Messages in this thread |  | | | Subject | Re: [PATCH 0/2][GIT PULL] tracing/filters: adjustements for strings | | From | Tom Zanussi <> | | Date | Sun, 03 May 2009 23:47:22 -0500 |
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Hi,
On Sun, 2009-05-03 at 03:50 +0200, Frederic Weisbecker wrote: > Hi, > > The following patchset includes two little peas of features > for tracing filters, making them able to filter every kind of strings. > > Now I can do this: > > cd /debug/tracing > echo > trace > echo stacktrace > trace_options > > cd events/lockdep > echo 'name == "&REISERFS_SB(s)->lock" && wait_usec > 0' > lock_acquired/filter > > echo 1 > lock_acquired/enable > sleep 1 > echo 0 > lock_acquired/enable > > cat trace > > # tracer: nop > # > # TASK-PID CPU# TIMESTAMP FUNCTION > # | | | | | > <...>-6464 [000] 327.448232: lock_acquired: &REISERFS_SB(s)->lock (25058.984 us) > <...>-6464 [000] 327.448233: > <= reiserfs_get_block > <= __block_prepare_write > <= block_write_begin > <= reiserfs_write_begin > <= generic_file_buffered_write > <= __generic_file_aio_write_nolock > <= generic_file_aio_write > <...>-6470 [000] 327.448422: lock_acquired: &REISERFS_SB(s)->lock (25112.702 us) > <...>-6470 [000] 327.448425: > <= reiserfs_update_sd_size > <= reiserfs_write_end > <= generic_file_buffered_write > <= __generic_file_aio_write_nolock > <= generic_file_aio_write > <= do_sync_write > <= reiserfs_file_write > > > Tom, your filter framework is awesome and very useful! > Thanks :-)
Thanks! And thanks for adding these new useful features, too - the patches look good to me...
Acked-by: Tom Zanussi <tzanussi@gmail.com>
Tom
> > Frederic. > --- > > The following changes since commit a0e39ed378fb6ba916522764cd508fa7d42ad495: > Heiko Carstens (1): > tracing: fix build failure on s390 > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git tracing/filters > > Frederic Weisbecker (2): > tracing/filters: support for filters of dynamic sized arrays > tracing/filters: support for operator reserved characters in strings > > kernel/trace/trace_events_filter.c | 54 ++++++++++++++++++++++++++++++++++-- > 1 files changed, 51 insertions(+), 3 deletions(-)
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