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cf006e3496
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16479
57 lines
1.4 KiB
Plaintext
57 lines
1.4 KiB
Plaintext
dnl #
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dnl # Linux 3.16 API
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_RW_ITERATE], [
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ZFS_LINUX_TEST_SRC([file_operations_rw], [
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#include <linux/fs.h>
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static ssize_t test_read(struct kiocb *kiocb, struct iov_iter *to)
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{ return 0; }
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static ssize_t test_write(struct kiocb *kiocb, struct iov_iter *from)
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{ return 0; }
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static const struct file_operations
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fops __attribute__ ((unused)) = {
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.read_iter = test_read,
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.write_iter = test_write,
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};
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],[])
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ZFS_LINUX_TEST_SRC([new_sync_rw], [
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#include <linux/fs.h>
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],[
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ssize_t ret __attribute__ ((unused));
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struct file *filp = NULL;
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char __user *rbuf = NULL;
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const char __user *wbuf = NULL;
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size_t len = 0;
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loff_t ppos;
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ret = new_sync_read(filp, rbuf, len, &ppos);
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ret = new_sync_write(filp, wbuf, len, &ppos);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_VFS_RW_ITERATE], [
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AC_MSG_CHECKING([whether fops->read/write_iter() are available])
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ZFS_LINUX_TEST_RESULT([file_operations_rw], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_VFS_RW_ITERATE, 1,
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[fops->read/write_iter() are available])
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dnl #
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dnl # Linux 4.1 API
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dnl #
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AC_MSG_CHECKING([whether new_sync_read/write() are available])
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ZFS_LINUX_TEST_RESULT([new_sync_rw], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_NEW_SYNC_READ, 1,
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[new_sync_read()/new_sync_write() are available])
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],[
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AC_MSG_RESULT(no)
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])
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],[
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AC_MSG_RESULT(no)
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])
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])
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