coreutils: use coreutils instead of duplicate code

Change-Id: I0e442331d2bbb22ec18c37af87ab2a8852737c43
BUG: 1448265
Signed-off-by: Zhou Zhengping <johnzzpcrystal@gmail.com>
Reviewed-on: https://review.gluster.org/16975
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Prashanth Pai <ppai@redhat.com>
Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>

4 files changed, 13 insertions, 23 deletions

diff --git a/xlators/encryption/crypt/src/atom.c b/xlators/encryption/crypt/src/atom.c
index 21d63e5d6d6..6d7b351b370 100644
--- a/xlators/encryption/crypt/src/atom.c
+++ b/xlators/encryption/crypt/src/atom.c
@@ -502,7 +502,7 @@ static int32_t rmw_partial_block(call_frame_t *frame,
 #endif
 	set_local_io_params_writev(frame, object, atom,
 				   atom->offset_at(frame, object),
-				   iovec_get_size(partial, 1));
+				   iov_length(partial, 1));
 	/*
 	 * write the whole block to disk
 	 */
@@ -522,7 +522,7 @@ static int32_t rmw_partial_block(call_frame_t *frame,
 
 	gf_log("crypt", GF_LOG_DEBUG,
 	       "submit partial block: %d bytes from %d offset",
-	       (int)iovec_get_size(partial, 1),
+	       (int)iov_length(partial, 1),
 	       (int)atom->offset_at(frame, object));
  exit:
 	return 0;
diff --git a/xlators/encryption/crypt/src/crypt.c b/xlators/encryption/crypt/src/crypt.c
index 2982bb26db0..0dd076bd897 100644
--- a/xlators/encryption/crypt/src/crypt.c
+++ b/xlators/encryption/crypt/src/crypt.c
@@ -148,7 +148,7 @@ static void check_read(call_frame_t *frame, xlator_t *this, int32_t read,
 
 	if (read <= 0)
 		return;
-	if (read != iovec_get_size(vec, count))
+	if (read != iov_length(vec, count))
 		gf_log ("crypt", GF_LOG_DEBUG,
 			"op_ret differs from amount of read bytes");
 
@@ -340,8 +340,8 @@ int32_t crypt_readv_cbk(call_frame_t *frame,
 	    object_alg_should_pad(object))
 		gf_log(this->name, GF_LOG_DEBUG, "Bad offset in tail %d",
 		       conf->off_in_tail);
-	if (iovec_get_size(vec, count) != 0 &&
-	    in_same_lblock(conf->orig_offset + iovec_get_size(vec, count) - 1,
+	if (iov_length(vec, count) != 0 &&
+	    in_same_lblock(conf->orig_offset + iov_length(vec, count) - 1,
 			   local->cur_file_size - 1,
 			   object_alg_blkbits(object))) {
 		gf_log(this->name, GF_LOG_DEBUG, "Compound last cblock");
@@ -1083,7 +1083,7 @@ int crypt_writev(call_frame_t *frame,
 	struct gf_flock lock = {0, };
 #if DEBUG_CRYPT
 	gf_log ("crypt", GF_LOG_DEBUG, "writing %d bytes from offset %llu",
-		(int)iovec_get_size(vec, count), (long long)offset);
+		(int)iov_length(vec, count), (long long)offset);
 #endif
 	local = crypt_alloc_local(frame, this, GF_FOP_WRITE);
 	if (!local) {
@@ -1113,11 +1113,11 @@ int crypt_writev(call_frame_t *frame,
 		ret = EINVAL;
 		goto error;
 	}
-	if (iovec_get_size(vec, count) == 0)
+	if (iov_length(vec, count) == 0)
 		goto trivial;
 
 	ret = prepare_for_submit_data(frame, this, offset,
-				      iovec_get_size(vec, count),
+				      iov_length(vec, count),
 				      vec, count, 0 /* don't setup gup
 						       in tail: we don't
 						       know file size yet */);
@@ -1403,7 +1403,7 @@ static int32_t prune_write(call_frame_t *frame,
 	/*
 	 * At first, uptodate head block
 	 */
-	if (iovec_get_size(vec, count) < conf->off_in_head) {
+	if (iov_length(vec, count) < conf->off_in_head) {
 		gf_log(this->name, GF_LOG_WARNING,
 		       "Failed to uptodate head block for prune");
 		local->op_ret = -1;
@@ -3454,7 +3454,7 @@ static int32_t __crypt_readv_done(call_frame_t *frame,
 	gf_log("crypt", GF_LOG_DEBUG,
 	       "readv: ret_to_user: %d, iovec len: %d, ia_size: %llu",
 	       (int)(local->rw_count > 0 ? local->rw_count : local->op_ret),
-	       (int)(local->rw_count > 0 ? iovec_get_size(avec, local->data_conf.acount) : 0),
+	       (int)(local->rw_count > 0 ? iov_length(avec, local->data_conf.acount) : 0),
 	       (unsigned long long)local->buf.ia_size);
 
 	STACK_UNWIND_STRICT(readv,
diff --git a/xlators/encryption/crypt/src/crypt.h b/xlators/encryption/crypt/src/crypt.h
index c1bfe3fcd0c..6c014535f0a 100644
--- a/xlators/encryption/crypt/src/crypt.h
+++ b/xlators/encryption/crypt/src/crypt.h
@@ -465,7 +465,6 @@ void submit_full(call_frame_t *frame, xlator_t *this);
 /* crypt.c */
 
 end_writeback_handler_t dispatch_end_writeback(glusterfs_fop_t fop);
-static size_t iovec_get_size(struct iovec *vec, uint32_t count);
 void set_local_io_params_writev(call_frame_t *frame,
 				struct object_cipher_info *object,
 				struct rmw_atom *atom, off_t io_offset,
@@ -479,15 +478,6 @@ void rename_unwind(call_frame_t *frame);
 
 /* Inline functions */
 
-static inline size_t iovec_get_size(struct iovec *vec, uint32_t count)
-{
-	int i;
-	size_t size = 0;
-	for (i = 0; i < count; i++)
-		size += vec[i].iov_len;
-	return size;
-}
-
 static inline int32_t crypt_xlator_id(void)
 {
 	return CRYPT_XLATOR_ID;
diff --git a/xlators/encryption/crypt/src/data.c b/xlators/encryption/crypt/src/data.c
index 2f96ed2bab5..8b467bf2c60 100644
--- a/xlators/encryption/crypt/src/data.c
+++ b/xlators/encryption/crypt/src/data.c
@@ -281,8 +281,8 @@ static void check_iovecs(struct iovec *vec, int cnt,
 	char *s1, *s2;
 	uint32_t size, asize;
 
-	size = iovec_get_size(vec, cnt);
-	asize = iovec_get_size(avec, acnt) - off_in_head;
+	size = iov_length(vec, cnt);
+	asize = iov_length(avec, acnt) - off_in_head;
 	if (size != asize) {
 		gf_log("crypt", GF_LOG_DEBUG, "size %d is not eq asize %d",
 		       size, asize);
@@ -379,7 +379,7 @@ int32_t align_iov_by_atoms(xlator_t *this,
 	size_t to_process; /* number of vec's bytes to copy and(or) re-use */
 	int32_t off_in_head = conf->off_in_head;
 
-	to_process = iovec_get_size(vec, count);
+	to_process = iov_length(vec, count);
 
 	while (to_process > 0) {
 		if (off_in_head ||