Re: hole punching in ext4

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

 



On 1/22/13 8:34 AM, Bradley C. Kuszmaul wrote:
> Hi,
> 
> Do any of the ext file systems support hole punching?  

ext4 does:

[esandeen@host linux-2.6]$ grep -l FALLOC_FL_PUNCH_HOLE fs/ext?/*.[ch]
fs/ext4/extents.c

> If so, do the redhat distributions support it?

Normally a question for Red Hat support, but yes, recent RHEL6
supports punch in ext4.

> Can someone provide an example of a
> program that punches a hole in a file in an ext4 file system?

Upstream fallocate command does with the -p option, for example.

-Eric

> -Bradley
> --
> To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux