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Add a more verbose/immediate warning if we fail open with O_DIRECT
[fio.git]
/
filesetup.c
diff --git
a/filesetup.c
b/filesetup.c
index a1ad02633f10d2871adc8d93dc83e833f3afa340..b1f73f7131cb6dfe086bdd45f9cd269e7cf963f2 100644
(file)
--- a/
filesetup.c
+++ b/
filesetup.c
@@
-526,6
+526,11
@@
open_again:
snprintf(buf, sizeof(buf) - 1, "open(%s)", f->file_name);
+ if (__e == EINVAL && (flags & OS_O_DIRECT)) {
+ log_err("fio: looks like your file system does not " \
+ "support direct=1/buffered=0\n");
+ }
+
td_verror(td, __e, buf);
}