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bcachefs: bch2_alloc_v4_to_text()

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Specialize the .to_text() for alloc_v4, to avoid the temporary on the
stack for conversion from old versions.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2025-05-26 14:24:19 -04:00
parent 0c34e7ff69
commit eabef52ff8
2 changed files with 18 additions and 5 deletions
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20
fs/bcachefs/alloc_background.c
View File

@ -337,11 +337,10 @@ void bch2_alloc_v4_swab(struct bkey_s k)
a->stripe_sectors = swab32(a->stripe_sectors);
}
void bch2_alloc_to_text(struct printbuf *out, struct bch_fs *c, struct bkey_s_c k)
static inline void __bch2_alloc_v4_to_text(struct printbuf *out, struct bch_fs *c,
unsigned dev, const struct bch_alloc_v4 *a)
{
struct bch_alloc_v4 _a;
const struct bch_alloc_v4 *a = bch2_alloc_to_v4(k, &_a);
struct bch_dev *ca = c ? bch2_dev_bucket_tryget_noerror(c, k.k->p) : NULL;
struct bch_dev *ca = c ? bch2_dev_tryget_noerror(c, dev) : NULL;
prt_newline(out);
printbuf_indent_add(out, 2);
@ -369,6 +368,19 @@ void bch2_alloc_to_text(struct printbuf *out, struct bch_fs *c, struct bkey_s_c
bch2_dev_put(ca);
}
void bch2_alloc_to_text(struct printbuf *out, struct bch_fs *c, struct bkey_s_c k)
{
struct bch_alloc_v4 _a;
const struct bch_alloc_v4 *a = bch2_alloc_to_v4(k, &_a);
__bch2_alloc_v4_to_text(out, c, k.k->p.inode, a);
}
void bch2_alloc_v4_to_text(struct printbuf *out, struct bch_fs *c, struct bkey_s_c k)
{
__bch2_alloc_v4_to_text(out, c, k.k->p.inode, bkey_s_c_to_alloc_v4(k).v);
}
void __bch2_alloc_to_v4(struct bkey_s_c k, struct bch_alloc_v4 *out)
{
if (k.k->type == KEY_TYPE_alloc_v4) {

3
fs/bcachefs/alloc_background.h
View File

@ -253,6 +253,7 @@ int bch2_alloc_v4_validate(struct bch_fs *, struct bkey_s_c,
struct bkey_validate_context);
void bch2_alloc_v4_swab(struct bkey_s);
void bch2_alloc_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
void bch2_alloc_v4_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
#define bch2_bkey_ops_alloc ((struct bkey_ops) { \
.key_validate = bch2_alloc_v1_validate, \
@ -277,7 +278,7 @@ void bch2_alloc_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
#define bch2_bkey_ops_alloc_v4 ((struct bkey_ops) { \
.key_validate = bch2_alloc_v4_validate, \
.val_to_text = bch2_alloc_to_text, \
.val_to_text = bch2_alloc_v4_to_text, \
.swab = bch2_alloc_v4_swab, \
.trigger = bch2_trigger_alloc, \
.min_val_size = 48, \