Re: [PATCH 2/3] fs/locks: Remove fl_nspid

From: kbuild test robot
Date: Thu Jun 08 2017 - 02:50:52 EST


Hi Benjamin,

[auto build test WARNING on jlayton/linux-next]
[also build test WARNING on next-20170607]
[cannot apply to linus/master linux/master v4.12-rc4]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Benjamin-Coddington/fs-locks-Use-allocation-rather-than-the-stack-in-fcntl_getlk/20170608-015328
base: git://git.samba.org/jlayton/linux linux-next
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

fs/inode.c:1664: warning: No description found for parameter 'rcu'
>> fs/locks.c:2052: warning: No description found for parameter 'init_nr'
>> fs/locks.c:2052: warning: Excess function parameter 'nr' description in 'locks_translate_pid'
>> fs/locks.c:2052: warning: No description found for parameter 'init_nr'
>> fs/locks.c:2052: warning: Excess function parameter 'nr' description in 'locks_translate_pid'
include/linux/jbd2.h:442: warning: No description found for parameter 'i_transaction'
include/linux/jbd2.h:442: warning: No description found for parameter 'i_next_transaction'
include/linux/jbd2.h:442: warning: No description found for parameter 'i_list'
include/linux/jbd2.h:442: warning: No description found for parameter 'i_vfs_inode'
include/linux/jbd2.h:442: warning: No description found for parameter 'i_flags'
include/linux/jbd2.h:496: warning: No description found for parameter 'h_rsv_handle'
include/linux/jbd2.h:496: warning: No description found for parameter 'h_reserved'
include/linux/jbd2.h:496: warning: No description found for parameter 'h_type'
include/linux/jbd2.h:496: warning: No description found for parameter 'h_line_no'
include/linux/jbd2.h:496: warning: No description found for parameter 'h_start_jiffies'
include/linux/jbd2.h:496: warning: No description found for parameter 'h_requested_credits'
include/linux/jbd2.h:496: warning: No description found for parameter 'saved_alloc_context'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_chkpt_bhs'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_devname'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_average_commit_time'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_min_batch_time'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_max_batch_time'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_commit_callback'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_failed_commit'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_chksum_driver'
include/linux/jbd2.h:1049: warning: No description found for parameter 'j_csum_seed'
fs/jbd2/transaction.c:434: warning: No description found for parameter 'rsv_blocks'
fs/jbd2/transaction.c:434: warning: No description found for parameter 'gfp_mask'
fs/jbd2/transaction.c:434: warning: No description found for parameter 'type'
fs/jbd2/transaction.c:434: warning: No description found for parameter 'line_no'
fs/jbd2/transaction.c:511: warning: No description found for parameter 'type'
fs/jbd2/transaction.c:511: warning: No description found for parameter 'line_no'
fs/jbd2/transaction.c:641: warning: No description found for parameter 'gfp_mask'

vim +/init_nr +2052 fs/locks.c

2036 {
2037 if (filp->f_op->lock && is_remote_lock(filp))
2038 return filp->f_op->lock(filp, F_GETLK, fl);
2039 posix_test_lock(filp, fl);
2040 return 0;
2041 }
2042 EXPORT_SYMBOL_GPL(vfs_test_lock);
2043
2044 /**
2045 * locks_translate_pid - translate a pid number into a namespace
2046 * @nr: The pid number in the init_pid_ns
2047 * @ns: The namespace into which the pid should be translated
2048 *
2049 * Used to tranlate a fl_pid into a namespace virtual pid number
2050 */
2051 static pid_t locks_translate_pid(int init_nr, struct pid_namespace *ns)
> 2052 {
2053 pid_t vnr = 0;
2054 struct task_struct *task;
2055
2056 rcu_read_lock();
2057 task = find_task_by_pid_ns(init_nr, &init_pid_ns);
2058 if (task)
2059 get_task_struct(task);
2060 rcu_read_unlock();

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