PATCH 08 11 writeback btrfs must register

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2010.10.06:11:36:28
Komputronik: rośnie rola usług na rynku salonów komputerowych
Polski rynek salonów komputerowych zmienia swój charakter z typowo sprzedażowego na usługowy. W ten sposób salony wchodzą w wysokomarżowy segment gospodarki, który zajmowany był do tej pory przez wyspecjalizowane firmy. Jednocześnie zyskują nowe atuty w konkurencji z dużymi marketami elektronicznymi.

 

163221904605_572560007499Jan Blunck
I think it is wrong to unconditionally take the lock before calling atomic_dec_and_test() in _atomic_dec_and_lock(). This will deadlock in situation where it is known that the counter will now reach

 
117724584781_503860007277Jan Blunck
Creates the proper struct union_mount when mounting something into a union. If the topmost filesystem isnt capable of handling the white-out filetype it could only be mount read-only. Signed-off-by:

 
119023134860_508860007326Jan Blunck
From: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx Add support for fallthru entries to tmpfs. Signed-off-by: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx --- fs/dcache.c | 4 ++- fs/libfs

 
142529714467_582960007447Jan Blunck
Honor the S_OPAQUE flag in the union path lookup. Signed-off-by: Jan Blunck <jblunck@xxxxxxx Signed-off-by: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx --- fs/namei.c | 17 ++++++++++++++-

 
159025864150_556160007433Jan Blunck
Add per mountpoint flag for Union Mount support. You need additional patches to util-linux for that to work - see: git://git.kernel.org/pub/scm/utils/util-linux-ng/val/util-linux-ng.git Signed-off-

 
125023254623_585560007097Jan Blunck
This patch changes real_lookup() into returning a struct path. Signed-off-by: Jan Blunck <jblunck@xxxxxxx Signed-off-by: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx --- fs/namei.c | 82 ++

 
135422274555_513460007849Jan Blunck
Simply white-out a given directory entry. This functionality is usually used in the sense of unlink. Therefore the given dentry can still be in-use and contains an in-use inode. The filesystems inode

 
141224574162_527160007478Jan Blunck
Add some additional checks when mounting something into an union. Signed-off-by: Jan Blunck <jblunck@xxxxxxx Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxx Signed-off-by: Valerie Aurora (He

 
159829714448_506460007392Jan Blunck
From: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx Define the fallthru dcache flag and file system op. Signed-off-by: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx --- include/linux/dcache.h

 
151223894979_566260007671Jan Blunck
From: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx Define the fallthru dcache flag and file system op. Signed-off-by: Valerie Aurora (Henson) <vaurora@xxxxxxxxxx --- include/linux/dcache.h

 
109421994997_571860007046Jan Blunck
This patch adds support for whiteouts to tmpfs. Signed-off-by: Jan Blunck <jblunck@xxxxxxx Signed-off-by: David Woodhouse <dwmw2@xxxxxxxxxxxxx Signed-off-by: Valerie Aurora (Henson) <vaur

 
181624084273_537060007539Jan Blunck
This patch adds support for whiteouts to tmpfs. Signed-off-by: Jan Blunck <jblunck@xxxxxxx Signed-off-by: David Woodhouse <dwmw2@xxxxxxxxxxxxx Signed-off-by: Valerie Aurora (Henson) <vaur

 
121929564996_538260007541Jan Blunck
The userspace isnt ready for handling another filetype. Therefore this patch lets readdir() and others skip over the whiteout directory entries they might find. Signed-off-by: Jan Blunck <j.blunc

 
186028244512_530860007311Jan Blunck
The userspace isnt ready for handling another filetype. Therefore this patch lets readdir() and others skip over the whiteout directory entries they might find. Signed-off-by: Jan Blunck <j.blunc

 
170024004700_567960007649Jan Blunck
Break early when somebody tries to rehash an already hashed dentry. Otherwise this leads to interesting corruptions in the dcache hash table later on. Signed-off-by: Jan Blunck <jblunck@xxxxxxx

 
134921564848_534560007903Jan Blunck
Break early when somebody tries to rehash an already hashed dentry. Otherwise this leads to interesting corruptions in the dcache hash table later on. Signed-off-by: Jan Blunck <jblunck@xxxxxxx

 
139226904310_566660007854Arnd Bergmann
Jan Blunck: +Rename across different levels of the union is implemented as a copy-up +operation for regular files. Rename of directories simply returns EXDEV, the +same as if we tried to renam

 
120522804809_520160007035Arnd Bergmann
Jan Blunck: +Rename across different levels of the union is implemented as a copy-up +operation for regular files. Rename of directories simply returns EXDEV, the +same as if we tried to renam

 
174325224860_525460007748Valerie Aurora
Arnd Bergmann: Right, but that is consistent with how the kernel would treat a rename from one mount point to another, and tools like mv can handle this in user space. Yes, that is the descri

 
156525304148_526560007210Valerie Aurora
Arnd Bergmann: Right, but that is consistent with how the kernel would treat a rename from one mount point to another, and tools like mv can handle this in user space. Yes, that is the descri

 
191425584366_576260007241Valerie Aurora
Valerie Aurora: Ah, we did implement that in an earlier version. I dont know if we dropped the patch by accident or on purpose, but the original version is below. We will either put this fea

 
166422954932_597560007992Valerie Aurora
Valerie Aurora: Ah, we did implement that in an earlier version. I dont know if we dropped the patch by accident or on purpose, but the original version is below. We will either put this fea

 
182821654272_563760007934Valerie Aurora
On May 18, 2009 16:40 -0400, Valerie Aurora wrote: @@ -705,8 +707,9 @@ struct ext2_dir_entry_2 { #define EXT2_FT_FIFO 5 #define EXT2_FT_SOCK 6 #define EXT2_FT_SYMLINK 7 +#define EXT2

 
167321084456_553360007285Valerie Aurora
On May 18, 2009 16:40 -0400, Valerie Aurora wrote: @@ -705,8 +707,9 @@ struct ext2_dir_entry_2 { #define EXT2_FT_FIFO 5 #define EXT2_FT_SOCK 6 #define EXT2_FT_SYMLINK 7 +#define EXT2

 
128129294816_542960007024Jan Blunck
On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Traditionally the mount operation is opaque, which means that the content of the moun

 
163921074582_500560007486Jan Blunck
On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Traditionally the mount operation is opaque, which means that the content of the moun

 
124725334781_517860007742Jan Blunck
On Tue, 19 May 2009, Jan Blunck wrote: The directory in the topmost filesystem is created during lookup. The contents of the directory isnt copied up presistently at that point in time. Therefo

 
117023354908_544260007273Jan Blunck
On Tue, 19 May 2009, Jan Blunck wrote: The directory in the topmost filesystem is created during lookup. The contents of the directory isnt copied up presistently at that point in time. Therefo

 
137526454382_583160007746Jan Blunck
On Tuesday 19 May 2009, Jan Blunck wrote: So this means that the topmost branch always needs to be writable, right?  It isnt possible to make a union of two iso9660 filesystems, for

 
111624594674_593360007867Jan Blunck
On Tuesday 19 May 2009, Jan Blunck wrote: So this means that the topmost branch always needs to be writable, right?  It isnt possible to make a union of two iso9660 filesystems, for

 
195725274974_553960007843Jan Blunck
On Tuesday 19 May 2009, Jan Blunck wrote: On Tue, May 19, Arnd Bergmann wrote: This would work, but youd have to do this for each file system if you want to be able to use it as the top of

 
102427804375_580560007883Miklos Szeredi
On Tue, May 19, 2009 at 11:48:00AM +0200, Miklos Szeredi wrote: On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Traditionally t

 
154721274217_545460007190Miklos Szeredi
On Wed, May 20, 2009 at 11:05:27AM +0200, Miklos Szeredi wrote: On Tue, 19 May 2009, Valerie Aurora wrote: As Jan said, readdir() of read-only unioned file systems works with a tmpfs top la

 
172729454835_510960007012Jan Blunck
On Tuesday 19 May 2009, Jan Blunck wrote: On Tue, May 19, Arnd Bergmann wrote: This would work, but youd have to do this for each file system if you want to be able to use it as the top of

 
185528934472_552860007359Valerie Aurora
On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Is there any chance this will support NFS? I can union-mount tmpfs over nfs mounted fs, bu

 
139527824887_536960007419Miklos Szeredi
On Tue, May 19, 2009 at 11:48:00AM +0200, Miklos Szeredi wrote: On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Traditionally t

 
121123454199_558660007156Valerie Aurora
On Mon, 08 Jun 2009, Valerie Aurora wrote: On Thu, May 21, 2009 at 02:54:19PM +0200, Jan Rekorajski wrote: On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS bas

 
146926964284_568660007854Miklos Szeredi
On Wed, May 20, 2009 at 11:05:27AM +0200, Miklos Szeredi wrote: On Tue, 19 May 2009, Valerie Aurora wrote: As Jan said, readdir() of read-only unioned file systems works with a tmpfs top la

 
187628774799_571160007575Valerie Aurora
On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Is there any chance this will support NFS? I can union-mount tmpfs over nfs mounted fs, bu

 
172428424468_519560007293Valerie Aurora
On Mon, 08 Jun 2009, Valerie Aurora wrote: On Tue, Jun 09, 2009 at 12:44:06AM +0200, Jan Rekorajski wrote: On Mon, 08 Jun 2009, Valerie Aurora wrote: Youll get -EBUSY on the second

 
155527654075_544260007396Valerie Aurora
On Mon, 08 Jun 2009, Valerie Aurora wrote: On Thu, May 21, 2009 at 02:54:19PM +0200, Jan Rekorajski wrote: On Mon, 18 May 2009, Jan Blunck wrote: Here is another post of the VFS bas

 
186123454741_506060007891Valerie Aurora
On Mon, 2009-05-18 at 18:08 +0200, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Awesome work, this may just get us out of a tight spot with our LiveCD. A

 
121624004587_550160007737Valerie Aurora
On Mon, 08 Jun 2009, Valerie Aurora wrote: On Tue, Jun 09, 2009 at 12:44:06AM +0200, Jan Rekorajski wrote: On Mon, 08 Jun 2009, Valerie Aurora wrote: Youll get -EBUSY on the second

 
135529634613_515360007600Jens Axboe
Hi, This is the fourth version of this patchset. Chances since v3: - Dropped a prep patch, it has been included in mainline since. - Add a work-to-do list to the bdi. This is struct bdi_work. Each

 
172923974441_519660007811Jens Axboe
btrfs puts dirty inodes on there, so it must register a thread to handle them. Also fixes failure to check bdi_init() return value, and bad inherit of - capabilities flags from the default bdi. Sign

 
149021484576_556560007710Valerie Aurora
On Mon, 2009-05-18 at 18:08 +0200, Jan Blunck wrote: Here is another post of the VFS based union mount implementation. Awesome work, this may just get us out of a tight spot with our LiveCD. A

 
196224514054_570260007987Jens Axboe
Also a debugging aid. We want to catch dirty inodes being added to backing devices that dont do writeback. Signed-off-by: Jens Axboe <jens.axboe@xxxxxxxxxx --- fs/fs-writeback.c |

 
159227284386_517860007472Jens Axboe
Hi, This is the fourth version of this patchset. Chances since v3: - Dropped a prep patch, it has been included in mainline since. - Add a work-to-do list to the bdi. This is struct bdi_work. Each

 
191625834434_552860007107Jens Axboe
Not meant for inclusion, just to monitor what is going on while testing this stuff. Signed-off-by: Jens Axboe <jens.axboe@xxxxxxxxxx --- mm/backing-dev.c | 43 ++++++++++++++++++++++++++++++++

 
112824664505_556960007097Jens Axboe
btrfs puts dirty inodes on there, so it must register a thread to handle them. Also fixes failure to check bdi_init() return value, and bad inherit of - capabilities flags from the default bdi. Sign

 

 

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