[LU-18011] build failure on linux-6.8 due to ->flileattr_set() on PCC related code

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Qian Yingjin
• Reporter: Qian Yingjin

Description

The latest master branch with some PCC related patches merged will cause build issue for linux-6.8

make[3]: Entering directory '/home/ubuntu/linux-source-6.8.0'
  CC [M]  /home/ubuntu/lustre-release/lustre/llite/pcc.o
/home/ubuntu/lustre-release/lustre/llite/pcc.c: In function ‘__pcc_file_reset_projid’:
/home/ubuntu/lustre-release/lustre/llite/pcc.c:3265:40: error: passing argument 1 of ‘inode->i_op->fileattr_set’ from incompatible pointer type [-Werror=incompatible-pointer-types]
 3265 |         rc = inode->i_op->fileattr_set(&init_user_ns, dentry, &fa);
      |                                        ^~~~~~~~~~~~~
      |                                        |
      |                                        struct user_namespace *
/home/ubuntu/lustre-release/lustre/llite/pcc.c:3265:40: note: expected ‘struct mnt_idmap ’ but argument is of type ‘struct user_namespace ’