X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=instrumentation%2Fevents%2Flttng-module%2Fwriteback.h;h=353d58a84bf11640fa52e2730bd48800ff51a7b3;hb=7318a1e88c8097733f5a05529069e4e03c142cae;hp=a215f55badf5a024315dc868a1a5bc51fef11bd4;hpb=c94ac1ac8ad4a732df9bc7adaa18114b3024d5aa;p=lttng-modules.git diff --git a/instrumentation/events/lttng-module/writeback.h b/instrumentation/events/lttng-module/writeback.h index a215f55b..353d58a8 100644 --- a/instrumentation/events/lttng-module/writeback.h +++ b/instrumentation/events/lttng-module/writeback.h @@ -13,17 +13,34 @@ #ifndef _TRACE_WRITEBACK_DEF_ #define _TRACE_WRITEBACK_DEF_ -#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0) && \ - LTTNG_RHEL_VERSION_CODE < LTTNG_RHEL_KERNEL_VERSION(3,10,0,327,10,1)) -static inline struct backing_dev_info *inode_to_bdi(struct inode *inode) +/* + * 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 *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 @@ -65,7 +82,7 @@ LTTNG_TRACEPOINT_EVENT(writeback_dirty_page, 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) ) @@ -77,8 +94,8 @@ LTTNG_TRACEPOINT_EVENT_CLASS(writeback_dirty_inode_template, 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) @@ -97,7 +114,7 @@ LTTNG_TRACEPOINT_EVENT_CLASS(writeback_write_inode_template, 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) ) @@ -354,35 +371,81 @@ LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_balance_dirty_wait, writeback_wbc_balanc #endif LTTNG_TRACEPOINT_EVENT_WBC_INSTANCE(wbc_writepage, writeback_wbc_writepage) -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,9,0) || \ + LTTNG_KERNEL_RANGE(5,8,6, 5,9,0) || \ + LTTNG_KERNEL_RANGE(5,4,62, 5,5,0) || \ + LTTNG_KERNEL_RANGE(4,19,143, 4,20,0) || \ + LTTNG_KERNEL_RANGE(4,14,196, 4,15,0) || \ + LTTNG_KERNEL_RANGE(4,9,235, 4,10,0) || \ + LTTNG_KERNEL_RANGE(4,4,235, 4,5,0) || \ + LTTNG_UBUNTU_KERNEL_RANGE(4,15,18,119, 4,16,0,0)) +LTTNG_TRACEPOINT_EVENT(writeback_queue_io, + TP_PROTO(struct bdi_writeback *wb, + struct wb_writeback_work *work, + unsigned long dirtied_before, + int moved), + TP_ARGS(wb, work, dirtied_before, moved), + TP_FIELDS( + ctf_array_text(char, name, dev_name(wb->bdi->dev), 32) + ctf_integer(unsigned long, older, dirtied_before) + ctf_integer(int, moved, moved) + ) +) +#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) LTTNG_TRACEPOINT_EVENT(writeback_queue_io, TP_PROTO(struct bdi_writeback *wb, -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) struct wb_writeback_work *work, -#else - unsigned long *older_than_this, -#endif int moved), -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) TP_ARGS(wb, work, moved), -#else + TP_FIELDS( + ctf_array_text(char, name, dev_name(wb->bdi->dev), 32) + ctf_integer(int, moved, moved) + ) +) +#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) +LTTNG_TRACEPOINT_EVENT(writeback_queue_io, + TP_PROTO(struct bdi_writeback *wb, + unsigned long *older_than_this, + int moved), TP_ARGS(wb, older_than_this, moved), -#endif TP_FIELDS( ctf_array_text(char, name, dev_name(wb->bdi->dev), 32) -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) -#else ctf_integer(unsigned long, older, older_than_this ? *older_than_this : 0) ctf_integer(long, age, older_than_this ? (jiffies - *older_than_this) * 1000 / HZ : -1) -#endif ctf_integer(int, moved, moved) ) ) +#endif + +#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) + ) +) +#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)) LTTNG_TRACEPOINT_EVENT_MAP(global_dirty_state, writeback_global_dirty_state, @@ -609,7 +672,7 @@ 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) @@ -657,7 +720,7 @@ LTTNG_TRACEPOINT_EVENT_CLASS(writeback_single_inode_template, 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)