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btrfs: use the token::eb for all set/get helpers 

The token stores a copy of the extent buffer pointer but does not make
any use of it besides sanity checks. We can use it and drop the eb
parameter from several functions, this patch only switches the use
inside the set/get helpers.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2020-04-29 02:13:57 +02:00
parent f2998ebd32
commit 4dae666a62
1 changed files with 4 additions and 4 deletions
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8
fs/btrfs/struct-funcs.c
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@ -62,12 +62,12 @@ u##bits btrfs_get_token_##bits(const struct extent_buffer *eb, \
res = get_unaligned_le##bits(p + off); \
return res; \
} \
err = map_private_extent_buffer(eb, offset, size, \
err = map_private_extent_buffer(token->eb, offset, size, \
&kaddr, &map_start, &map_len); \
if (err) { \
__le##bits leres; \
\
read_extent_buffer(eb, &leres, offset, size); \
read_extent_buffer(token->eb, &leres, offset, size); \
return le##bits##_to_cpu(leres); \
} \
p = kaddr + part_offset - map_start; \
@ -125,13 +125,13 @@ void btrfs_set_token_##bits(struct extent_buffer *eb, \
put_unaligned_le##bits(val, p + off); \
return; \
} \
err = map_private_extent_buffer(eb, offset, size, \
err = map_private_extent_buffer(token->eb, offset, size, \
&kaddr, &map_start, &map_len); \
if (err) { \
__le##bits val2; \
\
val2 = cpu_to_le##bits(val); \
write_extent_buffer(eb, &val2, offset, size); \
write_extent_buffer(token->eb, &val2, offset, size); \
return; \
} \
p = kaddr + part_offset - map_start; \