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50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include "bcachefs.h"
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#include "bkey.h"
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#include "keylist.h"
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int bch2_keylist_realloc(struct keylist *l, u64 *inline_u64s,
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size_t nr_inline_u64s, size_t new_u64s)
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{
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size_t oldsize = bch2_keylist_u64s(l);
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size_t newsize = oldsize + new_u64s;
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u64 *old_buf = l->keys_p == inline_u64s ? NULL : l->keys_p;
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u64 *new_keys;
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newsize = roundup_pow_of_two(newsize);
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if (newsize <= nr_inline_u64s ||
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(old_buf && roundup_pow_of_two(oldsize) == newsize))
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return 0;
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new_keys = krealloc(old_buf, sizeof(u64) * newsize, GFP_NOFS);
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if (!new_keys)
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return -ENOMEM;
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if (!old_buf)
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memcpy_u64s(new_keys, inline_u64s, oldsize);
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l->keys_p = new_keys;
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l->top_p = new_keys + oldsize;
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return 0;
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}
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void bch2_keylist_pop_front(struct keylist *l)
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{
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l->top_p -= bch2_keylist_front(l)->k.u64s;
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memmove_u64s_down(l->keys,
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bkey_next(l->keys),
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bch2_keylist_u64s(l));
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}
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#ifdef CONFIG_BCACHEFS_DEBUG
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void bch2_verify_keylist_sorted(struct keylist *l)
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{
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for_each_keylist_key(l, k)
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BUG_ON(bkey_next(k) != l->top &&
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bpos_ge(k->k.p, bkey_next(k)->k.p));
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}
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#endif
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