216 lines
7.1 KiB
Diff
216 lines
7.1 KiB
Diff
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From a7a56c079df2eb0253efdd53e1538656c0ce9095 Mon Sep 17 00:00:00 2001
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From: Yaniv Kaul <ykaul@redhat.com>
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Date: Mon, 25 Nov 2019 15:37:46 +0200
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Subject: [PATCH 564/584] store.c/glusterd-store.c: remove sys_stat calls
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Instead of querying for the file size and allocating a char array
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according to its size, let's just use a fixed size.
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Those calls are not really needed, and are either expensive or
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cached anyway. Since we do dynamic allocation/free, let's just use
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a fixed array instead.
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I'll see if there are other sys_stat() calls that are not really
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useful and try to eliminate them in separate patches.
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Backport of:
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> Upstream-patch: https://review.gluster.org/#/c/glusterfs/+/23752/
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> Change-Id: I76b40e78a52ab38f613fc0cdef4be60e6253bf20
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> updates: bz#1193929
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> Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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BUG: 1925425
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Change-Id: I76b40e78a52ab38f613fc0cdef4be60e6253bf20
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Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/c/rhs-glusterfs/+/244958
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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libglusterfs/src/glusterfs/store.h | 4 +-
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libglusterfs/src/store.c | 71 ++++--------------------------
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xlators/mgmt/glusterd/src/glusterd-store.c | 5 +--
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3 files changed, 12 insertions(+), 68 deletions(-)
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diff --git a/libglusterfs/src/glusterfs/store.h b/libglusterfs/src/glusterfs/store.h
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index 3b3a24c..f63bd05 100644
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--- a/libglusterfs/src/glusterfs/store.h
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+++ b/libglusterfs/src/glusterfs/store.h
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@@ -59,8 +59,8 @@ int32_t
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gf_store_unlink_tmppath(gf_store_handle_t *shandle);
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int
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-gf_store_read_and_tokenize(FILE *file, char *str, int size, char **iter_key,
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- char **iter_val, gf_store_op_errno_t *store_errno);
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+gf_store_read_and_tokenize(FILE *file, char **iter_key, char **iter_val,
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+ gf_store_op_errno_t *store_errno);
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int32_t
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gf_store_retrieve_value(gf_store_handle_t *handle, char *key, char **value);
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diff --git a/libglusterfs/src/store.c b/libglusterfs/src/store.c
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index cdf0aea..fa3649b 100644
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--- a/libglusterfs/src/store.c
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+++ b/libglusterfs/src/store.c
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@@ -184,8 +184,8 @@ out:
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}
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int
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-gf_store_read_and_tokenize(FILE *file, char *str, int size, char **iter_key,
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- char **iter_val, gf_store_op_errno_t *store_errno)
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+gf_store_read_and_tokenize(FILE *file, char **iter_key, char **iter_val,
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+ gf_store_op_errno_t *store_errno)
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{
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int32_t ret = -1;
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char *savetok = NULL;
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@@ -193,15 +193,15 @@ gf_store_read_and_tokenize(FILE *file, char *str, int size, char **iter_key,
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char *value = NULL;
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char *temp = NULL;
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size_t str_len = 0;
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+ char str[8192];
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GF_ASSERT(file);
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- GF_ASSERT(str);
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GF_ASSERT(iter_key);
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GF_ASSERT(iter_val);
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GF_ASSERT(store_errno);
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retry:
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- temp = fgets(str, size, file);
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+ temp = fgets(str, 8192, file);
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if (temp == NULL || feof(file)) {
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ret = -1;
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*store_errno = GD_STORE_EOF;
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@@ -241,13 +241,8 @@ int32_t
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gf_store_retrieve_value(gf_store_handle_t *handle, char *key, char **value)
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{
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int32_t ret = -1;
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- char *scan_str = NULL;
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char *iter_key = NULL;
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char *iter_val = NULL;
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- char *free_str = NULL;
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- struct stat st = {
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- 0,
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- };
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gf_store_op_errno_t store_errno = GD_STORE_SUCCESS;
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GF_ASSERT(handle);
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@@ -279,32 +274,9 @@ gf_store_retrieve_value(gf_store_handle_t *handle, char *key, char **value)
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} else {
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fseek(handle->read, 0, SEEK_SET);
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}
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- ret = sys_fstat(handle->fd, &st);
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- if (ret < 0) {
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- gf_msg("", GF_LOG_WARNING, errno, LG_MSG_FILE_OP_FAILED,
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- "stat on file %s failed", handle->path);
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- ret = -1;
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- store_errno = GD_STORE_STAT_FAILED;
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- goto out;
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- }
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-
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- /* "st.st_size + 1" is used as we are fetching each
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- * line of a file using fgets, fgets will append "\0"
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- * to the end of the string
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- */
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- scan_str = GF_CALLOC(1, st.st_size + 1, gf_common_mt_char);
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-
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- if (scan_str == NULL) {
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- ret = -1;
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- store_errno = GD_STORE_ENOMEM;
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- goto out;
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- }
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-
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- free_str = scan_str;
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-
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do {
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- ret = gf_store_read_and_tokenize(handle->read, scan_str, st.st_size + 1,
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- &iter_key, &iter_val, &store_errno);
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+ ret = gf_store_read_and_tokenize(handle->read, &iter_key, &iter_val,
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+ &store_errno);
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if (ret < 0) {
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gf_msg_trace("", 0,
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"error while reading key '%s': "
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@@ -334,8 +306,6 @@ out:
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sys_close(handle->fd);
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}
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- GF_FREE(free_str);
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-
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return ret;
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}
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@@ -561,40 +531,16 @@ gf_store_iter_get_next(gf_store_iter_t *iter, char **key, char **value,
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gf_store_op_errno_t *op_errno)
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{
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int32_t ret = -1;
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- char *scan_str = NULL;
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char *iter_key = NULL;
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char *iter_val = NULL;
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- struct stat st = {
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- 0,
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- };
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gf_store_op_errno_t store_errno = GD_STORE_SUCCESS;
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GF_ASSERT(iter);
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GF_ASSERT(key);
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GF_ASSERT(value);
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- ret = sys_stat(iter->filepath, &st);
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- if (ret < 0) {
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- gf_msg("", GF_LOG_WARNING, errno, LG_MSG_FILE_OP_FAILED,
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- "stat on file failed");
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- ret = -1;
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- store_errno = GD_STORE_STAT_FAILED;
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- goto out;
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- }
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-
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- /* "st.st_size + 1" is used as we are fetching each
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- * line of a file using fgets, fgets will append "\0"
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- * to the end of the string
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- */
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- scan_str = GF_CALLOC(1, st.st_size + 1, gf_common_mt_char);
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- if (!scan_str) {
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- ret = -1;
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- store_errno = GD_STORE_ENOMEM;
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- goto out;
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- }
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-
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- ret = gf_store_read_and_tokenize(iter->file, scan_str, st.st_size + 1,
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- &iter_key, &iter_val, &store_errno);
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+ ret = gf_store_read_and_tokenize(iter->file, &iter_key, &iter_val,
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+ &store_errno);
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if (ret < 0) {
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goto out;
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}
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@@ -619,7 +565,6 @@ gf_store_iter_get_next(gf_store_iter_t *iter, char **key, char **value,
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ret = 0;
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out:
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- GF_FREE(scan_str);
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if (ret) {
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GF_FREE(*key);
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GF_FREE(*value);
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diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
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index 4fa8116..da63c03 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-store.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
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@@ -4092,7 +4092,6 @@ out:
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int32_t
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glusterd_store_retrieve_missed_snaps_list(xlator_t *this)
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{
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- char buf[PATH_MAX] = "";
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char path[PATH_MAX] = "";
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char *snap_vol_id = NULL;
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char *missed_node_info = NULL;
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@@ -4129,8 +4128,8 @@ glusterd_store_retrieve_missed_snaps_list(xlator_t *this)
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}
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do {
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- ret = gf_store_read_and_tokenize(
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- fp, buf, sizeof(buf), &missed_node_info, &value, &store_errno);
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+ ret = gf_store_read_and_tokenize(fp, &missed_node_info, &value,
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+ &store_errno);
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if (ret) {
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if (store_errno == GD_STORE_EOF) {
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gf_msg_debug(this->name, 0, "EOF for missed_snap_list");
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--
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1.8.3.1
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