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On 11/30/2014 05:58 PM, Qu Wenruo wrote:
> 2. Heavy dependency If use it, btrfs-progs will include RDBMS as
> the make and runtime dependency. Such low level progs depend on
> high level programs like sqlite3 may be very strange.
BTW SQLite is designe
Hi Qu,
Am Dienstag, 2. Dezember 2014, 08:37:44 schrieb Qu Wenruo:
> Original Message
> Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
> From: Austin S Hemmelgarn
> To: Qu Wenruo , linux-btrfs
>
> Date: 2014年12月01日 20:53
>
&g
On Thu, Dec 11, 2014 at 10:05:20AM +0800, Qu Wenruo wrote:
>
> Original Message
> Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
> From: Zygo Blaxell
> To: Qu Wenruo
> Date: 2014年12月11日 05:57
> >On Thu, Dec 04, 2014 at 02:
Original Message
Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
From: Zygo Blaxell
To: Qu Wenruo
Date: 2014年12月11日 05:57
On Thu, Dec 04, 2014 at 02:56:55PM +0800, Qu Wenruo wrote:
The main memory usage in btrfsck is extent record, which
we
On Thu, Dec 04, 2014 at 02:56:55PM +0800, Qu Wenruo wrote:
> The main memory usage in btrfsck is extent record, which
> we can't free them until we read them all in and checked, so even we
> mmap/unmap, it can only help with
> the extent_buffer(which is already freed if not used according to refs).
Original Message
Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
From: Robert White
To: Qu Wenruo , linux-btrfs
Date: 2014年12月04日 03:18
On 12/01/2014 05:17 PM, Qu Wenruo wrote:
But I am also somewhat tired of bringing new structure new
On 12/01/2014 05:17 PM, Qu Wenruo wrote:
But I am also somewhat tired of bringing new structure new searching
functions or even bring larger change on
the btrfsck record infrastructure when I found that can't provide the
function when new recovery function is going
to be implemented.
DISCLAIMER
Original Message
Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
From: Robert White
To: Qu Wenruo , linux-btrfs
Date: 2014年12月02日 02:10
On 11/30/2014 10:18 PM, Qu Wenruo wrote:
(advocacy for using SQL internally for btrfsck)
All of these
Original Message
Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
From: Austin S Hemmelgarn
To: Qu Wenruo , linux-btrfs
Date: 2014年12月01日 20:53
On 2014-11-30 20:58, Qu Wenruo wrote:
[snipped]
So, I think this does a good job of highlighting
On 11/30/2014 10:18 PM, Qu Wenruo wrote:
(advocacy for using SQL internally for btrfsck)
All of these ideas you want to toss a entire SQL front end on are more
simply handled with simple data structures.
In C++ terms "map" and/or "map>"
beats the heck out of including all of SQL and its rel
On 2014-11-30 20:58, Qu Wenruo wrote:
[BACKGROUND]
I'm trying to implement the function to repair missing inode item.
Under that case, inode type must be salvaged(although it can be fallback to
FILE).
One case should be, if there is any dir_item/index or inode_ref refers the
inode as parent, the
Original Message
Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
From: Duncan <1i5t5.dun...@cox.net>
To:
Date: 2014年12月01日 13:47
Qu Wenruo posted on Mon, 01 Dec 2014 11:24:50 +0800 as excerpted:
The db file is mostly used in memory, onl
Original Message
Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
From: Robert White
To: Qu Wenruo , linux-btrfs
Date: 2014年12月01日 12:03
On 11/30/2014 05:58 PM, Qu Wenruo wrote:
("why not use SQL to..." suggestion)
SQL, as in Struct
Qu Wenruo posted on Mon, 01 Dec 2014 11:24:50 +0800 as excerpted:
> The db file is mostly used in memory, only when the metadata is really
> really big, maybe when the fs tree's level is 7 or 8 we may need to use
> db file.
So fscking the database in ordered to fsck the database isn't an issue.
On 11/30/2014 05:58 PM, Qu Wenruo wrote:
("why not use SQL to..." suggestion)
SQL, as in Structured Query Language, is _terrible_ for recursion. It
expresses all of its elements in terms of set theory and really can only
implement union and intersection of flat sets.
Several companies offer
Original Message
Subject: Re: Crazy idea of cleanup the inode_record btrfsck things with SQL?
From: Duncan <1i5t5.dun...@cox.net>
To:
Date: 2014年12月01日 11:08
Qu Wenruo posted on Mon, 01 Dec 2014 09:58:27 +0800 as excerpted:
[CRAZY IDEA]
So why not using SQL to impleme
Qu Wenruo posted on Mon, 01 Dec 2014 09:58:27 +0800 as excerpted:
> [CRAZY IDEA]
> So why not using SQL to implement the btrfsck inode-record things?
> 2. Heavy dependency
> If use it, btrfs-progs will include RDBMS as the make and runtime
> dependency. Such low level progs depend on hig
[BACKGROUND]
I'm trying to implement the function to repair missing inode item.
Under that case, inode type must be salvaged(although it can be fallback to
FILE).
One case should be, if there is any dir_item/index or inode_ref refers the
inode as parent, the type of that inode must be DIR.
Howev
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