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| author | Dave Chinner <dchinner@redhat.com> | 2018-03-08 20:35:22 -0600 |
|---|---|---|
| committer | Eric Sandeen <sandeen@redhat.com> | 2018-03-08 20:35:22 -0600 |
| commit | d97638251b67861786b3dbfeab6555c5ea3660b0 (patch) | |
| tree | e2f8b2db1975ea1f400288191def6b321b016269 | |
| parent | 9d50331ab193c26d133bc8fd164f1054fb87312f (diff) | |
| download | xfsprogs-dev-d97638251b67861786b3dbfeab6555c5ea3660b0.tar.gz | |
xfs_io: add RWF_DSYNC support to pwrite
Enable testing write behaviour with the per-io RWF_DSYNC flag.
Signed-Off-By: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
| -rw-r--r-- | io/pwrite.c | 8 | ||||
| -rw-r--r-- | man/man8/xfs_io.8 | 10 |
2 files changed, 14 insertions, 4 deletions
diff --git a/io/pwrite.c b/io/pwrite.c index afbe428441..d06af4b3c1 100644 --- a/io/pwrite.c +++ b/io/pwrite.c @@ -56,6 +56,7 @@ pwrite_help(void) #endif #ifdef HAVE_PWRITEV2 " -N -- Perform the pwritev2() with RWF_NOWAIT\n" +" -D -- Perform the pwritev2() with RWF_DSYNC\n" #endif "\n")); } @@ -301,7 +302,7 @@ pwrite_f( init_cvtnum(&fsblocksize, &fssectsize); bsize = fsblocksize; - while ((c = getopt(argc, argv, "b:BCdf:Fi:NqRs:OS:uV:wWZ:")) != EOF) { + while ((c = getopt(argc, argv, "b:BCdDf:Fi:NqRs:OS:uV:wWZ:")) != EOF) { switch (c) { case 'b': tmp = cvtnum(fsblocksize, fssectsize, optarg); @@ -337,6 +338,9 @@ pwrite_f( case 'N': pwritev2_flags |= RWF_NOWAIT; break; + case 'D': + pwritev2_flags |= RWF_DSYNC; + break; #endif case 's': skip = cvtnum(fsblocksize, fssectsize, optarg); @@ -471,7 +475,7 @@ pwrite_init(void) pwrite_cmd.argmax = -1; pwrite_cmd.flags = CMD_NOMAP_OK | CMD_FOREIGN_OK; pwrite_cmd.args = -_("[-i infile [-dwNOW] [-s skip]] [-b bs] [-S seed] [-FBR [-Z N]] [-V N] off len"); +_("[-i infile [-dDwNOW] [-s skip]] [-b bs] [-S seed] [-FBR [-Z N]] [-V N] off len"); pwrite_cmd.oneline = _("writes a number of bytes at a specified offset"); pwrite_cmd.help = pwrite_help; diff --git a/man/man8/xfs_io.8 b/man/man8/xfs_io.8 index 364088c82c..c3ab532da0 100644 --- a/man/man8/xfs_io.8 +++ b/man/man8/xfs_io.8 @@ -222,7 +222,7 @@ See the .B pread command. .TP -.BI "pwrite [ \-i " file " ] [ \-dwNOW ] [ \-s " skip " ] [ \-b " size " ] [ \-S " seed " ] [ \-FBR [ \-Z " zeed " ] ] [ \-V " vectors " ] " "offset length" +.BI "pwrite [ \-i " file " ] [ \-dDwNOW ] [ \-s " skip " ] [ \-b " size " ] [ \-S " seed " ] [ \-FBR [ \-Z " zeed " ] ] [ \-V " vectors " ] " "offset length" Writes a range of bytes in a specified blocksize from the given .IR offset . The bytes written can be either a set pattern or read in from another @@ -248,7 +248,13 @@ once all writes are complete (included in timing results) Perform the .BR pwritev2 (2) call with -.I RWF_NOWAIT. +.IR RWF_NOWAIT . +.TP +.B \-D +Perform the +.BR pwritev2 (2) +call with +.IR RWF_DSYNC . .TP .B \-O perform pwrite once and return the (maybe partial) bytes written. |