Re: lazytime mount option—no support in Btrfs

2018-08-23 Thread Janos Toth F.
On Tue, Aug 21, 2018 at 4:10 PM Austin S. Hemmelgarn wrote: > Also, once you've got the space cache set up by mounting once writable > with the appropriate flag and then waiting for it to initialize, you > should not ever need to specify the `space_cache` option again. True. I am not sure why I

Re: lazytime mount option—no support in Btrfs

2018-08-22 Thread Duncan
Austin S. Hemmelgarn posted on Wed, 22 Aug 2018 07:30:09 -0400 as excerpted: >> Meanwhile, since broken rootflags requiring an initr* came up let me >> take the opportunity to ask once again, does btrfs-raid1 root still >> require an initr*? It'd be /so/ nice to be able to supply the >>

Re: lazytime mount option—no support in Btrfs

2018-08-22 Thread Austin S. Hemmelgarn
On 2018-08-22 11:01, David Sterba wrote: On Wed, Aug 22, 2018 at 09:56:59AM -0400, Austin S. Hemmelgarn wrote: On 2018-08-22 09:48, David Sterba wrote: On Tue, Aug 21, 2018 at 01:01:00PM -0400, Austin S. Hemmelgarn wrote: On 2018-08-21 12:05, David Sterba wrote: On Tue, Aug 21, 2018 at

Re: lazytime mount option—no support in Btrfs

2018-08-22 Thread David Sterba
On Wed, Aug 22, 2018 at 09:56:59AM -0400, Austin S. Hemmelgarn wrote: > On 2018-08-22 09:48, David Sterba wrote: > > On Tue, Aug 21, 2018 at 01:01:00PM -0400, Austin S. Hemmelgarn wrote: > >> On 2018-08-21 12:05, David Sterba wrote: > >>> On Tue, Aug 21, 2018 at 10:10:04AM -0400, Austin S.

Re: lazytime mount option—no support in Btrfs

2018-08-22 Thread Austin S. Hemmelgarn
On 2018-08-22 09:48, David Sterba wrote: On Tue, Aug 21, 2018 at 01:01:00PM -0400, Austin S. Hemmelgarn wrote: On 2018-08-21 12:05, David Sterba wrote: On Tue, Aug 21, 2018 at 10:10:04AM -0400, Austin S. Hemmelgarn wrote: On 2018-08-21 09:32, Janos Toth F. wrote: so pretty much everyone who

Re: lazytime mount option—no support in Btrfs

2018-08-22 Thread David Sterba
On Tue, Aug 21, 2018 at 01:01:00PM -0400, Austin S. Hemmelgarn wrote: > On 2018-08-21 12:05, David Sterba wrote: > > On Tue, Aug 21, 2018 at 10:10:04AM -0400, Austin S. Hemmelgarn wrote: > >> On 2018-08-21 09:32, Janos Toth F. wrote: > >> so pretty much everyone who wants to avoid the overhead

Re: lazytime mount option—no support in Btrfs

2018-08-22 Thread Austin S. Hemmelgarn
On 2018-08-21 23:57, Duncan wrote: Austin S. Hemmelgarn posted on Tue, 21 Aug 2018 13:01:00 -0400 as excerpted: Otherwise, the only option for people who want it set is to patch the kernel to get noatime as the default (instead of relatime). I would look at pushing such a patch upstream

Re: lazytime mount option—no support in Btrfs

2018-08-21 Thread Duncan
Austin S. Hemmelgarn posted on Tue, 21 Aug 2018 13:01:00 -0400 as excerpted: > Otherwise, the only option for people who want it set is to patch the > kernel to get noatime as the default (instead of relatime). I would > look at pushing such a patch upstream myself actually, if it weren't for >

Re: lazytime mount option—no support in Btrfs

2018-08-21 Thread Austin S. Hemmelgarn
On 2018-08-21 12:05, David Sterba wrote: On Tue, Aug 21, 2018 at 10:10:04AM -0400, Austin S. Hemmelgarn wrote: On 2018-08-21 09:32, Janos Toth F. wrote: so pretty much everyone who wants to avoid the overhead from them can just use the `noatime` mount option. It would be great if someone

Re: lazytime mount option—no support in Btrfs

2018-08-21 Thread David Sterba
On Tue, Aug 21, 2018 at 10:10:04AM -0400, Austin S. Hemmelgarn wrote: > On 2018-08-21 09:32, Janos Toth F. wrote: > so pretty much everyone who wants to avoid the overhead from them can > just > use the `noatime` mount option. > > > > It would be great if someone finally fixed

Re: lazytime mount option—no support in Btrfs

2018-08-21 Thread Austin S. Hemmelgarn
On 2018-08-21 09:32, Janos Toth F. wrote: so pretty much everyone who wants to avoid the overhead from them can just use the `noatime` mount option. It would be great if someone finally fixed this old bug then: https://bugzilla.kernel.org/show_bug.cgi?id=61601 Until then, it seems practically

Re: lazytime mount option—no support in Btrfs

2018-08-21 Thread Janos Toth F.
> >> so pretty much everyone who wants to avoid the overhead from them can just > >> use the `noatime` mount option. It would be great if someone finally fixed this old bug then: https://bugzilla.kernel.org/show_bug.cgi?id=61601 Until then, it seems practically impossible to use both noatime

Re: lazytime mount option—no support in Btrfs

2018-08-21 Thread Austin S. Hemmelgarn
On 2018-08-21 08:06, Adam Borowski wrote: On Mon, Aug 20, 2018 at 08:16:16AM -0400, Austin S. Hemmelgarn wrote: Also, slightly OT, but atimes are not where the real benefit is here for most people. No sane software other than mutt uses atimes (and mutt's use of them is not sane, but that's a

Re: lazytime mount option—no support in Btrfs

2018-08-21 Thread Adam Borowski
On Mon, Aug 20, 2018 at 08:16:16AM -0400, Austin S. Hemmelgarn wrote: > Also, slightly OT, but atimes are not where the real benefit is here for > most people. No sane software other than mutt uses atimes (and mutt's use > of them is not sane, but that's a different argument) Right. There are

Re: lazytime mount option—no support in Btrfs

2018-08-20 Thread Austin S. Hemmelgarn
On 2018-08-19 06:25, Andrei Borzenkov wrote: Отправлено с iPhone 19 авг. 2018 г., в 11:37, Martin Steigerwald написал(а): waxhead - 18.08.18, 22:45: Adam Hunt wrote: Back in 2014 Ted Tso introduced the lazytime mount option for ext4 and shortly thereafter a more generic VFS

Re: lazytime mount option—no support in Btrfs

2018-08-19 Thread Andrei Borzenkov
Отправлено с iPhone > 19 авг. 2018 г., в 11:37, Martin Steigerwald написал(а): > > waxhead - 18.08.18, 22:45: >> Adam Hunt wrote: >>> Back in 2014 Ted Tso introduced the lazytime mount option for ext4 >>> and shortly thereafter a more generic VFS implementation which was >>> then merged into

Re: lazytime mount option—no support in Btrfs

2018-08-19 Thread Martin Steigerwald
waxhead - 18.08.18, 22:45: > Adam Hunt wrote: > > Back in 2014 Ted Tso introduced the lazytime mount option for ext4 > > and shortly thereafter a more generic VFS implementation which was > > then merged into mainline. His early patches included support for > > Btrfs but those changes were removed

Re: lazytime mount option—no support in Btrfs

2018-08-18 Thread waxhead
Adam Hunt wrote: Back in 2014 Ted Tso introduced the lazytime mount option for ext4 and shortly thereafter a more generic VFS implementation which was then merged into mainline. His early patches included support for Btrfs but those changes were removed prior to the feature being merged. His

Re: lazytime mount option—no support in Btrfs

2017-08-14 Thread Austin S. Hemmelgarn
On 2017-08-13 07:50, Adam Hunt wrote: Back in 2014 Ted Tso introduced the lazytime mount option for ext4 and shortly thereafter a more generic VFS implementation which was then merged into mainline. His early patches included support for Btrfs but those changes were removed prior to the feature

lazytime mount option—no support in Btrfs

2017-08-13 Thread Adam Hunt
Back in 2014 Ted Tso introduced the lazytime mount option for ext4 and shortly thereafter a more generic VFS implementation which was then merged into mainline. His early patches included support for Btrfs but those changes were removed prior to the feature being merged. His changelog includes