Metadata Copy
Hello, I am new in kernel programming. Help me in following. I am trying to write module in ext4 filesystem that takes a inode of one file and copy it's metadata into one new inode. Problem is to how to request new inode and what are the fields of metadata we can copy. Also problem with the time created ,modified fields in metadata . -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
System call trace
Can we see trace of how the system call works? What are the functions are called in kernel space? For example we want to trace cp command. Then what are the functions is get called by that in kernel space? like how the inode allocation take place for new destination file etc. Is any tool for that? -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Writing module in kernel 3.1.6
Hi, I am new to kernel programming, I have written one module to get vfs inode using path_lookup function in kernel 2.6.35. Now I am trying to compile same module under kernel 3.1.6 then i got some errors like ioctl undefined, path_lookup not present i.e error: implicit declaration of function ‘path_lookup’ . I have searched and used unlocked_ioctl insted of ioctl. But I am struggling to find function equivalent to path_lookup as in new kernel this function dose not exist. Can anyone suggest me proper function which dose the same job as path_lookup in 3.1.6? -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Data Recovery
Hi, I have a Hp laptop with i5 Processor, 640 GB HD. My HD is Crashed due to damage. It does not have any partition table in it. Then how I can recover my data from it. Is anybody have some tool that to it? (Note : Recover My File software showed some files in it, But it requires license key. ) -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Snapshot in ext4
Is it is possible to point to other partition's datablocks? -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Snapshot in ext4
If we store snapshot on other partition and assign new inode to each file's snapshot. Then datablocks of that partition where we store snapshot is wasted ? If not how? -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Snapshot in ext4
Is it is helpful to make some new datastructure that store the metadata of file in snapshot? -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Internal Data structure of ext4
Give me details with source code of ext4 filesystem and explain with various features in details like multiblock allocation, journeling etc. -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Regarding Copy on Write in ext4
How Copy on Write ( COW )is implemented in ext4? Help me in understanding design issues in it. Is anybody have source code of it with proper documentation. -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Snapshot in ext4
1. Where to place snapshot files in filesystem level snapshot? 2. Is there any issues regarding it? 3. It is helpful to allocate new inode for a file od which snapshot is taken? -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
help regarding ext4 extend and multiblock allocation
How the extend is different from block allocation? How it is implemented in ext4? How helpful the multiblock allocation in ext4? Is there is some special cases than ext3 that handled in ext4 for above. -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Metadata snapshot issues
If we gives new inodes to each file during metadata snapshot. Then is there any conflicting issue happens? What are the techniques help us in this? Is some-one have source code of it? -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Snapshot implementation on ext4 filesystem and fedora or redhat OS
What are the different design issues, documents,commands,system calls in kernel and user space? Is anyone have these details with running source code? ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Taking snapshot in ext4 filesystem
Hey, Anybody help me for theproject on taking snapshot of ext4 filesystem and related stuff... -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
[no subject]
Hi , Tell me procedure or system call for- How to copy metadata of all files in a ext4 filesystem. -- Regards, Swapnil Gaikwad. ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
