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Viewing changes to include/trace/events/vfs.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-04kado7d1u2er2rl
Tags: 3.2.0-16.25
Add new lowlatency kernel flavour

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include/trace/events/vfs.h
 
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#undef TRACE_SYSTEM
 
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#define TRACE_SYSTEM vfs
 
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#if !defined(_TRACE_VFS_H) || defined(TRACE_HEADER_MULTI_READ)
 
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#define _TRACE_VFS_H
 
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/*
 
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 * Tracepoint for dirtying an inode:
 
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 */
 
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TRACE_EVENT(dirty_inode,
 
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        TP_PROTO(struct inode *inode, struct task_struct *task),
 
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        TP_ARGS(inode, task),
 
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        TP_STRUCT__entry(
 
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                __array( char,  comm,   TASK_COMM_LEN   )
 
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                __field( pid_t, pid                     )
 
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                __array( char,  dev,    16              )
 
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                __array( char,  file,   32              )
 
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        ),
 
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        TP_fast_assign(
 
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                if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) {
 
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                        struct dentry *dentry;
 
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                        const char *name = "?";
 
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                        dentry = d_find_alias(inode);
 
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                        if (dentry) {
 
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                                spin_lock(&dentry->d_lock);
 
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                                name = (const char *) dentry->d_name.name;
 
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                        }
 
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                        memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
 
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                        __entry->pid = task->pid;
 
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                        strlcpy(__entry->file, name, 32);
 
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                        strlcpy(__entry->dev, inode->i_sb->s_id, 16);
 
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                        if (dentry) {
 
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                                spin_unlock(&dentry->d_lock);
 
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                                dput(dentry);
 
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                        }
 
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                }
 
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        ),
 
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        TP_printk("task=%i (%s) file=%s dev=%s",
 
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                __entry->pid, __entry->comm, __entry->file, __entry->dev)
 
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);
 
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#endif /* _TRACE_VFS_H */
 
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/* This part must be outside protection */
 
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#include <trace/define_trace.h>