On 6.06.22 г. 14:08 ч., David Sterba wrote:
Almost none of the errors stemming from a valid mount option but wrong value prints a descriptive message which would help to identify why mount failed. Like in the linked report: $ uname -r v4.19 $ mount -o compress=zstd /dev/sdb /mnt mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sdb, missing codepage or helper program, or other error. $ dmesg ... BTRFS error (device sdb): open_ctree failed Errors caused by memory allocation failures are left out as it's not a user error so reporting that would be confusing. Link: https://lore.kernel.org/linux-btrfs/9c3fec36-fc61-3a33-4977-a7e207c3fa4e@xxxxxx/ CC: stable@xxxxxxxxxxxxxxx # 4.9+ Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
