Re: [PATCH v2 00/16] block atomic writes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 19/12/2023 15:17, Christoph Hellwig wrote:
On Tue, Dec 19, 2023 at 12:41:37PM +0000, John Garry wrote:
How about something based on fcntl, like below? We will prob also require
some per-FS flag for enabling atomic writes without HW support. That flag
might be also useful for XFS for differentiating forcealign for atomic
writes with just forcealign.
I would have just exposed it through a user visible flag instead of
adding yet another ioctl/fcntl opcode and yet another method.


Any specific type of flag?

I would suggest a file attribute which we can set via chattr, but that is still using an ioctl and would require a new inode flag; but at least there is standard userspace support.

And yes, for anything that doesn't always support atomic writes it would
need to be persisted.






[Index of Archives]     [Linux RAID]     [Linux SCSI]     [Linux ATA RAID]     [IDE]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Device Mapper]

  Powered by Linux