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Give better posix_fadvise

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This commit is contained in:
Marko Mäkelä
2026-10-19 12:01:48 +03:00
parent 67de2c5065
commit 1007624bf6
2 changed files with 10 additions and 10 deletions
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4
sql/sql_backup.cc
View File

@@ -161,8 +161,8 @@ static ssize_t pread_write(backup::handle in_fd, backup_fd out_fd,
int copy_entire_file(int src, int dst) noexcept
{
uint64_t end(lseek(src, 0, SEEK_END));
#ifdef POSIX_FADV_DONTNEED
std::ignore= posix_fadvise(dst, 0, 0, POSIX_FADV_DONTNEED);
#ifdef POSIX_FADV_NOREUSE
std::ignore= posix_fadvise(dst, 0, 0, POSIX_FADV_NOREUSE);
#endif
int ret;
# ifdef copy_file_shortcut

16
storage/innobase/handler/backup_innodb.cc
View File

@@ -350,8 +350,8 @@ private:
O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0666);
if (log >= 0)
{
# ifdef POSIX_FADV_DONTNEED
std::ignore= posix_fadvise(log, 0, 0, POSIX_FADV_DONTNEED);
# ifdef POSIX_FADV_NOREUSE
std::ignore= posix_fadvise(log, 0, 0, POSIX_FADV_NOREUSE);
# endif
return log;
}
@@ -448,8 +448,8 @@ private:
d= openat(target->fd, d_, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0666);
if (d < 0)
goto error_return;
# ifdef POSIX_FADV_DONTNEED
std::ignore= posix_fadvise(d, 0, 0, POSIX_FADV_DONTNEED);
# ifdef POSIX_FADV_NOREUSE
std::ignore= posix_fadvise(d, 0, 0, POSIX_FADV_NOREUSE);
# endif
#endif
const uint64_t end{log_sys.START_OFFSET + last_lsn - hl};
@@ -2154,8 +2154,8 @@ public:
}
else
{
# ifdef POSIX_FADV_DONTNEED
std::ignore= posix_fadvise(dst, 0, 0, POSIX_FADV_DONTNEED);
# ifdef POSIX_FADV_NOREUSE
std::ignore= posix_fadvise(dst, 0, 0, POSIX_FADV_NOREUSE);
# endif
err= extend(dst, chunk->offset) ||
backup::copy(src, dst, chunk[-1].offset, chunk[-1].offset +
@@ -2303,8 +2303,8 @@ int InnoDB_backup::backup(IF_WIN(const char *,int) target, fil_node_t *node,
f= openat(target, name, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0666);
if (f >= 0)
{
# ifdef POSIX_FADV_DONTNEED
std::ignore= posix_fadvise(f, 0, 0, POSIX_FADV_DONTNEED);
# ifdef POSIX_FADV_NOREUSE
std::ignore= posix_fadvise(f, 0, 0, POSIX_FADV_NOREUSE);
# endif
}
else