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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:57 +0000 |
commit | dc50eab76b709d68175a358d6e23a5a3890764d3 (patch) | |
tree | c754d0390db060af0213ff994f0ac310e4cfd6e9 /fs/bcachefs/keylist.c | |
parent | Adding debian version 6.6.15-2. (diff) | |
download | linux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip |
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'fs/bcachefs/keylist.c')
-rw-r--r-- | fs/bcachefs/keylist.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/fs/bcachefs/keylist.c b/fs/bcachefs/keylist.c new file mode 100644 index 0000000000..5699cd4873 --- /dev/null +++ b/fs/bcachefs/keylist.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include "bcachefs.h" +#include "bkey.h" +#include "keylist.h" + +int bch2_keylist_realloc(struct keylist *l, u64 *inline_u64s, + size_t nr_inline_u64s, size_t new_u64s) +{ + size_t oldsize = bch2_keylist_u64s(l); + size_t newsize = oldsize + new_u64s; + u64 *old_buf = l->keys_p == inline_u64s ? NULL : l->keys_p; + u64 *new_keys; + + newsize = roundup_pow_of_two(newsize); + + if (newsize <= nr_inline_u64s || + (old_buf && roundup_pow_of_two(oldsize) == newsize)) + return 0; + + new_keys = krealloc(old_buf, sizeof(u64) * newsize, GFP_NOFS); + if (!new_keys) + return -ENOMEM; + + if (!old_buf) + memcpy_u64s(new_keys, inline_u64s, oldsize); + + l->keys_p = new_keys; + l->top_p = new_keys + oldsize; + + return 0; +} + +void bch2_keylist_pop_front(struct keylist *l) +{ + l->top_p -= bch2_keylist_front(l)->k.u64s; + + memmove_u64s_down(l->keys, + bkey_next(l->keys), + bch2_keylist_u64s(l)); +} + +#ifdef CONFIG_BCACHEFS_DEBUG +void bch2_verify_keylist_sorted(struct keylist *l) +{ + struct bkey_i *k; + + for_each_keylist_key(l, k) + BUG_ON(bkey_next(k) != l->top && + bpos_ge(k->k.p, bkey_next(k)->k.p)); +} +#endif |