diff options
| author | Tim Chase <[email protected]> | 2016-12-30 16:03:59 -0600 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2016-12-30 16:03:59 -0600 |
| commit | a5e046eaacad20487188c9eef231554e1401d8c9 (patch) | |
| tree | 41395397905b3e0fa0e908193412c3fd9b273446 /config/kernel-generic_readlink.m4 | |
| parent | 3500a145952e0dfb7b7efe1c6b7856319815628c (diff) | |
4.10 compat - BIO flag changes and others
[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 <[email protected]>
Reviewed-by: Chunwei Chen <[email protected]>
Signed-off-by: Tim Chase <[email protected]>
Closes #5499
Diffstat (limited to 'config/kernel-generic_readlink.m4')
| -rw-r--r-- | config/kernel-generic_readlink.m4 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/config/kernel-generic_readlink.m4 b/config/kernel-generic_readlink.m4 new file mode 100644 index 000000000..914431de4 --- /dev/null +++ b/config/kernel-generic_readlink.m4 @@ -0,0 +1,22 @@ +dnl # +dnl # 4.10 API +dnl # +dnl # NULL inode_operations.readlink implies generic_readlink(), which +dnl # has been made static. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_GENERIC_READLINK_GLOBAL], [ + AC_MSG_CHECKING([whether generic_readlink is global]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/fs.h> + ],[ + int i __attribute__ ((unused)); + + i = generic_readlink(NULL, NULL, 0); + ],[ + AC_MSG_RESULT([yes]) + AC_DEFINE(HAVE_GENERIC_READLINK, 1, + [generic_readlink is global]) + ],[ + AC_MSG_RESULT([no]) + ]) +]) |