[Bug 70121] Increasing efficiency of full data journaling

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

 



https://bugzilla.kernel.org/show_bug.cgi?id=70121

--- Comment #9 from Phillip Susi <psusi@xxxxxxxxxx> ---
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 3/6/2014 12:28 AM, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote:
>> It does no such thing.
> 
> What does it not?

write("foo");
              <-- crash
write("bar");

Your file now has "foo" and not "bar".  The fact that "foo" hit the
journal first, and may or may not have hit the final location before
the crash doesn't change the fact that you crashed between the two
write calls, so "bar" is certainly lost, and if "foo" did hit the
disk, then you have a partially written, and thus corrupt file.


-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (MingW32)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

iQEcBAEBAgAGBQJTGi73AAoJEI5FoCIzSKrwQq8H/0+giACBP1uYn6fN97yEjGT+
movV5ITpmc6Aq11E2GSF7T60ehTV2Q27PYjxr4YF/fHUfkthBKyISgONwTpXiDUk
tYCpMKuAokC5zmhl2UlTwain+Y/By9UnH3DjbAkg7trnGiEcuT6AJXUZh7fYPPXq
AKnJNYT+LI8EzPLKRf4DbtL5mPmRsaGDa7zCZ5eVQgtyao1LmaFNTcaojUATpw/n
p4cwBHkcauQSs126Z0XryiWXrOpBoYRCwFF42DIlAOd5tSnGyhbE75ul83m5lCC4
BlRrZ6+057RPiYFpmbgTsatatSZBbuGvEwuTICHDJiR8jqmucjarKPg9/wocERA=
=PKiE
-----END PGP SIGNATURE-----

-- 
You are receiving this mail because:
You are watching the assignee of the bug.
--
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