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a5e046eaac
[bio] The req_op enum was changed to req_opf. Update the "Linux 4.8 API"
autotools checks to use an int to determine whether the various REQ_OP
values are defined. This should work properly on kernels >= 4.8.
[bio] bio_set_op_attrs() is now an inline function and can't be detected
with #ifdef. Add a configure check to determine whether bio_set_op_attrs()
is defined. Move the local definition of it from vdev_disk.c to
blkdev_compat.h for consistency with other related compability shims.
[bio] The read/write flags and their modifiers, including WRITE_FLUSH,
WRITE_FUA and WRITE_FLUSH_FUA have been removed from fs.h. Add the new
bio_set_flush() compatibility wrapper to replace VDEV_WRITE_FLUSH_FUA
and set the flags appropriately for each supported kernel version.
[vfs] The generic_readlink() function has been made static. If .readlink
in inode_operations is NULL, generic_readlink() is used.
[zol typo] Completely unrelated to 4.10 compat, fix a typo in the check
for REQ_OP_SECURE_ERASE so that the proper macro is defined:
s/HAVE_REQ_OP_SECURE_DISCARD/HAVE_REQ_OP_SECURE_ERASE/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Tim Chase <tim@chase2k.com>
Closes #5499
23 lines
509 B
Plaintext
23 lines
509 B
Plaintext
dnl #
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dnl # 4.10 API
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dnl #
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dnl # NULL inode_operations.readlink implies generic_readlink(), which
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dnl # has been made static.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL], [
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AC_MSG_CHECKING([whether generic_readlink is global])
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ZFS_LINUX_TRY_COMPILE([
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#include <linux/fs.h>
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],[
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int i __attribute__ ((unused));
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i = generic_readlink(NULL, NULL, 0);
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_GENERIC_READLINK, 1,
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[generic_readlink is global])
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],[
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AC_MSG_RESULT([no])
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])
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])
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