c | 2 +- - disk-io.h | 1 + - 4 files changed, 104 insertions(+), 1 deletions(-) - create mode 100644 btrfs-select-super.c - -diff --git a/Makefile b/Makefile -index 6e6f6c6..d65f6a2 100644 ---- a/Makefile -+++ b/Makefile -@@ -62,6 +62,9 @@ btrfs-debug-tree: $(objects) debug-tree.o - btrfs-zero-log: $(objects) btrfs-zero-log.o - gcc $(CFLAGS) -o btrfs-zero-log $(objects) btrfs-zero-log.o $(LDFLAGS) $(LIBS) - -+btrfs-select-super: $(objects) btrfs-select-super.o -+ gcc $(CFLAGS) -o btrfs-select-super $(objects) btrfs-select-super.o $(LDFLAGS) $(LIBS) -+ - btrfstune: $(objects) btrfstune.o - gcc $(CFLAGS) -o btrfstune $(objects) btrfstune.o $(LDFLAGS) $(LIBS) - -diff --git a/btrfs-select-super.c b/btrfs-select-super.c -new file mode 100644 -index 0000000..f12f36c ---- /dev/null -+++ b/btrfs-select-super.c -@@ -0,0 +1,99 @@ -+/* -+ * Copyright (C) 2007 Oracle. All rights reserved. -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public -+ * License v2 as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ * General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public -+ * License along with this program; if not, write to the -+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330, -+ * Boston, MA 021110-1307, USA. -+ */ -+ -+#define _XOPEN_SOURCE 500 -+#define _GNU_SOURCE 1 -+#include <stdio.h> -+#include <stdlib.h> -+#include <unistd.h> -+#include <fcntl.h> -+#include <sys/stat.h> -+#include "kerncompat.h" -+#include "ctree.h" -+#include "disk-io.h" -+#include "print-tree.h" -+#include "transaction.h" -+#include "list.h" -+#include "version.h" -+#include "utils.h" -+ -+static void print_usage(void) -+{ -+ fprintf(stderr, "usage: btrfs-select-super -s number dev\n"); -+ fprintf(stderr, "%s\n", BTRFS_BUILD_VERSION); -+ exit(1); -+} -+ -+int main(int ac, char **av) -+{ -+ struct btrfs_root *root; -+ int ret; -+ int num; -+ u64 bytenr = 0; -+ -+ while(1) { -+ int c; -+ c = getopt(ac, av, "s:"); -+ if (c < 0) -+ break; -+ switch(c) { -+ case 's': -+ num = atol(optarg); -+ bytenr = btrfs_sb_offset(num); -+ printf("using SB copy %d, bytenr %llu\n", num, -+ (unsigned long long)bytenr); -+ break; -+ default: -+ print_usage(); -+ } -+ } -+ ac = ac - optind; -+ -+ if (ac != 1) -+ print_usage(); -+ -+ if (bytenr == 0) { -+ fprintf(stderr, "Please select the super copy with -s\n"); -+ print_usage(); -+ } -+ -+ radix_tree_init(); -+ -+ if((ret = check_mounted(av[optind])) < 0) { -+ fprintf(stderr, "Could not check mount status: %s\n", strerror(ret)); -+ return ret; -+ } else if(ret) { -+ fprintf(stderr, "%s is currently mounted. Aborting.\n", av[optind]); -+ return -EBUSY; -+ } -+ -+ root = open_ctree(av[optind], bytenr, 1); -+ -+ if (root == NULL) -+ return 1; -+ -+ /* make the super writing code think we've read the first super */ -+ root->fs_info->super_bytenr = BTRFS_SUPER_INFO_OFFSET; -+ ret = write_all_supers(root); -+ -+ /* we don't close the ctree or anything, because we don't want a real -+ * transaction commit. We just want the super copy we pulled off the -+ * disk to overwrite all the other copies -+ */ -+ return ret; -+} -diff --git a/disk-io.c b/disk-io.c -index a6e1000..5bd9cfc 100644 ---- a/disk-io.c -+++ b/disk-io.c -@@ -828,7 +828,7 @@ int write_dev_supers(struct btrfs_root *root, struct btrfs_super_block *sb, - - if (root->fs_info->super_bytenr != BTRFS_SUPER_INFO_OFFSET) { - btrfs_set_super_bytenr(sb, root->fs_info->super_bytenr); -- -+printk("speiiiiiiiiiiiiiiiiiiiiiiiiiiiii\n"); - crc = ~(u32)0; - crc = btrfs_csum_data(NULL, (char *)sb + BTRFS_CSUM_SIZE, crc, - BTRFS_SUPER_INFO_SIZE - BTRFS_CSUM_SIZE); -diff --git a/disk-io.h b/disk-io.h -index 49e5692..7ebec24 100644 ---- a/disk-io.h -+++ b/disk-io.h -@@ -47,6 +47,7 @@ struct btrfs_root *open_ctree(const char *filename, u64 sb_bytenr, int writes); - struct btrfs_root *open_ctree_fd(int fp, const char *path, u64 sb_bytenr, - int writes); - int close_ctree(struct btrfs_root *root); -+int write_all_supers(struct btrfs_root *root); - int write_ctree_super(struct btrfs_trans_handle *trans, - struct btrfs_root *root); - int btrfs_read_dev_super(int fd, struct btrfs_super_block *sb, u64 sb_bytenr); --- -1.7.2.3 - |