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.

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