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Update tmpfile() existence detection

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Linux changed the tmpfile() signature again in torvalds/linux@6521f89,
which in turn broke our HAVE_TMPFILE detection in configure.

Update that macro to include the new case, and change the signature of
zpl_tmpfile as appropriate.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes: #12060
Closes: #12087
This commit is contained in:
Rich Ercolani
2021-05-20 19:02:36 -04:00
committed by Brian Behlendorf
parent 33a06f27e6
commit ab6717cba6
2 changed files with 29 additions and 4 deletions
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config/kernel-tmpfile.m4
+24 -4
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@@ -3,23 +3,43 @@ dnl # 3.11 API change
dnl # Add support for i_op->tmpfile
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_TMPFILE], [
ZFS_LINUX_TEST_SRC([inode_operations_tmpfile], [
dnl #
dnl # 5.11 API change
dnl # add support for userns parameter to tmpfile
dnl #
ZFS_LINUX_TEST_SRC([inode_operations_tmpfile_userns], [
#include <linux/fs.h>
int tmpfile(struct inode *inode, struct dentry *dentry,
int tmpfile(struct user_namespace *userns,
struct inode *inode, struct dentry *dentry,
umode_t mode) { return 0; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.tmpfile = tmpfile,
};
],[])
ZFS_LINUX_TEST_SRC([inode_operations_tmpfile], [
#include <linux/fs.h>
int tmpfile(struct inode *inode, struct dentry *dentry,
umode_t mode) { return 0; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.tmpfile = tmpfile,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_TMPFILE], [
AC_MSG_CHECKING([whether i_op->tmpfile() exists])
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile], [
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
AC_DEFINE(HAVE_TMPFILE_USERNS, 1, [i_op->tmpfile() has userns])
],[
AC_MSG_RESULT(no)
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
],[
AC_MSG_RESULT(no)
])
])
])