| Message ID | 20240711-mgtime-v5-2-37bb5b465feb@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | fs: multigrain timestamp redux | expand |
On Thu, Jul 11, 2024 at 07:08:06AM -0400, Jeff Layton wrote: > Add some tracepoints around various multigrain timestamp events. > > Signed-off-by: Jeff Layton <jlayton@kernel.org> > --- > fs/inode.c | 5 ++ > fs/stat.c | 3 ++ > include/trace/events/timestamp.h | 109 +++++++++++++++++++++++++++++++++++++++ > 3 files changed, 117 insertions(+) > > diff --git a/fs/inode.c b/fs/inode.c > index 2b5889ff7b36..81b45e0a95a6 100644 > --- a/fs/inode.c > +++ b/fs/inode.c > @@ -22,6 +22,9 @@ > #include <linux/iversion.h> > #include <linux/rw_hint.h> > #include <trace/events/writeback.h> > +#define CREATE_TRACE_POINTS > +#include <trace/events/timestamp.h> > + > #include "internal.h" > > /* > @@ -2571,6 +2574,7 @@ struct timespec64 inode_set_ctime_to_ts(struct inode *inode, struct timespec64 t > { > inode->i_ctime_sec = ts.tv_sec; > inode->i_ctime_nsec = ts.tv_nsec & ~I_CTIME_QUERIED; > + trace_inode_set_ctime_to_ts(inode, &ts); > return ts; > } > EXPORT_SYMBOL(inode_set_ctime_to_ts); > @@ -2670,6 +2674,7 @@ struct timespec64 inode_set_ctime_current(struct inode *inode) > if (try_cmpxchg(&inode->i_ctime_nsec, &cur, now_ts.tv_nsec)) { > /* If swap occurred, then we're (mostly) done */ > inode->i_ctime_sec = now_ts.tv_sec; > + trace_ctime_ns_xchg(inode, cns, now_ts.tv_nsec, cur); > } else { > /* > * Was the change due to someone marking the old ctime QUERIED? > diff --git a/fs/stat.c b/fs/stat.c > index df7fdd3afed9..552dfd67688b 100644 > --- a/fs/stat.c > +++ b/fs/stat.c > @@ -23,6 +23,8 @@ > #include <linux/uaccess.h> > #include <asm/unistd.h> > > +#include <trace/events/timestamp.h> > + > #include "internal.h" > #include "mount.h" > > @@ -49,6 +51,7 @@ void fill_mg_cmtime(struct kstat *stat, u32 request_mask, struct inode *inode) > stat->mtime = inode_get_mtime(inode); > stat->ctime.tv_sec = inode->i_ctime_sec; > stat->ctime.tv_nsec = ((u32)atomic_fetch_or(I_CTIME_QUERIED, pcn)) & ~I_CTIME_QUERIED; > + trace_fill_mg_cmtime(inode, &stat->ctime, &stat->mtime); > } > EXPORT_SYMBOL(fill_mg_cmtime); > > diff --git a/include/trace/events/timestamp.h b/include/trace/events/timestamp.h > new file mode 100644 > index 000000000000..3a603190b46c > --- /dev/null > +++ b/include/trace/events/timestamp.h > @@ -0,0 +1,109 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +#undef TRACE_SYSTEM > +#define TRACE_SYSTEM timestamp > + > +#if !defined(_TRACE_TIMESTAMP_H) || defined(TRACE_HEADER_MULTI_READ) > +#define _TRACE_TIMESTAMP_H > + > +#include <linux/tracepoint.h> > +#include <linux/fs.h> > + > +TRACE_EVENT(inode_set_ctime_to_ts, > + TP_PROTO(struct inode *inode, > + struct timespec64 *ctime), > + > + TP_ARGS(inode, ctime), > + > + TP_STRUCT__entry( > + __field(dev_t, dev) > + __field(ino_t, ino) > + __field(time64_t, ctime_s) > + __field(u32, ctime_ns) > + __field(u32, gen) > + ), > + > + TP_fast_assign( > + __entry->dev = inode->i_sb->s_dev; Odd indenting of the second columns between the struct definition above and the assignment code here. > + __entry->ino = inode->i_ino; > + __entry->gen = inode->i_generation; > + __entry->ctime_s = ctime->tv_sec; > + __entry->ctime_ns = ctime->tv_nsec; > + ), > + > + TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u", > + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen, > + __entry->ctime_s, __entry->ctime_ns > + ) > +); > + > +TRACE_EVENT(ctime_ns_xchg, > + TP_PROTO(struct inode *inode, > + u32 old, > + u32 new, > + u32 cur), > + > + TP_ARGS(inode, old, new, cur), > + > + TP_STRUCT__entry( > + __field(dev_t, dev) > + __field(ino_t, ino) > + __field(u32, gen) > + __field(u32, old) > + __field(u32, new) > + __field(u32, cur) > + ), > + > + TP_fast_assign( > + __entry->dev = inode->i_sb->s_dev; > + __entry->ino = inode->i_ino; > + __entry->gen = inode->i_generation; > + __entry->old = old; > + __entry->new = new; > + __entry->cur = cur; > + ), > + > + TP_printk("ino=%d:%d:%ld:%u old=%u:%c new=%u cur=%u:%c", > + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen, > + __entry->old & ~I_CTIME_QUERIED, __entry->old & I_CTIME_QUERIED ? 'Q' : '-', > + __entry->new, > + __entry->cur & ~I_CTIME_QUERIED, __entry->cur & I_CTIME_QUERIED ? 'Q' : '-' This /might/ be overkill for a single flag, but anything you put in the TP_printk seems to end up in the format file: # cat /sys/kernel/debug/tracing/events/xfs/xfbtree_create_root_buf/format name: xfbtree_create_root_buf ID: 1644 format: field:unsigned short common_type; offset:0; size:2; signed:0; field:unsigned char common_flags; offset:2; size:1; signed:0; field:unsigned char common_preempt_count; offset:3; size:1; signed:0; field:int common_pid; offset:4; size:4; signed:1; field:unsigned long xfino; offset:8; size:8; signed:0; field:xfs_daddr_t bno; offset:16; size:8; signed:1; field:int nblks; offset:24; size:4; signed:1; field:int hold; offset:28; size:4; signed:1; field:int pincount; offset:32; size:4; signed:1; field:unsigned int lockval; offset:36; size:4; signed:0; field:unsigned int flags; offset:40; size:4; signed:0; print fmt: "xfino 0x%lx daddr 0x%llx bbcount 0x%x hold %d pincount %d lock %d flags %s", REC->xfino, (unsigned long long)REC->bno, REC->nblks, REC->hold, REC->pincount, REC->lockval, __print_flags(REC->flags, "|", { (1u << 0), "READ" }, { (1u << 1), "WRITE" }, { (1u << 2), "READ_AHEAD" }, { (1u << 3), "NO_IOACCT" }, { (1u << 4), "ASYNC" }, { (1u << 5), "DONE" }, { (1u << 6), "STALE" }, { (1u << 7), "WRITE_FAIL" }, { (1u << 16), "INODES" }, { (1u << 17), "DQUOTS" }, { (1u << 18), "LOG_RECOVERY" }, { (1u << 20), "PAGES" }, { (1u << 21), "KMEM" }, { (1u << 22), "DELWRI_Q" }, { (1u << 28), "LIVESCAN" }, { (1u << 29), "INCORE" }, { (1u << 30), "TRYLOCK" }, { (1u << 31), "UNMAPPED" }) I /think/ all that code gets compiled (interpreted?) as if it were C code, but a more compact format might be: #define CTIME_QUERIED_FLAGS \ { I_CTIME_QUERIED, "queried" } TP_printk("ino=%d:%d:%ld:%u old=%u:%s new=%u cur=%u:%c", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen, __entry->old & ~I_CTIME_QUERIED, __print_flags(__entry->old & I_CTIME_QUERIED, "|", CTIME_QUERIED_FLAGS), ... But, again, that could be overkill for a single flag. Aside from my minor bikeshedding, this all looks good, and I like that we can now monitor what's going on wrt ctime. :) --D > + ) > +); > + > +TRACE_EVENT(fill_mg_cmtime, > + TP_PROTO(struct inode *inode, > + struct timespec64 *ctime, > + struct timespec64 *mtime), > + > + TP_ARGS(inode, ctime, mtime), > + > + TP_STRUCT__entry( > + __field(dev_t, dev) > + __field(ino_t, ino) > + __field(time64_t, ctime_s) > + __field(time64_t, mtime_s) > + __field(u32, ctime_ns) > + __field(u32, mtime_ns) > + __field(u32, gen) > + ), > + > + TP_fast_assign( > + __entry->dev = inode->i_sb->s_dev; > + __entry->ino = inode->i_ino; > + __entry->gen = inode->i_generation; > + __entry->ctime_s = ctime->tv_sec; > + __entry->mtime_s = mtime->tv_sec; > + __entry->ctime_ns = ctime->tv_nsec; > + __entry->mtime_ns = mtime->tv_nsec; > + ), > + > + TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u mtime=%lld.%u", > + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen, > + __entry->ctime_s, __entry->ctime_ns, > + __entry->mtime_s, __entry->mtime_ns > + ) > +); > +#endif /* _TRACE_TIMESTAMP_H */ > + > +/* This part must be outside protection */ > +#include <trace/define_trace.h> > > -- > 2.45.2 > >
On Thu, 2024-07-11 at 09:49 -0700, Darrick J. Wong wrote: > On Thu, Jul 11, 2024 at 07:08:06AM -0400, Jeff Layton wrote: > > Add some tracepoints around various multigrain timestamp events. > > > > Signed-off-by: Jeff Layton <jlayton@kernel.org> > > --- > > fs/inode.c | 5 ++ > > fs/stat.c | 3 ++ > > include/trace/events/timestamp.h | 109 > > +++++++++++++++++++++++++++++++++++++++ > > 3 files changed, 117 insertions(+) > > > > diff --git a/fs/inode.c b/fs/inode.c > > index 2b5889ff7b36..81b45e0a95a6 100644 > > --- a/fs/inode.c > > +++ b/fs/inode.c > > @@ -22,6 +22,9 @@ > > #include <linux/iversion.h> > > #include <linux/rw_hint.h> > > #include <trace/events/writeback.h> > > +#define CREATE_TRACE_POINTS > > +#include <trace/events/timestamp.h> > > + > > #include "internal.h" > > > > /* > > @@ -2571,6 +2574,7 @@ struct timespec64 > > inode_set_ctime_to_ts(struct inode *inode, struct timespec64 t > > { > > inode->i_ctime_sec = ts.tv_sec; > > inode->i_ctime_nsec = ts.tv_nsec & ~I_CTIME_QUERIED; > > + trace_inode_set_ctime_to_ts(inode, &ts); > > return ts; > > } > > EXPORT_SYMBOL(inode_set_ctime_to_ts); > > @@ -2670,6 +2674,7 @@ struct timespec64 > > inode_set_ctime_current(struct inode *inode) > > if (try_cmpxchg(&inode->i_ctime_nsec, &cur, > > now_ts.tv_nsec)) { > > /* If swap occurred, then we're (mostly) done */ > > inode->i_ctime_sec = now_ts.tv_sec; > > + trace_ctime_ns_xchg(inode, cns, now_ts.tv_nsec, > > cur); > > } else { > > /* > > * Was the change due to someone marking the old > > ctime QUERIED? > > diff --git a/fs/stat.c b/fs/stat.c > > index df7fdd3afed9..552dfd67688b 100644 > > --- a/fs/stat.c > > +++ b/fs/stat.c > > @@ -23,6 +23,8 @@ > > #include <linux/uaccess.h> > > #include <asm/unistd.h> > > > > +#include <trace/events/timestamp.h> > > + > > #include "internal.h" > > #include "mount.h" > > > > @@ -49,6 +51,7 @@ void fill_mg_cmtime(struct kstat *stat, u32 > > request_mask, struct inode *inode) > > stat->mtime = inode_get_mtime(inode); > > stat->ctime.tv_sec = inode->i_ctime_sec; > > stat->ctime.tv_nsec = > > ((u32)atomic_fetch_or(I_CTIME_QUERIED, pcn)) & ~I_CTIME_QUERIED; > > + trace_fill_mg_cmtime(inode, &stat->ctime, &stat->mtime); > > } > > EXPORT_SYMBOL(fill_mg_cmtime); > > > > diff --git a/include/trace/events/timestamp.h > > b/include/trace/events/timestamp.h > > new file mode 100644 > > index 000000000000..3a603190b46c > > --- /dev/null > > +++ b/include/trace/events/timestamp.h > > @@ -0,0 +1,109 @@ > > +/* SPDX-License-Identifier: GPL-2.0 */ > > +#undef TRACE_SYSTEM > > +#define TRACE_SYSTEM timestamp > > + > > +#if !defined(_TRACE_TIMESTAMP_H) || > > defined(TRACE_HEADER_MULTI_READ) > > +#define _TRACE_TIMESTAMP_H > > + > > +#include <linux/tracepoint.h> > > +#include <linux/fs.h> > > + > > +TRACE_EVENT(inode_set_ctime_to_ts, > > + TP_PROTO(struct inode *inode, > > + struct timespec64 *ctime), > > + > > + TP_ARGS(inode, ctime), > > + > > + TP_STRUCT__entry( > > + __field(dev_t, dev) > > + __field(ino_t, ino) > > + __field(time64_t, ctime_s) > > + __field(u32, ctime_ns) > > + __field(u32, gen) > > + ), > > + > > + TP_fast_assign( > > + __entry->dev = inode->i_sb->s_dev; > > Odd indenting of the second columns between the struct definition > above > and the assignment code here. > > > + __entry->ino = inode->i_ino; > > + __entry->gen = inode->i_generation; > > + __entry->ctime_s = ctime->tv_sec; > > + __entry->ctime_ns = ctime->tv_nsec; > > + ), > > + > > + TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u", > > + MAJOR(__entry->dev), MINOR(__entry->dev), __entry- > > >ino, __entry->gen, > > + __entry->ctime_s, __entry->ctime_ns > > + ) > > +); > > + > > +TRACE_EVENT(ctime_ns_xchg, > > + TP_PROTO(struct inode *inode, > > + u32 old, > > + u32 new, > > + u32 cur), > > + > > + TP_ARGS(inode, old, new, cur), > > + > > + TP_STRUCT__entry( > > + __field(dev_t, dev) > > + __field(ino_t, ino) > > + __field(u32, gen) > > + __field(u32, old) > > + __field(u32, new) > > + __field(u32, cur) > > + ), > > + > > + TP_fast_assign( > > + __entry->dev = inode->i_sb->s_dev; > > + __entry->ino = inode->i_ino; > > + __entry->gen = inode->i_generation; > > + __entry->old = old; > > + __entry->new = new; > > + __entry->cur = cur; > > + ), > > + > > + TP_printk("ino=%d:%d:%ld:%u old=%u:%c new=%u cur=%u:%c", > > + MAJOR(__entry->dev), MINOR(__entry->dev), __entry- > > >ino, __entry->gen, > > + __entry->old & ~I_CTIME_QUERIED, __entry->old & > > I_CTIME_QUERIED ? 'Q' : '-', > > + __entry->new, > > + __entry->cur & ~I_CTIME_QUERIED, __entry->cur & > > I_CTIME_QUERIED ? 'Q' : '-' > > This /might/ be overkill for a single flag, but anything you put in > the > TP_printk seems to end up in the format file: > > # cat > /sys/kernel/debug/tracing/events/xfs/xfbtree_create_root_buf/format > name: xfbtree_create_root_buf > ID: 1644 > format: > field:unsigned short common_type; offset:0; > size:2; signed:0; > field:unsigned char common_flags; offset:2; > size:1; signed:0; > field:unsigned char common_preempt_count; > offset:3; size:1; signed:0; > field:int common_pid; offset:4; size:4; signed:1; > > field:unsigned long xfino; offset:8; size:8; > signed:0; > field:xfs_daddr_t bno; offset:16; size:8; signed:1; > field:int nblks; offset:24; size:4; signed:1; > field:int hold; offset:28; size:4; signed:1; > field:int pincount; offset:32; size:4; signed:1; > field:unsigned int lockval; offset:36; size:4; > signed:0; > field:unsigned int flags; offset:40; size:4; > signed:0; > > print fmt: "xfino 0x%lx daddr 0x%llx bbcount 0x%x hold %d pincount %d > lock %d flags %s", REC->xfino, (unsigned long long)REC->bno, REC- > >nblks, REC->hold, REC->pincount, REC->lockval, __print_flags(REC- > >flags, "|", { (1u << 0), "READ" }, { (1u << 1), "WRITE" }, { (1u << > 2), "READ_AHEAD" }, { (1u << 3), "NO_IOACCT" }, { (1u << 4), "ASYNC" > }, { (1u << 5), "DONE" }, { (1u << 6), "STALE" }, { (1u << 7), > "WRITE_FAIL" }, { (1u << 16), "INODES" }, { (1u << 17), "DQUOTS" }, { > (1u << 18), "LOG_RECOVERY" }, { (1u << 20), "PAGES" }, { (1u << 21), > "KMEM" }, { (1u << 22), "DELWRI_Q" }, { (1u << 28), "LIVESCAN" }, { > (1u << 29), "INCORE" }, { (1u << 30), "TRYLOCK" }, { (1u << 31), > "UNMAPPED" }) > > I /think/ all that code gets compiled (interpreted?) as if it were C > code, but a more compact format might be: > > #define CTIME_QUERIED_FLAGS \ > { I_CTIME_QUERIED, "queried" } > > TP_printk("ino=%d:%d:%ld:%u old=%u:%s new=%u cur=%u:%c", > MAJOR(__entry->dev), MINOR(__entry->dev), __entry- > >ino, __entry->gen, > __entry->old & ~I_CTIME_QUERIED, > __print_flags(__entry->old & I_CTIME_QUERIED, "|", > CTIME_QUERIED_FLAGS), > ... > > But, again, that could be overkill for a single flag. Aside from my > minor bikeshedding, this all looks good, and I like that we can now > monitor what's going on wrt ctime. :) > That seems reasonable. I hadn't looked at the unrolled format monstrosity, but making it more compact is good. I'll make that change and see how it looks. Thanks for the reviews so far! > > + ) > > +); > > + > > +TRACE_EVENT(fill_mg_cmtime, > > + TP_PROTO(struct inode *inode, > > + struct timespec64 *ctime, > > + struct timespec64 *mtime), > > + > > + TP_ARGS(inode, ctime, mtime), > > + > > + TP_STRUCT__entry( > > + __field(dev_t, dev) > > + __field(ino_t, ino) > > + __field(time64_t, ctime_s) > > + __field(time64_t, mtime_s) > > + __field(u32, ctime_ns) > > + __field(u32, mtime_ns) > > + __field(u32, gen) > > + ), > > + > > + TP_fast_assign( > > + __entry->dev = inode->i_sb->s_dev; > > + __entry->ino = inode->i_ino; > > + __entry->gen = inode->i_generation; > > + __entry->ctime_s = ctime->tv_sec; > > + __entry->mtime_s = mtime->tv_sec; > > + __entry->ctime_ns = ctime->tv_nsec; > > + __entry->mtime_ns = mtime->tv_nsec; > > + ), > > + > > + TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u mtime=%lld.%u", > > + MAJOR(__entry->dev), MINOR(__entry->dev), __entry- > > >ino, __entry->gen, > > + __entry->ctime_s, __entry->ctime_ns, > > + __entry->mtime_s, __entry->mtime_ns > > + ) > > +); > > +#endif /* _TRACE_TIMESTAMP_H */ > > + > > +/* This part must be outside protection */ > > +#include <trace/define_trace.h> > > > > -- > > 2.45.2 > > > >
diff --git a/fs/inode.c b/fs/inode.c index 2b5889ff7b36..81b45e0a95a6 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -22,6 +22,9 @@ #include <linux/iversion.h> #include <linux/rw_hint.h> #include <trace/events/writeback.h> +#define CREATE_TRACE_POINTS +#include <trace/events/timestamp.h> + #include "internal.h" /* @@ -2571,6 +2574,7 @@ struct timespec64 inode_set_ctime_to_ts(struct inode *inode, struct timespec64 t { inode->i_ctime_sec = ts.tv_sec; inode->i_ctime_nsec = ts.tv_nsec & ~I_CTIME_QUERIED; + trace_inode_set_ctime_to_ts(inode, &ts); return ts; } EXPORT_SYMBOL(inode_set_ctime_to_ts); @@ -2670,6 +2674,7 @@ struct timespec64 inode_set_ctime_current(struct inode *inode) if (try_cmpxchg(&inode->i_ctime_nsec, &cur, now_ts.tv_nsec)) { /* If swap occurred, then we're (mostly) done */ inode->i_ctime_sec = now_ts.tv_sec; + trace_ctime_ns_xchg(inode, cns, now_ts.tv_nsec, cur); } else { /* * Was the change due to someone marking the old ctime QUERIED? diff --git a/fs/stat.c b/fs/stat.c index df7fdd3afed9..552dfd67688b 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -23,6 +23,8 @@ #include <linux/uaccess.h> #include <asm/unistd.h> +#include <trace/events/timestamp.h> + #include "internal.h" #include "mount.h" @@ -49,6 +51,7 @@ void fill_mg_cmtime(struct kstat *stat, u32 request_mask, struct inode *inode) stat->mtime = inode_get_mtime(inode); stat->ctime.tv_sec = inode->i_ctime_sec; stat->ctime.tv_nsec = ((u32)atomic_fetch_or(I_CTIME_QUERIED, pcn)) & ~I_CTIME_QUERIED; + trace_fill_mg_cmtime(inode, &stat->ctime, &stat->mtime); } EXPORT_SYMBOL(fill_mg_cmtime); diff --git a/include/trace/events/timestamp.h b/include/trace/events/timestamp.h new file mode 100644 index 000000000000..3a603190b46c --- /dev/null +++ b/include/trace/events/timestamp.h @@ -0,0 +1,109 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM timestamp + +#if !defined(_TRACE_TIMESTAMP_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_TIMESTAMP_H + +#include <linux/tracepoint.h> +#include <linux/fs.h> + +TRACE_EVENT(inode_set_ctime_to_ts, + TP_PROTO(struct inode *inode, + struct timespec64 *ctime), + + TP_ARGS(inode, ctime), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(time64_t, ctime_s) + __field(u32, ctime_ns) + __field(u32, gen) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->gen = inode->i_generation; + __entry->ctime_s = ctime->tv_sec; + __entry->ctime_ns = ctime->tv_nsec; + ), + + TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen, + __entry->ctime_s, __entry->ctime_ns + ) +); + +TRACE_EVENT(ctime_ns_xchg, + TP_PROTO(struct inode *inode, + u32 old, + u32 new, + u32 cur), + + TP_ARGS(inode, old, new, cur), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(u32, gen) + __field(u32, old) + __field(u32, new) + __field(u32, cur) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->gen = inode->i_generation; + __entry->old = old; + __entry->new = new; + __entry->cur = cur; + ), + + TP_printk("ino=%d:%d:%ld:%u old=%u:%c new=%u cur=%u:%c", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen, + __entry->old & ~I_CTIME_QUERIED, __entry->old & I_CTIME_QUERIED ? 'Q' : '-', + __entry->new, + __entry->cur & ~I_CTIME_QUERIED, __entry->cur & I_CTIME_QUERIED ? 'Q' : '-' + ) +); + +TRACE_EVENT(fill_mg_cmtime, + TP_PROTO(struct inode *inode, + struct timespec64 *ctime, + struct timespec64 *mtime), + + TP_ARGS(inode, ctime, mtime), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(time64_t, ctime_s) + __field(time64_t, mtime_s) + __field(u32, ctime_ns) + __field(u32, mtime_ns) + __field(u32, gen) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->gen = inode->i_generation; + __entry->ctime_s = ctime->tv_sec; + __entry->mtime_s = mtime->tv_sec; + __entry->ctime_ns = ctime->tv_nsec; + __entry->mtime_ns = mtime->tv_nsec; + ), + + TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u mtime=%lld.%u", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen, + __entry->ctime_s, __entry->ctime_ns, + __entry->mtime_s, __entry->mtime_ns + ) +); +#endif /* _TRACE_TIMESTAMP_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h>
Add some tracepoints around various multigrain timestamp events. Signed-off-by: Jeff Layton <jlayton@kernel.org> --- fs/inode.c | 5 ++ fs/stat.c | 3 ++ include/trace/events/timestamp.h | 109 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 117 insertions(+)