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btrfs: print-tree: print missing fields for inode items

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We are not dumping a lot of fields for an inode item which are useful for
debugging whenever we dump a leaf (log replay failure for example), so add
them and make it as close as possible to the print tree implementation in
btrfs-progs (things like converting timespecs to human readable dates and
converting flags to strings are missing since they are not so practical to
do in the kernel).

Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana
2025-09-10 15:11:41 +01:00
committed by David Sterba
parent aab9458b9f
commit ac9affd899
1 changed files with 31 additions and 6 deletions
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37
fs/btrfs/print-tree.c
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@@ -227,6 +227,36 @@ static void print_eb_refs_lock(const struct extent_buffer *eb)
#endif
}
static void print_timespec(const struct extent_buffer *eb,
struct btrfs_timespec *timespec,
const char *prefix, const char *suffix)
{
const u64 secs = btrfs_timespec_sec(eb, timespec);
const u32 nsecs = btrfs_timespec_nsec(eb, timespec);
pr_info("%s%llu.%u%s", prefix, secs, nsecs, suffix);
}
static void print_inode_item(const struct extent_buffer *eb, int i)
{
struct btrfs_inode_item *ii = btrfs_item_ptr(eb, i, struct btrfs_inode_item);
pr_info("\t\tinode generation %llu transid %llu size %llu nbytes %llu\n",
btrfs_inode_generation(eb, ii), btrfs_inode_transid(eb, ii),
btrfs_inode_size(eb, ii), btrfs_inode_nbytes(eb, ii));
pr_info("\t\tblock group %llu mode %o links %u uid %u gid %u\n",
btrfs_inode_block_group(eb, ii), btrfs_inode_mode(eb, ii),
btrfs_inode_nlink(eb, ii), btrfs_inode_uid(eb, ii),
btrfs_inode_gid(eb, ii));
pr_info("\t\trdev %llu sequence %llu flags 0x%llx\n",
btrfs_inode_rdev(eb, ii), btrfs_inode_sequence(eb, ii),
btrfs_inode_flags(eb, ii));
print_timespec(eb, &ii->atime, "\t\tatime ", "\n");
print_timespec(eb, &ii->ctime, "\t\tctime ", "\n");
print_timespec(eb, &ii->mtime, "\t\tmtime ", "\n");
print_timespec(eb, &ii->otime, "\t\totime ", "\n");
}
void btrfs_print_leaf(const struct extent_buffer *l)
{
struct btrfs_fs_info *fs_info;
@@ -234,7 +264,6 @@ void btrfs_print_leaf(const struct extent_buffer *l)
u32 type, nr;
struct btrfs_root_item *ri;
struct btrfs_dir_item *di;
struct btrfs_inode_item *ii;
struct btrfs_block_group_item *bi;
struct btrfs_file_extent_item *fi;
struct btrfs_extent_data_ref *dref;
@@ -262,11 +291,7 @@ void btrfs_print_leaf(const struct extent_buffer *l)
btrfs_item_offset(l, i), btrfs_item_size(l, i));
switch (type) {
case BTRFS_INODE_ITEM_KEY:
ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
pr_info("\t\tinode generation %llu size %llu mode %o\n",
btrfs_inode_generation(l, ii),
btrfs_inode_size(l, ii),
btrfs_inode_mode(l, ii));
print_inode_item(l, i);
break;
case BTRFS_DIR_ITEM_KEY:
di = btrfs_item_ptr(l, i, struct btrfs_dir_item);