ext4: fix flags validity checking for EXT4_IOC_CHECKPOINT
Use the correct bitmask when checking for any not-yet-supported flags. Link: https://lore.kernel.org/r/20210702173425.1276158-1-tytso@mit.edu Fixes: 351a0a3f ("ext4: add ioctl EXT4_IOC_CHECKPOINT") Signed-off-by: NTheodore Ts'o <tytso@mit.edu> Reviewed-by: NLeah Rumancik <leah.rumancik@gmail.com>
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