Hi,
I previously had a problem that the same device has 2 device Id on btrfs.
In order to solve it, i had to use
BTRFS_I(inode)->root->anon_super.s_dev instead
of inode->i_sb->s_dev
My question is, if there is something like that for inodes, All directories
on my top level device has the same
Hi,
sorry if this is a newbie question. I am newbie.
In my kernel driver, I get device id by converting struct inode struct
to btrfs_inode, I use the code:
struct btrfs_inode *btrfsInode;
btrfsInode = BTRFS_I(inode);
I usually download kernel-headers rpm package, this is not enough. it
fails to
I need to cast struct inode to struct btrfs_inode.
in order to do it, i looked at implementation of btrfs_getattr.
the code is simple:
struct btrfs_inode *btrfsInode;
btrfsInode = BTRFS_I(inode);
in order to compile i must add the headers on top of the function:
#include
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..
When printing from kernel BTRFS_I(inode)->root->anon_dev - I receive
the number 2. and not 31h/49d.
On Mon, Jan 15, 2018 at 2:13 PM, Qu Wenruo <quwenruo.bt...@gmx.com> wrote:
>
>
> On 2018年01月15日 20:08, Ilan Schwarts wrote:
>> Thanks for detailed information !
>
Hello btrfs developers/users,
I was wondering regarding to fetching the correct fsid on btrfs from
the context of a kernel module.
if on suse11.3 kernel 3.0.101-0.47.71-default in order to get fsid, I
do the following:
convert inode struct to btrfs_inode struct (use btrfsInode =
BTRFS_I(inode)),
?
I need to create unique identifier for a file, I need to understand if
the identifier would be: GlobalFSID_DeviceID_Inode or DeviceID_Inode
is enough.
Thanks
On Sun, Jan 14, 2018 at 11:13 AM, Qu Wenruo <quwenruo.bt...@gmx.com> wrote:
>
>
> On 2018年01月14日 16:33, Ilan Schwarts
both btrfs filesystems will have same fsid ?
On Sun, Jan 14, 2018 at 12:06 PM, Ilan Schwarts <ila...@gmail.com> wrote:
> But both filesystems will have same fsid?
>
> On Jan 14, 2018 12:04, "Nikolay Borisov" <nbori...@suse.com> wrote:
>>
>>
>
Hey,
If I get btrfs inode in this way: btrfs_ino(inode)
implemented at btrfs_inode.h:
static inline u64 btrfs_ino(struct inode *inode)
{
u64 ino = BTRFS_I(inode)->location.objectid;
if (!ino || BTRFS_I(inode)->location.type == BTRFS_ROOT_ITEM_KEY)
ino = inode->i_ino;
return ino;
}
Is that inode
If i stat a file from userspace:
File: ‘/home/builder/leon10’
Size: 0 Blocks: 0 IO Block: 4096 directory
Device: 31h/49d Inode: 550109 Links: 1
Inode is 550109 and device id is 49.
When I am in the kernel, I try to get that device id (49), I
Qu,
Given inode, i get the fsid via: inode->i_sb->s_dev;
this return dev_t and not u8/u16
On Sun, Jan 14, 2018 at 12:44 PM, Qu Wenruo <quwenruo.bt...@gmx.com> wrote:
>
>
> On 2018年01月14日 18:32, Ilan Schwarts wrote:
>> Thank you for clarification.
>> Just 2 quick
wrote:
>
>
> On 2018年01月14日 18:13, Ilan Schwarts wrote:
>> both btrfs filesystems will have same fsid ?
>>
>>
>> On Sun, Jan 14, 2018 at 12:06 PM, Ilan Schwarts <ila...@gmail.com> wrote:
>>> But both filesystems will have same fsid?
>>>
>>
t; Qu
>
>>
>>
>> On Sun, Jan 14, 2018 at 12:44 PM, Qu Wenruo <quwenruo.bt...@gmx.com> wrote:
>>>
>>>
>>> On 2018年01月14日 18:32, Ilan Schwarts wrote:
>>>> Thank you for clarification.
>>>> Just 2 quick questions,
>>>> 1.
> wrote:
>
>
> On 2018年01月14日 18:32, Ilan Schwarts wrote:
>> Thank you for clarification.
>> Just 2 quick questions,
>> 1. Sub volumes - 2 sub volumes cannot have 2 same inode numbers ?
>
> They can.
>
> So to really locate an inode in btrfs, you need:
&
ode->i_op->getattr(...) with the 2nd
dual dentry -> I get btrfs_getattr exception.
Is there a solution ?
This happens on Suse kernel 3.12.69-60 - hello david s :)
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Hi
While trying to compile my kernel module on suse 12.2 kernel
4.4.103-92.53-default
I recieve the following warning: error: redefinition of 'struct
btrfs_ioctl_defrag_range_args
I see that struct is defined in 2 places:
/lib/modules/4.4.103-92.53-default/source/fs/btrfs/ctree.h:1985:8
Thanks.
If you see no problems, then its probably locally on my machine.
On Thu, Apr 12, 2018 at 5:10 PM, David Sterba <dste...@suse.cz> wrote:
> On Wed, Apr 11, 2018 at 01:22:23PM +0300, Ilan Schwarts wrote:
>> Hi
>> While trying to compile my kernel module on suse 12.2 ke
Hi all,
I maintain kernel module on top of VFS.
When action executes, e.g vfs_rename, i get dentry object.
I need to get the fsid from the dentry object.
Since I maintain the same code for alot of suse distro and kernels
(11.4, 12.0, 12.1, 12.2), i have many #if macros,
My question is in SLES
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