diff options
Diffstat (limited to 'xlators/performance')
| -rw-r--r-- | xlators/performance/open-behind/src/open-behind.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/xlators/performance/open-behind/src/open-behind.c b/xlators/performance/open-behind/src/open-behind.c index 29ef64364dc..742e4df3fdf 100644 --- a/xlators/performance/open-behind/src/open-behind.c +++ b/xlators/performance/open-behind/src/open-behind.c @@ -23,6 +23,11 @@ typedef struct ob_conf { like mandatory locks */ gf_boolean_t lazy_open; /* delay backend open as much as possible */ + gf_boolean_t read_after_open; /* instead of sending readvs on + anonymous fds, open the file + first and then send readv i.e + similar to what writev does + */ } ob_conf_t; @@ -367,8 +372,14 @@ ob_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, { call_stub_t *stub = NULL; fd_t *wind_fd = NULL; + ob_conf_t *conf = NULL; - wind_fd = ob_get_wind_fd (this, fd); + conf = this->private; + + if (!conf->read_after_open) + wind_fd = ob_get_wind_fd (this, fd); + else + wind_fd = fd_ref (fd); stub = fop_readv_stub (frame, default_readv_resume, wind_fd, size, offset, flags, xdata); @@ -894,6 +905,8 @@ reconfigure (xlator_t *this, dict_t *options) bool, out); GF_OPTION_RECONF ("lazy-open", conf->lazy_open, options, bool, out); + GF_OPTION_RECONF ("read-after-open", conf->read_after_open, options, + bool, out); ret = 0; out: @@ -924,7 +937,7 @@ init (xlator_t *this) GF_OPTION_INIT ("use-anonymous-fd", conf->use_anonymous_fd, bool, err); GF_OPTION_INIT ("lazy-open", conf->lazy_open, bool, err); - + GF_OPTION_INIT ("read-after-open", conf->read_after_open, bool, err); this->private = conf; return 0; @@ -996,6 +1009,12 @@ struct volume_options options[] = { "FOP arrives (e.g writev on the FD, unlink of the file). When option " "is disabled, perform backend open right after unwinding open().", }, + { .key = {"read-after-open"}, + .type = GF_OPTION_TYPE_BOOL, + .default_value = "no", + .description = "read is sent only after actual open happens and real " + "fd is obtained, instead of doing on anonymous fd (similar to write)", + }, { .key = {NULL} } }; |