diff options
Diffstat (limited to 'xlators/performance/md-cache/src/md-cache.c')
| -rw-r--r-- | xlators/performance/md-cache/src/md-cache.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/xlators/performance/md-cache/src/md-cache.c b/xlators/performance/md-cache/src/md-cache.c index b94dade5ebc..74aafdbd8d0 100644 --- a/xlators/performance/md-cache/src/md-cache.c +++ b/xlators/performance/md-cache/src/md-cache.c @@ -14,6 +14,7 @@ #endif #include "glusterfs.h" +#include "defaults.h" #include "logging.h" #include "dict.h" #include "xlator.h" @@ -743,6 +744,50 @@ mdc_load_reqs (xlator_t *this, dict_t *dict) } +static char* +mdc_serialize_loaded_key_names (xlator_t *this) +{ + int max_len = 0; + int len = 0; + int i = 0; + char *mdc_key_names = NULL; + const char *mdc_key = NULL; + gf_boolean_t at_least_one_key_loaded = _gf_false; + + for (mdc_key = mdc_keys[i].name; (mdc_key = mdc_keys[i].name); i++) { + max_len += (strlen(mdc_keys[i].name) + 1); + if (mdc_keys[i].load) + at_least_one_key_loaded = _gf_true; + } + + if (!at_least_one_key_loaded) + goto out; + + mdc_key_names = GF_CALLOC (1, max_len + 1, gf_common_mt_char); + if (!mdc_key_names) + goto out; + + i = 0; + for (mdc_key = mdc_keys[i].name; (mdc_key = mdc_keys[i].name); i++) { + if (!mdc_keys[i].load) + continue; + strcat (mdc_key_names, mdc_keys[i].name); + strcat (mdc_key_names, " "); + } + + len = strlen (mdc_key_names); + if (len > 0) { + mdc_key_names[len - 1] = '\0'; + } else { + GF_FREE (mdc_key_names); + mdc_key_names = NULL; + } + +out: + return mdc_key_names; +} + + struct checkpair { int ret; dict_t *rsp; @@ -1980,6 +2025,40 @@ mdc_fremovexattr (call_frame_t *frame, xlator_t *this, fd_t *fd, int +mdc_opendir(call_frame_t *frame, xlator_t *this, loc_t *loc, + fd_t *fd, dict_t *xdata) +{ + int ret = -1; + char *mdc_key_names = NULL; + dict_t *xattr_alloc = NULL; + + if (!xdata) + xdata = xattr_alloc = dict_new (); + + if (xdata) { + /* Tell readdir-ahead to include these keys in xdata when it + * internally issues readdirp() in it's opendir_cbk */ + mdc_key_names = mdc_serialize_loaded_key_names(this); + if (!mdc_key_names) + goto wind; + ret = dict_set_dynstr (xdata, GF_MDC_LOADED_KEY_NAMES, + mdc_key_names); + if (ret) + goto wind; + } + +wind: + STACK_WIND (frame, default_opendir_cbk, FIRST_CHILD(this), + FIRST_CHILD(this)->fops->opendir, loc, fd, xdata); + + if (xattr_alloc) + dict_unref (xattr_alloc); + + return 0; +} + + +int mdc_readdirp_cbk (call_frame_t *frame, void *cookie, xlator_t *this, int op_ret, int op_errno, gf_dirent_t *entries, dict_t *xdata) { @@ -2322,6 +2401,7 @@ struct xlator_fops fops = { .fgetxattr = mdc_fgetxattr, .removexattr = mdc_removexattr, .fremovexattr= mdc_fremovexattr, + .opendir = mdc_opendir, .readdirp = mdc_readdirp, .readdir = mdc_readdir, .fallocate = mdc_fallocate, |