diff options
| -rw-r--r-- | fs/fs-writeback.c | 3 | ||||
| -rw-r--r-- | fs/inode.c | 4 | ||||
| -rw-r--r-- | include/trace/events/vfs.h | 55 |
3 files changed, 62 insertions, 0 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 539f36cf3e4..a4a1b59dc40 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -27,6 +27,7 @@ #include <linux/blkdev.h> #include <linux/backing-dev.h> #include <linux/tracepoint.h> +#include <trace/events/vfs.h> #include "internal.h" /* @@ -1082,6 +1083,8 @@ void __mark_inode_dirty(struct inode *inode, int flags) if ((inode->i_state & flags) == flags) return; + trace_dirty_inode(inode, current); + if (unlikely(block_dump)) block_dump___mark_inode_dirty(inode); diff --git a/fs/inode.c b/fs/inode.c index 9f4f5fecc09..c36761a58b8 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1741,3 +1741,7 @@ bool inode_owner_or_capable(const struct inode *inode) return false; } EXPORT_SYMBOL(inode_owner_or_capable); + +#define CREATE_TRACE_POINTS +#include <trace/events/vfs.h> + diff --git a/include/trace/events/vfs.h b/include/trace/events/vfs.h new file mode 100644 index 00000000000..26111290981 --- /dev/null +++ b/include/trace/events/vfs.h @@ -0,0 +1,55 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM vfs + +#include <linux/module.h> + +#if !defined(_TRACE_VFS_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_VFS_H + +/* + * Tracepoint for dirtying an inode: + */ +TRACE_EVENT(dirty_inode, + + TP_PROTO(struct inode *inode, struct task_struct *task), + + TP_ARGS(inode, task), + + TP_STRUCT__entry( + __array( char, comm, TASK_COMM_LEN ) + __field( pid_t, pid ) + __array( char, dev, 16 ) + __array( char, file, 32 ) + ), + + TP_fast_assign( + if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) { + struct dentry *dentry; + const char *name = "?"; + + dentry = d_find_alias(inode); + if (dentry) { + spin_lock(&dentry->d_lock); + name = (const char *) dentry->d_name.name; + } + + memcpy(__entry->comm, task->comm, TASK_COMM_LEN); + __entry->pid = task->pid; + strlcpy(__entry->file, name, 32); + strlcpy(__entry->dev, inode->i_sb->s_id, 16); + + if (dentry) { + spin_unlock(&dentry->d_lock); + dput(dentry); + } + } + ), + + TP_printk("task=%i (%s) file=%s dev=%s", + __entry->pid, __entry->comm, __entry->file, __entry->dev) +); + +#endif /* _TRACE_VFS_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |