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359d992 xfs: simplify kmem_{zone_}zalloc
d123031 xfs: add tracepoints to AGF/AGI read operations
750b9c9 xfs: trace AIL manipulations
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commit 359d992bcd398273637cd9edde10afca953783c4
Author: Gu Zheng <guz.fnst@xxxxxxxxxxxxxx>
Date: Mon Nov 4 18:21:05 2013 +0800
xfs: simplify kmem_{zone_}zalloc
Introduce flag KM_ZERO which is used to alloc zeroed entry, and convert
kmem_{zone_}zalloc to call kmem_{zone_}alloc() with KM_ZERO directly,
in order to avoid the setting to zero step.
And following Dave's suggestion, make kmem_{zone_}zalloc static inline
into kmem.h as they're now just a simple wrapper.
V2:
Make kmem_{zone_}zalloc static inline into kmem.h as Dave suggested.
Signed-off-by: Gu Zheng <guz.fnst@xxxxxxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit d123031a5673cd38a85ce66cc07243dfe5f424c9
Author: Dave Chinner <dchinner@xxxxxxxxxx>
Date: Fri Nov 1 15:27:19 2013 +1100
xfs: add tracepoints to AGF/AGI read operations
To help track down AGI/AGF lock ordering issues, I added these
tracepoints to tell us when an AGI or AGF is read and locked. With
these we can now determine if the lock ordering goes wrong from
tracing captures.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
commit 750b9c90668b173a92b20e747b9736b8537eda5a
Author: Dave Chinner <dchinner@xxxxxxxxxx>
Date: Fri Nov 1 15:27:18 2013 +1100
xfs: trace AIL manipulations
I debugging a log tail issue on a RHEL6 kernel, I added these trace
points to trace log items being added, moved and removed in the AIL
and how that affected the log tail LSN that was written to the log.
They were very helpful in that they immediately identified the cause
of the problem being seen. Hence I'd like to always have them
available for use.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Ben Myers <bpm@xxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
fs/xfs/kmem.c | 22 -------------
fs/xfs/kmem.h | 21 +++++++++++--
fs/xfs/xfs_alloc.c | 5 ++-
fs/xfs/xfs_ialloc.c | 6 +++-
fs/xfs/xfs_log.c | 1 +
fs/xfs/xfs_trace.h | 84 +++++++++++++++++++++++++++++++++++++++++++++++++-
fs/xfs/xfs_trans_ail.c | 3 ++
7 files changed, 114 insertions(+), 28 deletions(-)
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