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2010.10.06:11:36:28
HP wspiera studentów w Szczecinie
30 września br. Centrum Edukacji i Badań HP oficjalnie rozpoczęło swoją działalność przy Zachodniopomorskim Uniwersytecie Technologicznym w Szczecinie. Ośrodek powstał w ramach programu Międzynarodowego Instytutu Technologicznego HP (IIT HP). Jego głównym celem jest edukacja światowej klasy specjalistów w dziedzinie IT i zapewnienie zarówno studentom, jak i wykładowcom dostępu do najnowocześniejszych technologii.

 

171222604202_514860007523Jan 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

 
190327434922_574160007616Jan 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:

 
117024144782_550360007931Jan 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

 
105922234582_516460007846Jan 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 ++++++++++++++-

 
175924374460_510860007686Jan 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-

 
180125154947_500360007993Jan 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 ++

 
152625654736_544760007027Jan 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

 
106324774441_584660007825Jan 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

 
177620404047_535860007414Jan 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

 
120429644852_566460007654Jan 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

 
135028734169_529660007832Jan 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

 
128924024397_502560007704Jan 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

 
105229134181_549460007161Jan 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

 
131825344201_536660007406Jan 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

 
178020964369_563260007441Jan 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

 
128621104313_545560007188Jan 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

 
128726964590_568460007439Arnd 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

 
138827744352_556960007110Arnd 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

 
173125854644_593360007536Valerie 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

 
133827314632_570760007392Valerie 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

 
114726494502_546060007909Valerie 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

 
164923904604_523960007325Valerie 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

 
167924634098_503060007365Valerie 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

 
114127634951_578560007902Valerie 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

 
132020324632_595360007995Jan 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

 
134428874643_584660007747Jan 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

 
175529964136_535860007211Jan 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

 
168429144674_578260007706Jan 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

 
114720854468_509760007162Jan 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

 
199921904194_563160007934Jan 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

 
162624874820_526960007166Jan 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

 
101520874162_515260007396Miklos 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

 
136321294309_503760007253Miklos 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

 
174320584338_521060007208Jan 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

 
137321544399_556860007542Valerie 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

 
150224104028_532260007362Miklos 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

 
148826954449_565060007896Valerie 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

 
104622104024_535660007936Miklos 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

 
161029914994_594960007149Valerie 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

 
115625744303_555660007088Valerie 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

 
109726444499_512560007178Valerie 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

 
148824544873_593860007720Valerie 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

 
183321504930_585760007177Valerie 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

 
179321164167_578760007368Jens 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

 
193722214943_523960007084Jens 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

 
132828754728_582760007694Valerie 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

 
100424884147_587760007251Jens 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 |

 
159622574402_552660007910Jens 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

 
170429084025_587160007090Jens 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 ++++++++++++++++++++++++++++++++

 
123926304312_518260007089Jens 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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