This fixes the bug that drop_buffer_cache() doesn't work on systems where off_t isn't 64 bits.

This commit is contained in:
FUJITA Tomonori 2011-06-22 18:32:31 +00:00 committed by Tarmac
commit 5734c09ed2

View File

@ -144,12 +144,12 @@ def drop_buffer_cache(fd, offset, length):
"""
global _posix_fadvise
if _posix_fadvise is None:
_posix_fadvise = load_libc_function('posix_fadvise')
_posix_fadvise = load_libc_function('posix_fadvise64')
# 4 means "POSIX_FADV_DONTNEED"
ret = _posix_fadvise(fd, ctypes.c_uint64(offset),
ctypes.c_uint64(length), 4)
if ret != 0:
logging.warn("posix_fadvise(%s, %s, %s, 4) -> %s"
logging.warn("posix_fadvise64(%s, %s, %s, 4) -> %s"
% (fd, offset, length, ret))