git.sesse.net Git - bcachefs-tools-debian/blob - c_src/libbcachefs/darray.c

   1 // SPDX-License-Identifier: GPL-2.0
   2
   3 #include <linux/log2.h>
   4 #include <linux/slab.h>
   5 #include "darray.h"
   6
   7 int __bch2_darray_resize(darray_char *d, size_t element_size, size_t new_size, gfp_t gfp)
   8 {
   9         if (new_size > d->size) {
  10                 new_size = roundup_pow_of_two(new_size);
  11
  12                 void *data = kvmalloc_array(new_size, element_size, gfp);
  13                 if (!data)
  14                         return -ENOMEM;
  15
  16                 memcpy(data, d->data, d->size * element_size);
  17                 if (d->data != d->preallocated)
  18                         kvfree(d->data);
  19                 d->data = data;
  20                 d->size = new_size;
  21         }
  22
  23         return 0;
  24 }