[f2fs-dev] [PATCH] dump.f2fs: support dump version_bitmap and chksum in checkpoint

[Chao Yu via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net>]

dump.f2fs -d 1 img

...
checksum                      		[0x829fb462 : 2191504482]
nat_version_bitmap[0]         		[0x       0 : 0]
nat_version_bitmap[1]         		[0x       0 : 0]
nat_version_bitmap[2]         		[0x       0 : 0]
...
nat_version_bitmap[463]       		[0x       0 : 0]
sit_version_bitmap[0]         		[0x       0 : 0]
sit_version_bitmap[1]         		[0x       0 : 0]
sit_version_bitmap[2]         		[0x       0 : 0]
sit_version_bitmap[3]         		[0x       0 : 0]
...
sit_version_bitmap[47]        		[0x       0 : 0]

Signed-off-by: Chao Yu <chao@kernel.org>
---
 fsck/mount.c | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/fsck/mount.c b/fsck/mount.c
index e7c4069..6648c69 100644
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -563,6 +563,33 @@ printout:
 	printf("\n");
 }
 
+void print_chksum(struct f2fs_checkpoint *cp)
+{
+	unsigned int crc = le32_to_cpu(*(__le32 *)((unsigned char *)cp +
+						get_cp(checksum_offset)));
+
+	printf("%-30s" "\t\t[0x%8x : %u]\n", "checksum", crc, crc);
+}
+
+void print_version_bitmap(struct f2fs_sb_info *sbi)
+{
+	char str[30];
+	int i, j;
+
+	for (i = NAT_BITMAP; i <= SIT_BITMAP; i++) {
+		unsigned int *bitmap = __bitmap_ptr(sbi, i);
+		unsigned int size = round_up(__bitmap_size(sbi, i), 4);
+
+		for (j = 0; j < size; j++) {
+			snprintf(str, 31, "%s[%d]", i == NAT_BITMAP ?
+						"nat_version_bitmap" :
+						"sit_version_bitmap", j);
+			printf("%-30s" "\t\t[0x%8x : %u]\n", str,
+						bitmap[i], bitmap[i]);
+		}
+	}
+}
+
 void print_ckpt_info(struct f2fs_sb_info *sbi)
 {
 	struct f2fs_checkpoint *cp = F2FS_CKPT(sbi);
@@ -618,7 +645,9 @@ printout:
 	DISP_u32(cp, checksum_offset);
 	DISP_u64(cp, elapsed_time);
 
-	DISP_u32(cp, sit_nat_version_bitmap[0]);
+	print_chksum(cp);
+	print_version_bitmap(sbi);
+
 	printf("\n\n");
 }
 
-- 
2.49.0



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