On Wed, Dec 13, 2017 at 8:03 AM, Darrick J. Wong
<darrick.wong@xxxxxxxxxx> wrote:
> From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
>
> Mix it up a bit by reflinking and deduping data blocks when possible.
>
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> ---
> ltp/fsstress.c | 440 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 440 insertions(+)
>
>
> diff --git a/ltp/fsstress.c b/ltp/fsstress.c
> index 96f48b1..e2dfa5e 100644
> --- a/ltp/fsstress.c
> +++ b/ltp/fsstress.c
> @@ -68,7 +68,9 @@ typedef enum {
> OP_BULKSTAT,
> OP_BULKSTAT1,
> OP_CHOWN,
> + OP_CLONERANGE,
> OP_CREAT,
> + OP_DEDUPERANGE,
> OP_DREAD,
> OP_DWRITE,
> OP_FALLOCATE,
> @@ -174,7 +176,9 @@ void awrite_f(int, long);
> void bulkstat_f(int, long);
> void bulkstat1_f(int, long);
> void chown_f(int, long);
> +void clonerange_f(int, long);
> void creat_f(int, long);
> +void deduperange_f(int, long);
> void dread_f(int, long);
> void dwrite_f(int, long);
> void fallocate_f(int, long);
> @@ -221,7 +225,9 @@ opdesc_t ops[] = {
> { OP_BULKSTAT, "bulkstat", bulkstat_f, 1, 0 },
> { OP_BULKSTAT1, "bulkstat1", bulkstat1_f, 1, 0 },
> { OP_CHOWN, "chown", chown_f, 3, 1 },
> + { OP_CLONERANGE, "clonerange", clonerange_f, 4, 1 },
> { OP_CREAT, "creat", creat_f, 4, 1 },
> + { OP_DEDUPERANGE, "deduperange", deduperange_f, 4, 1},
> { OP_DREAD, "dread", dread_f, 4, 0 },
> { OP_DWRITE, "dwrite", dwrite_f, 4, 1 },
> { OP_FALLOCATE, "fallocate", fallocate_f, 1, 1 },
> @@ -1312,6 +1318,16 @@ make_freq_table(void)
> }
> }
>
> +void
> +free_freq_table(void)
> +{
> + if (!freq_table)
> + return;
> + free(freq_table);
> + freq_table = NULL;
> + freq_table_size = 0;
> +}
> +
> int
> mkdir_path(pathname_t *name, mode_t mode)
> {
> @@ -2189,6 +2205,430 @@ chown_f(int opno, long r)
> free_pathname(&f);
> }
>
> +static void
> +disable_op(opty_t opt)
> +{
> + opdesc_t *p;
> +
> + for (p = ops; p < ops_end; p++) {
> + if (opt == p->op) {
> + p->freq = 0;
> + free_freq_table();
> + make_freq_table();
> + return;
> + }
> + }
> +}
> +
If we want to go down the path of runtime disable ops, the question is:
Why disable_op clonerange/deduperange and not disable_op
insert/collapse/zero/punch? there are probably other ops as well.
This is also inconsistent by the fact that build time disable of
neither FALLOC nor LONERANGE/DEDUPERANGE will not
change the random op sequence, while runtime disable will.
This is related to the conversation of the golden output of xfs/068.
Will take my arguments there now...
Amir.
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