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btrfs-progs: dump-tree: print dev stats 

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2016-11-02 02:06:13 +01:00
parent 0f4ab474fe
commit cf5c55fba8
1 changed files with 28 additions and 1 deletions
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29
print-tree.c
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@ -1009,6 +1009,31 @@ static void print_balance_item(struct extent_buffer *eb,
print_disk_balance_args(btrfs_balance_item_sys(eb, bi));
}
static void print_dev_stats(struct extent_buffer *eb,
struct btrfs_dev_stats_item *stats, u32 size)
{
int i;
u32 known = BTRFS_DEV_STAT_VALUES_MAX * sizeof(__le64);
__le64 *values = btrfs_dev_stats_values(eb, stats);
printf("\t\tdevice stats\n");
printf("\t\twrite_errs %llu read_errs %llu flush_errs %llu corruption_errs %llu generation %llu\n",
(unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_WRITE_ERRS]),
(unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_READ_ERRS]),
(unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_FLUSH_ERRS]),
(unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_CORRUPTION_ERRS]),
(unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_GENERATION_ERRS]));
if (known < size) {
printf("\t\tunknown stats item bytes %u", size - known);
for (i = BTRFS_DEV_STAT_VALUES_MAX; i * sizeof(__le64) < size; i++) {
printf("\t\tunknown item %u offset %lu value %llu\n",
i, i * sizeof(__le64),
(unsigned long long)le64_to_cpu(values[i]));
}
}
}
void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
{
int i;
@ -1264,7 +1289,9 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
printf(" offset %llu\n", (unsigned long long)offset);
switch (objectid) {
case BTRFS_DEV_STATS_OBJECTID:
printf("\t\tdevice stats\n");
print_dev_stats(l, btrfs_item_ptr(l, i,
struct btrfs_dev_stats_item),
btrfs_item_size(l, item));
break;
default:
printf("\t\tunknown persistent item objectid %llu\n",