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895 lines
23 KiB
895 lines
23 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#undef TRACE_SYSTEM |
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#define TRACE_SYSTEM writeback |
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|
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#if !defined(_TRACE_WRITEBACK_H) || defined(TRACE_HEADER_MULTI_READ) |
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#define _TRACE_WRITEBACK_H |
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|
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#include <linux/tracepoint.h> |
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#include <linux/backing-dev.h> |
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#include <linux/writeback.h> |
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|
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#define show_inode_state(state) \ |
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__print_flags(state, "|", \ |
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{I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ |
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{I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ |
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{I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ |
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{I_NEW, "I_NEW"}, \ |
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{I_WILL_FREE, "I_WILL_FREE"}, \ |
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{I_FREEING, "I_FREEING"}, \ |
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{I_CLEAR, "I_CLEAR"}, \ |
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{I_SYNC, "I_SYNC"}, \ |
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{I_DIRTY_TIME, "I_DIRTY_TIME"}, \ |
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{I_REFERENCED, "I_REFERENCED"} \ |
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) |
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/* enums need to be exported to user space */ |
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#undef EM |
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#undef EMe |
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#define EM(a,b) TRACE_DEFINE_ENUM(a); |
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#define EMe(a,b) TRACE_DEFINE_ENUM(a); |
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|
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#define WB_WORK_REASON \ |
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EM( WB_REASON_BACKGROUND, "background") \ |
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EM( WB_REASON_VMSCAN, "vmscan") \ |
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EM( WB_REASON_SYNC, "sync") \ |
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EM( WB_REASON_PERIODIC, "periodic") \ |
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EM( WB_REASON_LAPTOP_TIMER, "laptop_timer") \ |
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EM( WB_REASON_FS_FREE_SPACE, "fs_free_space") \ |
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EMe(WB_REASON_FORKER_THREAD, "forker_thread") |
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|
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WB_WORK_REASON |
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/* |
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* Now redefine the EM() and EMe() macros to map the enums to the strings |
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* that will be printed in the output. |
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*/ |
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#undef EM |
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#undef EMe |
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#define EM(a,b) { a, b }, |
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#define EMe(a,b) { a, b } |
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struct wb_writeback_work; |
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|
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DECLARE_EVENT_CLASS(writeback_page_template, |
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TP_PROTO(struct page *page, struct address_space *mapping), |
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TP_ARGS(page, mapping), |
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TP_STRUCT__entry ( |
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__array(char, name, 32) |
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__field(ino_t, ino) |
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__field(pgoff_t, index) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, |
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bdi_dev_name(mapping ? inode_to_bdi(mapping->host) : |
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NULL), 32); |
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__entry->ino = mapping ? mapping->host->i_ino : 0; |
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__entry->index = page->index; |
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), |
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|
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TP_printk("bdi %s: ino=%lu index=%lu", |
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__entry->name, |
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(unsigned long)__entry->ino, |
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__entry->index |
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) |
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); |
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|
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DEFINE_EVENT(writeback_page_template, writeback_dirty_page, |
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TP_PROTO(struct page *page, struct address_space *mapping), |
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|
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TP_ARGS(page, mapping) |
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); |
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DEFINE_EVENT(writeback_page_template, wait_on_page_writeback, |
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TP_PROTO(struct page *page, struct address_space *mapping), |
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TP_ARGS(page, mapping) |
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); |
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DECLARE_EVENT_CLASS(writeback_dirty_inode_template, |
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TP_PROTO(struct inode *inode, int flags), |
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TP_ARGS(inode, flags), |
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TP_STRUCT__entry ( |
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__array(char, name, 32) |
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__field(ino_t, ino) |
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__field(unsigned long, state) |
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__field(unsigned long, flags) |
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), |
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TP_fast_assign( |
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struct backing_dev_info *bdi = inode_to_bdi(inode); |
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|
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/* may be called for files on pseudo FSes w/ unregistered bdi */ |
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strscpy_pad(__entry->name, bdi_dev_name(bdi), 32); |
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__entry->ino = inode->i_ino; |
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__entry->state = inode->i_state; |
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__entry->flags = flags; |
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), |
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|
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TP_printk("bdi %s: ino=%lu state=%s flags=%s", |
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__entry->name, |
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(unsigned long)__entry->ino, |
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show_inode_state(__entry->state), |
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show_inode_state(__entry->flags) |
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) |
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); |
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DEFINE_EVENT(writeback_dirty_inode_template, writeback_mark_inode_dirty, |
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TP_PROTO(struct inode *inode, int flags), |
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|
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TP_ARGS(inode, flags) |
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); |
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DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode_start, |
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TP_PROTO(struct inode *inode, int flags), |
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|
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TP_ARGS(inode, flags) |
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); |
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DEFINE_EVENT(writeback_dirty_inode_template, writeback_dirty_inode, |
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TP_PROTO(struct inode *inode, int flags), |
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|
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TP_ARGS(inode, flags) |
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); |
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#ifdef CREATE_TRACE_POINTS |
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#ifdef CONFIG_CGROUP_WRITEBACK |
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static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb) |
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{ |
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return cgroup_ino(wb->memcg_css->cgroup); |
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} |
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static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc) |
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{ |
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if (wbc->wb) |
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return __trace_wb_assign_cgroup(wbc->wb); |
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else |
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return 1; |
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} |
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#else /* CONFIG_CGROUP_WRITEBACK */ |
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static inline ino_t __trace_wb_assign_cgroup(struct bdi_writeback *wb) |
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{ |
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return 1; |
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} |
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|
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static inline ino_t __trace_wbc_assign_cgroup(struct writeback_control *wbc) |
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{ |
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return 1; |
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} |
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#endif /* CONFIG_CGROUP_WRITEBACK */ |
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#endif /* CREATE_TRACE_POINTS */ |
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#ifdef CONFIG_CGROUP_WRITEBACK |
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TRACE_EVENT(inode_foreign_history, |
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TP_PROTO(struct inode *inode, struct writeback_control *wbc, |
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unsigned int history), |
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TP_ARGS(inode, wbc, history), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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__field(ino_t, ino) |
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__field(ino_t, cgroup_ino) |
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__field(unsigned int, history) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, bdi_dev_name(inode_to_bdi(inode)), 32); |
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__entry->ino = inode->i_ino; |
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__entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc); |
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__entry->history = history; |
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), |
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TP_printk("bdi %s: ino=%lu cgroup_ino=%lu history=0x%x", |
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__entry->name, |
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(unsigned long)__entry->ino, |
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(unsigned long)__entry->cgroup_ino, |
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__entry->history |
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) |
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); |
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TRACE_EVENT(inode_switch_wbs, |
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TP_PROTO(struct inode *inode, struct bdi_writeback *old_wb, |
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struct bdi_writeback *new_wb), |
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TP_ARGS(inode, old_wb, new_wb), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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__field(ino_t, ino) |
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__field(ino_t, old_cgroup_ino) |
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__field(ino_t, new_cgroup_ino) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, bdi_dev_name(old_wb->bdi), 32); |
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__entry->ino = inode->i_ino; |
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__entry->old_cgroup_ino = __trace_wb_assign_cgroup(old_wb); |
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__entry->new_cgroup_ino = __trace_wb_assign_cgroup(new_wb); |
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), |
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TP_printk("bdi %s: ino=%lu old_cgroup_ino=%lu new_cgroup_ino=%lu", |
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__entry->name, |
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(unsigned long)__entry->ino, |
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(unsigned long)__entry->old_cgroup_ino, |
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(unsigned long)__entry->new_cgroup_ino |
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) |
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); |
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TRACE_EVENT(track_foreign_dirty, |
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TP_PROTO(struct page *page, struct bdi_writeback *wb), |
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TP_ARGS(page, wb), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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__field(u64, bdi_id) |
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__field(ino_t, ino) |
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__field(unsigned int, memcg_id) |
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__field(ino_t, cgroup_ino) |
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__field(ino_t, page_cgroup_ino) |
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), |
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TP_fast_assign( |
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struct address_space *mapping = page_mapping(page); |
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struct inode *inode = mapping ? mapping->host : NULL; |
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|
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strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32); |
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__entry->bdi_id = wb->bdi->id; |
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__entry->ino = inode ? inode->i_ino : 0; |
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__entry->memcg_id = wb->memcg_css->id; |
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__entry->cgroup_ino = __trace_wb_assign_cgroup(wb); |
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__entry->page_cgroup_ino = cgroup_ino(page_memcg(page)->css.cgroup); |
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), |
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TP_printk("bdi %s[%llu]: ino=%lu memcg_id=%u cgroup_ino=%lu page_cgroup_ino=%lu", |
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__entry->name, |
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__entry->bdi_id, |
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(unsigned long)__entry->ino, |
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__entry->memcg_id, |
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(unsigned long)__entry->cgroup_ino, |
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(unsigned long)__entry->page_cgroup_ino |
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) |
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); |
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TRACE_EVENT(flush_foreign, |
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TP_PROTO(struct bdi_writeback *wb, unsigned int frn_bdi_id, |
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unsigned int frn_memcg_id), |
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TP_ARGS(wb, frn_bdi_id, frn_memcg_id), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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__field(ino_t, cgroup_ino) |
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__field(unsigned int, frn_bdi_id) |
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__field(unsigned int, frn_memcg_id) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32); |
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__entry->cgroup_ino = __trace_wb_assign_cgroup(wb); |
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__entry->frn_bdi_id = frn_bdi_id; |
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__entry->frn_memcg_id = frn_memcg_id; |
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), |
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TP_printk("bdi %s: cgroup_ino=%lu frn_bdi_id=%u frn_memcg_id=%u", |
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__entry->name, |
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(unsigned long)__entry->cgroup_ino, |
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__entry->frn_bdi_id, |
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__entry->frn_memcg_id |
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) |
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); |
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#endif |
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DECLARE_EVENT_CLASS(writeback_write_inode_template, |
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|
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TP_PROTO(struct inode *inode, struct writeback_control *wbc), |
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TP_ARGS(inode, wbc), |
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|
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TP_STRUCT__entry ( |
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__array(char, name, 32) |
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__field(ino_t, ino) |
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__field(int, sync_mode) |
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__field(ino_t, cgroup_ino) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, |
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bdi_dev_name(inode_to_bdi(inode)), 32); |
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__entry->ino = inode->i_ino; |
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__entry->sync_mode = wbc->sync_mode; |
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__entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc); |
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), |
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TP_printk("bdi %s: ino=%lu sync_mode=%d cgroup_ino=%lu", |
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__entry->name, |
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(unsigned long)__entry->ino, |
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__entry->sync_mode, |
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(unsigned long)__entry->cgroup_ino |
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) |
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); |
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|
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DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode_start, |
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|
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TP_PROTO(struct inode *inode, struct writeback_control *wbc), |
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|
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TP_ARGS(inode, wbc) |
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); |
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|
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DEFINE_EVENT(writeback_write_inode_template, writeback_write_inode, |
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|
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TP_PROTO(struct inode *inode, struct writeback_control *wbc), |
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|
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TP_ARGS(inode, wbc) |
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); |
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|
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DECLARE_EVENT_CLASS(writeback_work_class, |
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TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), |
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TP_ARGS(wb, work), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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__field(long, nr_pages) |
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__field(dev_t, sb_dev) |
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__field(int, sync_mode) |
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__field(int, for_kupdate) |
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__field(int, range_cyclic) |
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__field(int, for_background) |
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__field(int, reason) |
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__field(ino_t, cgroup_ino) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32); |
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__entry->nr_pages = work->nr_pages; |
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__entry->sb_dev = work->sb ? work->sb->s_dev : 0; |
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__entry->sync_mode = work->sync_mode; |
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__entry->for_kupdate = work->for_kupdate; |
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__entry->range_cyclic = work->range_cyclic; |
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__entry->for_background = work->for_background; |
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__entry->reason = work->reason; |
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__entry->cgroup_ino = __trace_wb_assign_cgroup(wb); |
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), |
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TP_printk("bdi %s: sb_dev %d:%d nr_pages=%ld sync_mode=%d " |
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"kupdate=%d range_cyclic=%d background=%d reason=%s cgroup_ino=%lu", |
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__entry->name, |
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MAJOR(__entry->sb_dev), MINOR(__entry->sb_dev), |
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__entry->nr_pages, |
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__entry->sync_mode, |
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__entry->for_kupdate, |
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__entry->range_cyclic, |
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__entry->for_background, |
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__print_symbolic(__entry->reason, WB_WORK_REASON), |
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(unsigned long)__entry->cgroup_ino |
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) |
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); |
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#define DEFINE_WRITEBACK_WORK_EVENT(name) \ |
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DEFINE_EVENT(writeback_work_class, name, \ |
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TP_PROTO(struct bdi_writeback *wb, struct wb_writeback_work *work), \ |
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TP_ARGS(wb, work)) |
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DEFINE_WRITEBACK_WORK_EVENT(writeback_queue); |
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DEFINE_WRITEBACK_WORK_EVENT(writeback_exec); |
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DEFINE_WRITEBACK_WORK_EVENT(writeback_start); |
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DEFINE_WRITEBACK_WORK_EVENT(writeback_written); |
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DEFINE_WRITEBACK_WORK_EVENT(writeback_wait); |
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|
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TRACE_EVENT(writeback_pages_written, |
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TP_PROTO(long pages_written), |
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TP_ARGS(pages_written), |
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TP_STRUCT__entry( |
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__field(long, pages) |
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), |
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TP_fast_assign( |
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__entry->pages = pages_written; |
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), |
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TP_printk("%ld", __entry->pages) |
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); |
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|
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DECLARE_EVENT_CLASS(writeback_class, |
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TP_PROTO(struct bdi_writeback *wb), |
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TP_ARGS(wb), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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__field(ino_t, cgroup_ino) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32); |
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__entry->cgroup_ino = __trace_wb_assign_cgroup(wb); |
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), |
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TP_printk("bdi %s: cgroup_ino=%lu", |
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__entry->name, |
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(unsigned long)__entry->cgroup_ino |
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) |
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); |
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#define DEFINE_WRITEBACK_EVENT(name) \ |
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DEFINE_EVENT(writeback_class, name, \ |
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TP_PROTO(struct bdi_writeback *wb), \ |
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TP_ARGS(wb)) |
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|
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DEFINE_WRITEBACK_EVENT(writeback_wake_background); |
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|
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TRACE_EVENT(writeback_bdi_register, |
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TP_PROTO(struct backing_dev_info *bdi), |
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TP_ARGS(bdi), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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), |
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TP_fast_assign( |
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strscpy_pad(__entry->name, bdi_dev_name(bdi), 32); |
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), |
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TP_printk("bdi %s", |
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__entry->name |
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) |
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); |
|
|
|
DECLARE_EVENT_CLASS(wbc_class, |
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TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), |
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TP_ARGS(wbc, bdi), |
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TP_STRUCT__entry( |
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__array(char, name, 32) |
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__field(long, nr_to_write) |
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__field(long, pages_skipped) |
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__field(int, sync_mode) |
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__field(int, for_kupdate) |
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__field(int, for_background) |
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__field(int, for_reclaim) |
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__field(int, range_cyclic) |
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__field(long, range_start) |
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__field(long, range_end) |
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__field(ino_t, cgroup_ino) |
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), |
|
|
|
TP_fast_assign( |
|
strscpy_pad(__entry->name, bdi_dev_name(bdi), 32); |
|
__entry->nr_to_write = wbc->nr_to_write; |
|
__entry->pages_skipped = wbc->pages_skipped; |
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__entry->sync_mode = wbc->sync_mode; |
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__entry->for_kupdate = wbc->for_kupdate; |
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__entry->for_background = wbc->for_background; |
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__entry->for_reclaim = wbc->for_reclaim; |
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__entry->range_cyclic = wbc->range_cyclic; |
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__entry->range_start = (long)wbc->range_start; |
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__entry->range_end = (long)wbc->range_end; |
|
__entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc); |
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), |
|
|
|
TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " |
|
"bgrd=%d reclm=%d cyclic=%d " |
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"start=0x%lx end=0x%lx cgroup_ino=%lu", |
|
__entry->name, |
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__entry->nr_to_write, |
|
__entry->pages_skipped, |
|
__entry->sync_mode, |
|
__entry->for_kupdate, |
|
__entry->for_background, |
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__entry->for_reclaim, |
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__entry->range_cyclic, |
|
__entry->range_start, |
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__entry->range_end, |
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(unsigned long)__entry->cgroup_ino |
|
) |
|
) |
|
|
|
#define DEFINE_WBC_EVENT(name) \ |
|
DEFINE_EVENT(wbc_class, name, \ |
|
TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ |
|
TP_ARGS(wbc, bdi)) |
|
DEFINE_WBC_EVENT(wbc_writepage); |
|
|
|
TRACE_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_STRUCT__entry( |
|
__array(char, name, 32) |
|
__field(unsigned long, older) |
|
__field(long, age) |
|
__field(int, moved) |
|
__field(int, reason) |
|
__field(ino_t, cgroup_ino) |
|
), |
|
TP_fast_assign( |
|
strscpy_pad(__entry->name, bdi_dev_name(wb->bdi), 32); |
|
__entry->older = dirtied_before; |
|
__entry->age = (jiffies - dirtied_before) * 1000 / HZ; |
|
__entry->moved = moved; |
|
__entry->reason = work->reason; |
|
__entry->cgroup_ino = __trace_wb_assign_cgroup(wb); |
|
), |
|
TP_printk("bdi %s: older=%lu age=%ld enqueue=%d reason=%s cgroup_ino=%lu", |
|
__entry->name, |
|
__entry->older, /* dirtied_before in jiffies */ |
|
__entry->age, /* dirtied_before in relative milliseconds */ |
|
__entry->moved, |
|
__print_symbolic(__entry->reason, WB_WORK_REASON), |
|
(unsigned long)__entry->cgroup_ino |
|
) |
|
); |
|
|
|
TRACE_EVENT(global_dirty_state, |
|
|
|
TP_PROTO(unsigned long background_thresh, |
|
unsigned long dirty_thresh |
|
), |
|
|
|
TP_ARGS(background_thresh, |
|
dirty_thresh |
|
), |
|
|
|
TP_STRUCT__entry( |
|
__field(unsigned long, nr_dirty) |
|
__field(unsigned long, nr_writeback) |
|
__field(unsigned long, background_thresh) |
|
__field(unsigned long, dirty_thresh) |
|
__field(unsigned long, dirty_limit) |
|
__field(unsigned long, nr_dirtied) |
|
__field(unsigned long, nr_written) |
|
), |
|
|
|
TP_fast_assign( |
|
__entry->nr_dirty = global_node_page_state(NR_FILE_DIRTY); |
|
__entry->nr_writeback = global_node_page_state(NR_WRITEBACK); |
|
__entry->nr_dirtied = global_node_page_state(NR_DIRTIED); |
|
__entry->nr_written = global_node_page_state(NR_WRITTEN); |
|
__entry->background_thresh = background_thresh; |
|
__entry->dirty_thresh = dirty_thresh; |
|
__entry->dirty_limit = global_wb_domain.dirty_limit; |
|
), |
|
|
|
TP_printk("dirty=%lu writeback=%lu " |
|
"bg_thresh=%lu thresh=%lu limit=%lu " |
|
"dirtied=%lu written=%lu", |
|
__entry->nr_dirty, |
|
__entry->nr_writeback, |
|
__entry->background_thresh, |
|
__entry->dirty_thresh, |
|
__entry->dirty_limit, |
|
__entry->nr_dirtied, |
|
__entry->nr_written |
|
) |
|
); |
|
|
|
#define KBps(x) ((x) << (PAGE_SHIFT - 10)) |
|
|
|
TRACE_EVENT(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_STRUCT__entry( |
|
__array(char, bdi, 32) |
|
__field(unsigned long, write_bw) |
|
__field(unsigned long, avg_write_bw) |
|
__field(unsigned long, dirty_rate) |
|
__field(unsigned long, dirty_ratelimit) |
|
__field(unsigned long, task_ratelimit) |
|
__field(unsigned long, balanced_dirty_ratelimit) |
|
__field(ino_t, cgroup_ino) |
|
), |
|
|
|
TP_fast_assign( |
|
strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32); |
|
__entry->write_bw = KBps(wb->write_bandwidth); |
|
__entry->avg_write_bw = KBps(wb->avg_write_bandwidth); |
|
__entry->dirty_rate = KBps(dirty_rate); |
|
__entry->dirty_ratelimit = KBps(wb->dirty_ratelimit); |
|
__entry->task_ratelimit = KBps(task_ratelimit); |
|
__entry->balanced_dirty_ratelimit = |
|
KBps(wb->balanced_dirty_ratelimit); |
|
__entry->cgroup_ino = __trace_wb_assign_cgroup(wb); |
|
), |
|
|
|
TP_printk("bdi %s: " |
|
"write_bw=%lu awrite_bw=%lu dirty_rate=%lu " |
|
"dirty_ratelimit=%lu task_ratelimit=%lu " |
|
"balanced_dirty_ratelimit=%lu cgroup_ino=%lu", |
|
__entry->bdi, |
|
__entry->write_bw, /* write bandwidth */ |
|
__entry->avg_write_bw, /* avg write bandwidth */ |
|
__entry->dirty_rate, /* bdi dirty rate */ |
|
__entry->dirty_ratelimit, /* base ratelimit */ |
|
__entry->task_ratelimit, /* ratelimit with position control */ |
|
__entry->balanced_dirty_ratelimit, /* the balanced ratelimit */ |
|
(unsigned long)__entry->cgroup_ino |
|
) |
|
); |
|
|
|
TRACE_EVENT(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_STRUCT__entry( |
|
__array( char, bdi, 32) |
|
__field(unsigned long, limit) |
|
__field(unsigned long, setpoint) |
|
__field(unsigned long, dirty) |
|
__field(unsigned long, bdi_setpoint) |
|
__field(unsigned long, bdi_dirty) |
|
__field(unsigned long, dirty_ratelimit) |
|
__field(unsigned long, task_ratelimit) |
|
__field(unsigned int, dirtied) |
|
__field(unsigned int, dirtied_pause) |
|
__field(unsigned long, paused) |
|
__field( long, pause) |
|
__field(unsigned long, period) |
|
__field( long, think) |
|
__field(ino_t, cgroup_ino) |
|
), |
|
|
|
TP_fast_assign( |
|
unsigned long freerun = (thresh + bg_thresh) / 2; |
|
strscpy_pad(__entry->bdi, bdi_dev_name(wb->bdi), 32); |
|
|
|
__entry->limit = global_wb_domain.dirty_limit; |
|
__entry->setpoint = (global_wb_domain.dirty_limit + |
|
freerun) / 2; |
|
__entry->dirty = dirty; |
|
__entry->bdi_setpoint = __entry->setpoint * |
|
bdi_thresh / (thresh + 1); |
|
__entry->bdi_dirty = bdi_dirty; |
|
__entry->dirty_ratelimit = KBps(dirty_ratelimit); |
|
__entry->task_ratelimit = KBps(task_ratelimit); |
|
__entry->dirtied = dirtied; |
|
__entry->dirtied_pause = current->nr_dirtied_pause; |
|
__entry->think = current->dirty_paused_when == 0 ? 0 : |
|
(long)(jiffies - current->dirty_paused_when) * 1000/HZ; |
|
__entry->period = period * 1000 / HZ; |
|
__entry->pause = pause * 1000 / HZ; |
|
__entry->paused = (jiffies - start_time) * 1000 / HZ; |
|
__entry->cgroup_ino = __trace_wb_assign_cgroup(wb); |
|
), |
|
|
|
|
|
TP_printk("bdi %s: " |
|
"limit=%lu setpoint=%lu dirty=%lu " |
|
"bdi_setpoint=%lu bdi_dirty=%lu " |
|
"dirty_ratelimit=%lu task_ratelimit=%lu " |
|
"dirtied=%u dirtied_pause=%u " |
|
"paused=%lu pause=%ld period=%lu think=%ld cgroup_ino=%lu", |
|
__entry->bdi, |
|
__entry->limit, |
|
__entry->setpoint, |
|
__entry->dirty, |
|
__entry->bdi_setpoint, |
|
__entry->bdi_dirty, |
|
__entry->dirty_ratelimit, |
|
__entry->task_ratelimit, |
|
__entry->dirtied, |
|
__entry->dirtied_pause, |
|
__entry->paused, /* ms */ |
|
__entry->pause, /* ms */ |
|
__entry->period, /* ms */ |
|
__entry->think, /* ms */ |
|
(unsigned long)__entry->cgroup_ino |
|
) |
|
); |
|
|
|
TRACE_EVENT(writeback_sb_inodes_requeue, |
|
|
|
TP_PROTO(struct inode *inode), |
|
TP_ARGS(inode), |
|
|
|
TP_STRUCT__entry( |
|
__array(char, name, 32) |
|
__field(ino_t, ino) |
|
__field(unsigned long, state) |
|
__field(unsigned long, dirtied_when) |
|
__field(ino_t, cgroup_ino) |
|
), |
|
|
|
TP_fast_assign( |
|
strscpy_pad(__entry->name, |
|
bdi_dev_name(inode_to_bdi(inode)), 32); |
|
__entry->ino = inode->i_ino; |
|
__entry->state = inode->i_state; |
|
__entry->dirtied_when = inode->dirtied_when; |
|
__entry->cgroup_ino = __trace_wb_assign_cgroup(inode_to_wb(inode)); |
|
), |
|
|
|
TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu cgroup_ino=%lu", |
|
__entry->name, |
|
(unsigned long)__entry->ino, |
|
show_inode_state(__entry->state), |
|
__entry->dirtied_when, |
|
(jiffies - __entry->dirtied_when) / HZ, |
|
(unsigned long)__entry->cgroup_ino |
|
) |
|
); |
|
|
|
DECLARE_EVENT_CLASS(writeback_congest_waited_template, |
|
|
|
TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
|
|
|
TP_ARGS(usec_timeout, usec_delayed), |
|
|
|
TP_STRUCT__entry( |
|
__field( unsigned int, usec_timeout ) |
|
__field( unsigned int, usec_delayed ) |
|
), |
|
|
|
TP_fast_assign( |
|
__entry->usec_timeout = usec_timeout; |
|
__entry->usec_delayed = usec_delayed; |
|
), |
|
|
|
TP_printk("usec_timeout=%u usec_delayed=%u", |
|
__entry->usec_timeout, |
|
__entry->usec_delayed) |
|
); |
|
|
|
DEFINE_EVENT(writeback_congest_waited_template, writeback_congestion_wait, |
|
|
|
TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
|
|
|
TP_ARGS(usec_timeout, usec_delayed) |
|
); |
|
|
|
DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested, |
|
|
|
TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), |
|
|
|
TP_ARGS(usec_timeout, usec_delayed) |
|
); |
|
|
|
DECLARE_EVENT_CLASS(writeback_single_inode_template, |
|
|
|
TP_PROTO(struct inode *inode, |
|
struct writeback_control *wbc, |
|
unsigned long nr_to_write |
|
), |
|
|
|
TP_ARGS(inode, wbc, nr_to_write), |
|
|
|
TP_STRUCT__entry( |
|
__array(char, name, 32) |
|
__field(ino_t, ino) |
|
__field(unsigned long, state) |
|
__field(unsigned long, dirtied_when) |
|
__field(unsigned long, writeback_index) |
|
__field(long, nr_to_write) |
|
__field(unsigned long, wrote) |
|
__field(ino_t, cgroup_ino) |
|
), |
|
|
|
TP_fast_assign( |
|
strscpy_pad(__entry->name, |
|
bdi_dev_name(inode_to_bdi(inode)), 32); |
|
__entry->ino = inode->i_ino; |
|
__entry->state = inode->i_state; |
|
__entry->dirtied_when = inode->dirtied_when; |
|
__entry->writeback_index = inode->i_mapping->writeback_index; |
|
__entry->nr_to_write = nr_to_write; |
|
__entry->wrote = nr_to_write - wbc->nr_to_write; |
|
__entry->cgroup_ino = __trace_wbc_assign_cgroup(wbc); |
|
), |
|
|
|
TP_printk("bdi %s: ino=%lu state=%s dirtied_when=%lu age=%lu " |
|
"index=%lu to_write=%ld wrote=%lu cgroup_ino=%lu", |
|
__entry->name, |
|
(unsigned long)__entry->ino, |
|
show_inode_state(__entry->state), |
|
__entry->dirtied_when, |
|
(jiffies - __entry->dirtied_when) / HZ, |
|
__entry->writeback_index, |
|
__entry->nr_to_write, |
|
__entry->wrote, |
|
(unsigned long)__entry->cgroup_ino |
|
) |
|
); |
|
|
|
DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_start, |
|
TP_PROTO(struct inode *inode, |
|
struct writeback_control *wbc, |
|
unsigned long nr_to_write), |
|
TP_ARGS(inode, wbc, nr_to_write) |
|
); |
|
|
|
DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, |
|
TP_PROTO(struct inode *inode, |
|
struct writeback_control *wbc, |
|
unsigned long nr_to_write), |
|
TP_ARGS(inode, wbc, nr_to_write) |
|
); |
|
|
|
DECLARE_EVENT_CLASS(writeback_inode_template, |
|
TP_PROTO(struct inode *inode), |
|
|
|
TP_ARGS(inode), |
|
|
|
TP_STRUCT__entry( |
|
__field( dev_t, dev ) |
|
__field( ino_t, ino ) |
|
__field(unsigned long, state ) |
|
__field( __u16, mode ) |
|
__field(unsigned long, dirtied_when ) |
|
), |
|
|
|
TP_fast_assign( |
|
__entry->dev = inode->i_sb->s_dev; |
|
__entry->ino = inode->i_ino; |
|
__entry->state = inode->i_state; |
|
__entry->mode = inode->i_mode; |
|
__entry->dirtied_when = inode->dirtied_when; |
|
), |
|
|
|
TP_printk("dev %d,%d ino %lu dirtied %lu state %s mode 0%o", |
|
MAJOR(__entry->dev), MINOR(__entry->dev), |
|
(unsigned long)__entry->ino, __entry->dirtied_when, |
|
show_inode_state(__entry->state), __entry->mode) |
|
); |
|
|
|
DEFINE_EVENT(writeback_inode_template, writeback_lazytime, |
|
TP_PROTO(struct inode *inode), |
|
|
|
TP_ARGS(inode) |
|
); |
|
|
|
DEFINE_EVENT(writeback_inode_template, writeback_lazytime_iput, |
|
TP_PROTO(struct inode *inode), |
|
|
|
TP_ARGS(inode) |
|
); |
|
|
|
DEFINE_EVENT(writeback_inode_template, writeback_dirty_inode_enqueue, |
|
|
|
TP_PROTO(struct inode *inode), |
|
|
|
TP_ARGS(inode) |
|
); |
|
|
|
/* |
|
* Inode writeback list tracking. |
|
*/ |
|
|
|
DEFINE_EVENT(writeback_inode_template, sb_mark_inode_writeback, |
|
TP_PROTO(struct inode *inode), |
|
TP_ARGS(inode) |
|
); |
|
|
|
DEFINE_EVENT(writeback_inode_template, sb_clear_inode_writeback, |
|
TP_PROTO(struct inode *inode), |
|
TP_ARGS(inode) |
|
); |
|
|
|
#endif /* _TRACE_WRITEBACK_H */ |
|
|
|
/* This part must be outside protection */ |
|
#include <trace/define_trace.h>
|
|
|