[v4,02/12] btrfs-progs: cache csum_type in recover_control
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Message ID 20190903150046.14926-3-jthumshirn@suse.de
State New
Headers show
Series
  • btrfs-progs: support xxhash64 checksums
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Commit Message

Johannes Thumshirn Sept. 3, 2019, 3 p.m. UTC
Cache the super-block's checksum type field in 'struct recover_control'.
This will be needed for further refactoring the checksum handling.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
---
 cmds/rescue-chunk-recover.c | 2 ++
 ctree.h                     | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

Patch
diff mbox series

diff --git a/cmds/rescue-chunk-recover.c b/cmds/rescue-chunk-recover.c
index c9b268781159..1959a2047c17 100644
--- a/cmds/rescue-chunk-recover.c
+++ b/cmds/rescue-chunk-recover.c
@@ -47,6 +47,7 @@  struct recover_control {
 	int yes;
 
 	u16 csum_size;
+	u16 csum_type;
 	u32 sectorsize;
 	u32 nodesize;
 	u64 generation;
@@ -1530,6 +1531,7 @@  static int recover_prepare(struct recover_control *rc, const char *path)
 	rc->generation = btrfs_super_generation(sb);
 	rc->chunk_root_generation = btrfs_super_chunk_root_generation(sb);
 	rc->csum_size = btrfs_super_csum_size(sb);
+	rc->csum_type = btrfs_super_csum_type(sb);
 
 	/* if seed, the result of scanning below will be partial */
 	if (btrfs_super_flags(sb) & BTRFS_SUPER_FLAG_SEEDING) {
diff --git a/ctree.h b/ctree.h
index 0d12563b7261..870d9f4948de 100644
--- a/ctree.h
+++ b/ctree.h
@@ -165,7 +165,9 @@  struct btrfs_free_space_ctl;
 #define BTRFS_CSUM_SIZE 32
 
 /* csum types */
-#define BTRFS_CSUM_TYPE_CRC32	0
+enum btrfs_csum_type {
+	BTRFS_CSUM_TYPE_CRC32	= 0,
+};
 
 /* four bytes for CRC32 */
 static int btrfs_csum_sizes[] = { 4 };