#if !defined(LTTNG_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ)
#define LTTNG_TRACE_WRITEBACK_H
-#include "../../../probes/lttng-tracepoint-event.h"
+#include <probes/lttng-tracepoint-event.h>
#include <linux/tracepoint.h>
#include <linux/backing-dev.h>
#include <linux/writeback.h>
#ifndef _TRACE_WRITEBACK_DEF_
#define _TRACE_WRITEBACK_DEF_
+/*
+ * Vanilla kernels before 4.0 do not implement inode_to_bdi
+ * RHEL kernels before 3.10.0-327.10.1 do not implement inode_to_bdi
+ * RHEL kernel 3.10.0-327.10.1 has inode_to_bdi
+ * RHEL kernel 3.10.0-327.13.1 includes a partial merge of upstream
+ * commit a212b105b07d75b48b1a166378282e8a77fbf53d which inlines
+ * inode_to_bdi but not sb_is_blkdev_sb making it unusable by modules.
+ */
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0))
-static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
+static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
{
- struct super_block *sb = inode->i_sb;
+ struct super_block *sb;
+
+ if (!inode)
+ return &noop_backing_dev_info;
+
+ sb = inode->i_sb;
if (strcmp(sb->s_type->name, "bdev") == 0)
return inode->i_mapping->backing_dev_info;
return sb->s_bdi;
}
+#else
+static inline struct backing_dev_info *lttng_inode_to_bdi(struct inode *inode)
+{
+ return inode_to_bdi(inode);
+}
#endif /* #if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)) */
#endif
TP_ARGS(page, mapping),
TP_FIELDS(
ctf_array_text(char, name,
- mapping ? dev_name(inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
+ mapping ? dev_name(lttng_inode_to_bdi(mapping->host)->dev) : "(unknown)", 32)
ctf_integer(unsigned long, ino, mapping ? mapping->host->i_ino : 0)
ctf_integer(pgoff_t, index, page->index)
)
TP_FIELDS(
/* may be called for files on pseudo FSes w/ unregistered bdi */
ctf_array_text(char, name,
- inode_to_bdi(inode)->dev ?
- dev_name(inode_to_bdi(inode)->dev) : "(unknown)", 32)
+ lttng_inode_to_bdi(inode)->dev ?
+ dev_name(lttng_inode_to_bdi(inode)->dev) : "(unknown)", 32)
ctf_integer(unsigned long, ino, inode->i_ino)
ctf_integer(unsigned long, state, inode->i_state)
ctf_integer(unsigned long, flags, flags)
TP_ARGS(inode, wbc),
TP_FIELDS(
ctf_array_text(char, name,
- dev_name(inode_to_bdi(inode)->dev), 32)
+ dev_name(lttng_inode_to_bdi(inode)->dev), 32)
ctf_integer(unsigned long, ino, inode->i_ino)
ctf_integer(int, sync_mode, wbc->sync_mode)
)
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
+
+LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
+ TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work),
+ TP_ARGS(wb, work),
+ TP_FIELDS(
+ ctf_array_text(char, name, wb->bdi->dev ? dev_name(wb->bdi->dev) :
+ "(unknown)", 32)
+ )
+)
+
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0))
LTTNG_TRACEPOINT_EVENT_CLASS(writeback_work_class,
TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work),
#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)) */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
+
+#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
+LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
+ TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \
+ TP_ARGS(wb, work))
+
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
+
#define LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(name) \
LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_work_class, name, \
TP_PROTO(struct backing_dev_info *bdi, struct wb_writeback_work *work), \
TP_ARGS(bdi, work))
+
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
+
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_nothread)
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_queue)
LTTNG_TRACEPOINT_EVENT_WRITEBACK_WORK_INSTANCE(writeback_exec)
)
)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
+
LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
+ TP_PROTO(struct bdi_writeback *wb),
+ TP_ARGS(wb),
+ TP_FIELDS(
+ ctf_array_text(char, name,
+ dev_name(wb->bdi->dev), 32)
+ )
+)
+
+#undef DEFINE_WRITEBACK_EVENT
+#define DEFINE_WRITEBACK_EVENT(name) \
+LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
+ TP_PROTO(struct bdi_writeback *wb), \
+ TP_ARGS(wb))
+
+#define DEFINE_WRITEBACK_EVENT_MAP(name, map) \
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(writeback_class, name, map, \
+ TP_PROTO(struct bdi_writeback *wb), \
+ TP_ARGS(wb))
+
+LTTNG_TRACEPOINT_EVENT(writeback_bdi_register,
TP_PROTO(struct backing_dev_info *bdi),
TP_ARGS(bdi),
TP_FIELDS(
dev_name(bdi->dev), 32)
)
)
+
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
+
+LTTNG_TRACEPOINT_EVENT_CLASS(writeback_class,
+ TP_PROTO(struct backing_dev_info *bdi),
+ TP_ARGS(bdi),
+ TP_FIELDS(
+ ctf_array_text(char, name,
+ dev_name(bdi->dev), 32)
+ )
+)
+
#undef DEFINE_WRITEBACK_EVENT
#define DEFINE_WRITEBACK_EVENT(name) \
LTTNG_TRACEPOINT_EVENT_INSTANCE(writeback_class, name, \
TP_PROTO(struct backing_dev_info *bdi), \
TP_ARGS(bdi))
+DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
+
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
+
DEFINE_WRITEBACK_EVENT(writeback_nowork)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
DEFINE_WRITEBACK_EVENT(writeback_wake_background)
#endif
DEFINE_WRITEBACK_EVENT(writeback_wake_thread)
DEFINE_WRITEBACK_EVENT(writeback_wake_forker_thread)
-DEFINE_WRITEBACK_EVENT(writeback_bdi_register)
DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister)
DEFINE_WRITEBACK_EVENT(writeback_thread_start)
DEFINE_WRITEBACK_EVENT(writeback_thread_stop)
)
)
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
+LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
+
+ writeback_global_dirty_state,
+
+ TP_PROTO(unsigned long background_thresh,
+ unsigned long dirty_thresh
+ ),
+
+ TP_ARGS(background_thresh,
+ dirty_thresh
+ ),
+
+ TP_FIELDS(
+ ctf_integer(unsigned long, nr_dirty, global_node_page_state(NR_FILE_DIRTY))
+ ctf_integer(unsigned long, nr_writeback, global_node_page_state(NR_WRITEBACK))
+ ctf_integer(unsigned long, nr_unstable, global_node_page_state(NR_UNSTABLE_NFS))
+ ctf_integer(unsigned long, nr_dirtied, global_node_page_state(NR_DIRTIED))
+ ctf_integer(unsigned long, nr_written, global_node_page_state(NR_WRITTEN))
+ ctf_integer(unsigned long, background_thresh, background_thresh)
+ ctf_integer(unsigned long, dirty_thresh, dirty_thresh)
+ ctf_integer(unsigned long, dirty_limit, global_dirty_limit)
+ )
+)
+#else
LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state,
writeback_global_dirty_state,
)
)
#endif
+#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
#define KBps(x) ((x) << (PAGE_SHIFT - 10))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
+
+LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
+
+ writeback_bdi_dirty_ratelimit,
+
+ TP_PROTO(struct bdi_writeback *wb,
+ unsigned long dirty_rate,
+ unsigned long task_ratelimit),
+
+ TP_ARGS(wb, dirty_rate, task_ratelimit),
+
+ TP_FIELDS(
+ ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
+ ctf_integer(unsigned long, write_bw, KBps(wb->bdi->wb.write_bandwidth))
+ ctf_integer(unsigned long, avg_write_bw, KBps(wb->bdi->wb.avg_write_bandwidth))
+ ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
+ ctf_integer(unsigned long, dirty_ratelimit, KBps(wb->bdi->wb.dirty_ratelimit))
+ ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
+ ctf_integer(unsigned long, balanced_dirty_ratelimit,
+ KBps(wb->bdi->wb.balanced_dirty_ratelimit))
+ )
+)
+
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
+
+LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
+
+ writeback_bdi_dirty_ratelimit,
+
+ TP_PROTO(struct backing_dev_info *bdi,
+ unsigned long dirty_rate,
+ unsigned long task_ratelimit),
+
+ TP_ARGS(bdi, dirty_rate, task_ratelimit),
+
+ TP_FIELDS(
+ ctf_array_text(char, bdi, dev_name(bdi->dev), 32)
+ ctf_integer(unsigned long, write_bw, KBps(bdi->wb.write_bandwidth))
+ ctf_integer(unsigned long, avg_write_bw, KBps(bdi->wb.avg_write_bandwidth))
+ ctf_integer(unsigned long, dirty_rate, KBps(dirty_rate))
+ ctf_integer(unsigned long, dirty_ratelimit, KBps(bdi->wb.dirty_ratelimit))
+ ctf_integer(unsigned long, task_ratelimit, KBps(task_ratelimit))
+ ctf_integer(unsigned long, balanced_dirty_ratelimit,
+ KBps(bdi->wb.balanced_dirty_ratelimit))
+ )
+)
+
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
+
LTTNG_TRACEPOINT_EVENT_MAP(bdi_dirty_ratelimit,
writeback_bdi_dirty_ratelimit,
)
)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
+
+LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
+
+ writeback_balance_dirty_pages,
+
+ TP_PROTO(struct bdi_writeback *wb,
+ unsigned long thresh,
+ unsigned long bg_thresh,
+ unsigned long dirty,
+ unsigned long bdi_thresh,
+ unsigned long bdi_dirty,
+ unsigned long dirty_ratelimit,
+ unsigned long task_ratelimit,
+ unsigned long dirtied,
+ unsigned long period,
+ long pause,
+ unsigned long start_time),
+
+ TP_ARGS(wb, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
+ dirty_ratelimit, task_ratelimit,
+ dirtied, period, pause, start_time
+ ),
+
+ TP_FIELDS(
+ ctf_array_text(char, bdi, dev_name(wb->bdi->dev), 32)
+ ctf_integer(unsigned long, limit, global_dirty_limit)
+ ctf_integer(unsigned long, setpoint,
+ (global_dirty_limit + (thresh + bg_thresh) / 2) / 2)
+ ctf_integer(unsigned long, dirty, dirty)
+ ctf_integer(unsigned long, bdi_setpoint,
+ ((global_dirty_limit + (thresh + bg_thresh) / 2) / 2) *
+ bdi_thresh / (thresh + 1))
+ ctf_integer(unsigned long, bdi_dirty, bdi_dirty)
+ ctf_integer(unsigned long, dirty_ratelimit,
+ KBps(dirty_ratelimit))
+ ctf_integer(unsigned long, task_ratelimit,
+ KBps(task_ratelimit))
+ ctf_integer(unsigned int, dirtied, dirtied)
+ ctf_integer(unsigned int, dirtied_pause,
+ current->nr_dirtied_pause)
+ ctf_integer(unsigned long, paused,
+ (jiffies - start_time) * 1000 / HZ)
+ ctf_integer(long, pause, pause * 1000 / HZ)
+ ctf_integer(unsigned long, period,
+ period * 1000 / HZ)
+ ctf_integer(long, think,
+ current->dirty_paused_when == 0 ? 0 :
+ (long)(jiffies - current->dirty_paused_when) * 1000/HZ)
+ )
+)
+
+#else /* #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
+
LTTNG_TRACEPOINT_EVENT_MAP(balance_dirty_pages,
writeback_balance_dirty_pages,
#endif
)
)
-#endif
+#endif /* #else #if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
+
+#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,5,0))
LTTNG_TRACEPOINT_EVENT(writeback_sb_inodes_requeue,
TP_FIELDS(
ctf_array_text(char, name,
- dev_name(inode_to_bdi(inode)->dev), 32)
+ dev_name(lttng_inode_to_bdi(inode)->dev), 32)
ctf_integer(unsigned long, ino, inode->i_ino)
ctf_integer(unsigned long, state, inode->i_state)
ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
TP_FIELDS(
ctf_array_text(char, name,
- dev_name(inode_to_bdi(inode)->dev), 32)
+ dev_name(lttng_inode_to_bdi(inode)->dev), 32)
ctf_integer(unsigned long, ino, inode->i_ino)
ctf_integer(unsigned long, state, inode->i_state)
ctf_integer(unsigned long, dirtied_when, inode->dirtied_when)
#endif /* LTTNG_TRACE_WRITEBACK_H */
/* This part must be outside protection */
-#include "../../../probes/define_trace.h"
+#include <probes/define_trace.h>
projects / lttng-modules.git / blobdiff