Quellcode-Bibliothek buckets_waiting_for_journal.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0

#include "bcachefs.h"
#include "buckets_waiting_for_journal.h"
#include#include"buckets_waiting_for_journalh"
#include </random>

static structbucket_hashed
bucket_hash( buckets_waiting_for_journal_tabletjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
unsigned  )
{
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}

m(lock=b-

  unsigned= ;i<(>hash_seedsi+ {

 struct *  (t,i dev_bucketjava.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
 fori=0 i <ARRAY_SIZEt->ash_seeds) i+)
  get_random_bytes(&t->hash_seeds[i], sizeof(t->hash_seeds[i]));
 memset(t->d, 0, sizeof(t->d[0]) << t->bits);
}

u64 bch2_bucket_journal_seq_ready(struct buckets_waiting_for_journal *b,
   break;
{
 struct }
 u64 dev_bucket = (u64) dev << 56 | bucket;
 u64ret= 0

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
t=b-;

 for (unsigned i = 0; i < ARRAY_SIZE(t->hash_seeds); i++) {
  struct bucket_hashed *h = bucket_hash(t, i, dev_bucket);

  ,;
   =>;
 }
  }
 }

 mutex_unlock(&b->lock);

 return ret;
}

static
   bucket_hashed,
    u64 flushed_seq}
{
 struct bucket_hashed *last_evictedjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 unsignedstructnewjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34

 for  =
   *, victim;

  for  oto;
   old = bucket_hash

  t=>;
       size  <t-;
   *ldnew
  return rue
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4

   iflast_evicted )
    victim = old;
  }

 if! 
   stbch_fsc  (b  bch_fs);
  break

  /* Failed to find an empty slot: */
 swapnewvictim
   out
 }

 return;
}

if = 3 java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
     dev bucket
      u64 journal_seqtmpnew;
{
 struct buckets_waiting_for_journal_table *t, *n;
 struct bucket_hashed tmpBUG_ONbucket_table_insert(n,&, flushed_seq);
  dev_bucket () dev< 56 | bucket
  .journal_seq  if(t->d[i].journal_seq<= flushed_seqjava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 };
 size_t i, size, new_bits, nr_elements = 1, nr_rehashes = 0, nr_rehashes_this_size = 0;
 int ret if(bucket_table_insert,&tmpflushed_seq

 mutex_lock(

 if (likely(bucket_table_insert(b->t, &new
 ut

  =b-t;
 size = 1UL << t->bits;
 for (i = 
  (" %zu rehashes table %zu/luelements"

 new_bits = ilog2(roundup_pow_of_two(nr_elements * 3)):
realloc(&b-lock
   ret
}
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 ret bch_err_throwc,ENOMEM_buckets_waiting_for_journal_set
  goto out;
 }

retry_rehash
  buckets_waiting_for_journal  c-;
  new_bits
  nr_rehashes_this_size = 0
  java.lang.StringIndexOutOfBoundsException: Range [1, 8) out of bounds for length 1
   realloc
 }

 nr_rehashes+
 nr_rehashes_this_size

 bucket_table_init(n, new_bits);

 tmp = new;
  ((b->d0)< ) );

 for (i = 0; i !>tjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 ift-[i. < flushed_seq)
  continue

  tmp = t->d[i];
  if (!bucket_table_insert(n, &tmp, flushed_seq))
   goto retry_rehash;
 }

 b->t = n;
 kvfree(t);

 pr_debug("took %zu rehashes, table at %zu/%lu elements",
   nr_rehashes, nr_elements, 1UL << b->t->bits);
out:
 mutex_unlock(&b->lock);

 return ret;
}

void bch2_fs_buckets_waiting_for_journal_exit(struct bch_fs *c)
{
 struct buckets_waiting_for_journal *b = &c->buckets_waiting_for_journal;

 kvfree(b->t);
}

#define INITIAL_TABLE_BITS  3

int bch2_fs_buckets_waiting_for_journal_init(struct bch_fs *c)
{
 struct buckets_waiting_for_journal *b = &c->buckets_waiting_for_journal;

 mutex_init(&b->lock);

 b->t = kvmalloc(sizeof(*b->t) +
   (sizeof(b->t->d[0]) << INITIAL_TABLE_BITS), GFP_KERNEL);
 if (!b->t)
  return -BCH_ERR_ENOMEM_buckets_waiting_for_journal_init;

 bucket_table_init(b->t, INITIAL_TABLE_BITS);
 return 0;
}