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Latest revision as of 04:08, 17 May 2021
To Developers , I have read about the new member named as xfs_extdelta that is passed in different xfs internal routines i.e xfs_bmapi , In the 2.4 versions instead of using it is just passed as NULL can anyone provide info regarding that where to initialize and if I pass it NULl then is there any adverse effect of it
XFS_IOCORE_RT not been used in 2.6 version , so if instead of this flag I will pass XFS_IOCORE_EXCL it will be ok or will cause any crash or adverse effects or either there is any alternative present to sought out from these two problems
Regards Anshul Kundra HCL TECHNOLOGIES ERS
XFS File Inode number is changing using the utilities
I have seen a different behaviour in XFS
Suppose I have a file with inode number "131", I have noticed that the inode number of file got changed without deleting the file. When we change the data of the file everytime it changes the inode number. The complete description over the test is as follows
Steps are as follows:
1) I have created a file using "dd" of size 100MB:
- dd if=/dev/zero of=xfs.img bs=1M count=100
2) Created a loopback device over the image:
- losetup /dev/loop1 xfs.img
3) Created file system:
- mkfs.xfs /dev/loop1
- mount /dev/loop1 /mnt/xfs_mnt
5) Please check the mount output:
/dev/sdb2 on / type ext3 (rw,acl,user_xattr) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) debugfs on /sys/kernel/debug type debugfs (rw) devtmpfs on /dev type devtmpfs (rw,mode=0755) tmpfs on /dev/shm type tmpfs (rw,mode=1777) devpts on /dev/pts type devpts (rw,mode=0620,gid=5) fusectl on /sys/fs/fuse/connections type fusectl (rw) rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) /dev/loop0 on /mnt/mount_test type xfs (rw) /dev/loop1 on /mnt/xfs_mnt type xfs (rw)
6) Created a file using "touch"
- touch kundra.txt
7) Checking the file and its inode number:
- ls -li
total 0 131 -rw-r--r-- 1 root root 0 2012-10-20 01:41 kundra.txt
8) I have written some data using the vim editor, I can't provide snapshot of vim on the list:
- vim kundra.txt
9) Now I checked the inode number using the "ls -li"
- ls -li
total 4 133 -rw-r--r-- 1 root root 19 2012-10-20 01:43 kundra.txt
Please check that the inode number ( from "131" to "133" ) and total value (from "0" to "4" )in the filesystem got changed, I am assuming that the reasom may be due to filesystem of small size but it is showing unexpected behaviour.
Please provide some description over this issue, I am working on Linux SLES
- cat /etc/issue
Welcome to SUSE Linux Enterprise Server 11 SP1 (x86_64) - Kernel \r (\l).
- uname -a
Linux linux-sles 188.8.131.52-0.6-default #1 SMP Fri Aug 31 01:37:50 IST 2012 x86_64 x86_64 x86_64 GNU/Linux
Thanks & Best Regards Anshul Kundra