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Remove blk_rq_bytes()/blk_rq_sectors autotools checks

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Signed-off-by: Richard Yao <ryao@gentoo.org>
This commit is contained in:
Richard Yao 2014-07-06 21:06:43 -04:00
parent f952eaa7ec
commit 7d6e2adb4e
4 changed files with 0 additions and 87 deletions
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41
config/kernel-blk-rq-bytes.m4
View File

@ -1,41 +0,0 @@
dnl #
dnl # 2.6.29 API change
dnl # In the 2.6.29 kernel blk_rq_bytes() was available as a GPL-only symbol.
dnl # So we need to check the symbol license as well. As of 2.6.31 the
dnl blk_rq_bytes() helper was changed to a static inline which we can use.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_BYTES], [
AC_MSG_CHECKING([whether blk_rq_bytes() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
struct request *req = NULL;
(void) blk_rq_bytes(req);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_RQ_BYTES, 1,
[blk_rq_bytes() is available])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether blk_rq_bytes() is GPL-only])
ZFS_LINUX_TRY_COMPILE([
#include <linux/module.h>
#include <linux/blkdev.h>
MODULE_LICENSE("$ZFS_META_LICENSE");
],[
struct request *req = NULL;
(void) blk_rq_bytes(req);
],[
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_RQ_BYTES_GPL_ONLY, 1,
[blk_rq_bytes() is GPL-only])
])
EXTRA_KCFLAGS="$tmp_flags"
])

21
config/kernel-blk-rq-sectors.m4
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@ -1,21 +0,0 @@
dnl #
dnl # 2.6.31 API change
dnl #
AC_DEFUN([ZFS_AC_KERNEL_BLK_RQ_SECTORS], [
AC_MSG_CHECKING([whether blk_rq_sectors() is available])
tmp_flags="$EXTRA_KCFLAGS"
EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}"
ZFS_LINUX_TRY_COMPILE([
#include <linux/blkdev.h>
],[
struct request *req = NULL;
(void) blk_rq_sectors(req);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_BLK_RQ_SECTORS, 1,
[blk_rq_sectors() is available])
],[
AC_MSG_RESULT(no)
])
EXTRA_KCFLAGS="$tmp_flags"
])

2
config/kernel.m4
View File

@ -33,8 +33,6 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_BLK_QUEUE_MAX_SEGMENTS
ZFS_AC_KERNEL_BLK_QUEUE_NONROT
ZFS_AC_KERNEL_BLK_QUEUE_DISCARD
ZFS_AC_KERNEL_BLK_RQ_BYTES
ZFS_AC_KERNEL_BLK_RQ_SECTORS
ZFS_AC_KERNEL_GET_DISK_RO
ZFS_AC_KERNEL_GET_GENDISK
ZFS_AC_KERNEL_DISCARD_GRANULARITY

23
include/linux/blkdev_compat.h
View File

@ -52,29 +52,6 @@ __blk_queue_flush(struct request_queue *q, unsigned int flags)
q->flush_flags = flags & (REQ_FLUSH | REQ_FUA);
}
#endif /* HAVE_BLK_QUEUE_FLUSH && HAVE_BLK_QUEUE_FLUSH_GPL_ONLY */
#ifndef HAVE_BLK_RQ_SECTORS
static inline unsigned int
blk_rq_sectors(struct request *req)
{
return (req->nr_sectors);
}
#endif /* HAVE_BLK_RQ_SECTORS */
#if !defined(HAVE_BLK_RQ_BYTES) || defined(HAVE_BLK_RQ_BYTES_GPL_ONLY)
/*
* Define required to avoid conflicting 2.6.29 non-static prototype for a
* GPL-only version of the helper. As of 2.6.31 the helper is available
* to non-GPL modules in the form of a static inline in the header.
*/
#define blk_rq_bytes __blk_rq_bytes
static inline unsigned int
__blk_rq_bytes(struct request *req)
{
return (blk_rq_sectors(req) << 9);
}
#endif /* !HAVE_BLK_RQ_BYTES || HAVE_BLK_RQ_BYTES_GPL_ONLY */
/*
* Most of the blk_* macros were removed in 2.6.36. Ostensibly this was
* done to improve readability and allow easier grepping. However, from