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readahead: size_t is 32 bits on ILP32 platforms

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Cast size_t so it matches uint64_t for the std::min template.

Fixes: https://github.com/Zygo/bees/issues/323
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2025-09-12 01:42:48 -04:00
parent ba11d733c0
commit 5a36a2ce9c
1 changed files with 2 additions and 2 deletions
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src/bees.cc
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@@ -255,12 +255,12 @@ bees_readahead_nolock(int const fd, const off_t offset, const size_t size)
// The btrfs kernel code does readahead with lower ioprio // The btrfs kernel code does readahead with lower ioprio
// and might discard the readahead request entirely. // and might discard the readahead request entirely.
BEESNOTE("emulating readahead " << name_fd(fd) << " offset " << to_hex(offset) << " len " << pretty(size)); BEESNOTE("emulating readahead " << name_fd(fd) << " offset " << to_hex(offset) << " len " << pretty(size));
auto working_size = min(size, uint64_t(128 * 1024 * 1024)); auto working_size = min(uint64_t(size), uint64_t(128 * 1024 * 1024));
auto working_offset = offset; auto working_offset = offset;
while (working_size) { while (working_size) {
// don't care about multithreaded writes to this buffer--it is garbage anyway // don't care about multithreaded writes to this buffer--it is garbage anyway
static uint8_t dummy[BEES_READAHEAD_SIZE]; static uint8_t dummy[BEES_READAHEAD_SIZE];
const size_t this_read_size = min(working_size, sizeof(dummy)); const size_t this_read_size = min(working_size, uint64_t(sizeof(dummy)));
// Ignore errors and short reads. It turns out our size // Ignore errors and short reads. It turns out our size
// parameter isn't all that accurate, so we can't use // parameter isn't all that accurate, so we can't use
// the pread_or_die template. // the pread_or_die template.