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| author | Vishal Verma <vishal.l.verma@intel.com> | 2016-04-21 15:13:46 -0400 |
|---|---|---|
| committer | Vishal Verma <vishal.l.verma@intel.com> | 2016-05-18 12:16:57 -0600 |
| commit | 4b0228fa1d753f77fe0e6cf4c41398ec77dfbd2a (patch) | |
| tree | 323a881d26a983060f82477b8391717fa5b10e9d /tools/perf/scripts/python | |
| parent | dax: export a low-level __dax_zero_page_range helper (diff) | |
| download | linux-4b0228fa1d753f77fe0e6cf4c41398ec77dfbd2a.tar.gz linux-4b0228fa1d753f77fe0e6cf4c41398ec77dfbd2a.zip | |
dax: for truncate/hole-punch, do zeroing through the driver if possible
In the truncate or hole-punch path in dax, we clear out sub-page ranges.
If these sub-page ranges are sector aligned and sized, we can do the
zeroing through the driver instead so that error-clearing is handled
automatically.
For sub-sector ranges, we still have to rely on clear_pmem and have the
possibility of tripping over errors.
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions