BDEV_DAX_SUPPORTED(9)                     The Linux VFS                     BDEV_DAX_SUPPORTED(9)



NAME
       bdev_dax_supported - Check if the device supports dax for filesystem

SYNOPSIS
       int bdev_dax_supported(struct super_block * sb, int blocksize);

ARGUMENTS
       sb
           The superblock of the device

       blocksize
           The block size of the device

DESCRIPTION
       This is a library function for filesystems to check if the block device can be mounted
       with dax option.

RETURN
       negative errno if unsupported, 0 if supported.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                     BDEV_DAX_SUPPORTED(9)