Rename crc functions to private namespace

Apparently we overlap with some gtk (?) crc32() functions, causing
ours to be called and subsequently crashing since the arguments
aren't the same.

Move everything to a fio_ protected namespace.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/verify.c b/verify.c
index 0a504de..5621db2 100644
--- a/verify.c
+++ b/verify.c
@@ -389,14 +389,14 @@
 	void *p = io_u_verify_off(hdr, vc);
 	struct vhdr_sha512 *vh = hdr_priv(hdr);
 	uint8_t sha512[128];
-	struct sha512_ctx sha512_ctx = {
+	struct fio_sha512_ctx sha512_ctx = {
 		.buf = sha512,
 	};
 
 	dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	sha512_init(&sha512_ctx);
-	sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
+	fio_sha512_init(&sha512_ctx);
+	fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
 
 	if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
 		return 0;
@@ -414,14 +414,14 @@
 	void *p = io_u_verify_off(hdr, vc);
 	struct vhdr_sha256 *vh = hdr_priv(hdr);
 	uint8_t sha256[64];
-	struct sha256_ctx sha256_ctx = {
+	struct fio_sha256_ctx sha256_ctx = {
 		.buf = sha256,
 	};
 
 	dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	sha256_init(&sha256_ctx);
-	sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
+	fio_sha256_init(&sha256_ctx);
+	fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
 
 	if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
 		return 0;
@@ -439,14 +439,14 @@
 	void *p = io_u_verify_off(hdr, vc);
 	struct vhdr_sha1 *vh = hdr_priv(hdr);
 	uint32_t sha1[5];
-	struct sha1_ctx sha1_ctx = {
+	struct fio_sha1_ctx sha1_ctx = {
 		.H = sha1,
 	};
 
 	dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	sha1_init(&sha1_ctx);
-	sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
+	fio_sha1_init(&sha1_ctx);
+	fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
 
 	if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
 		return 0;
@@ -467,7 +467,7 @@
 
 	dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	c = crc7(p, hdr->len - hdr_size(hdr));
+	c = fio_crc7(p, hdr->len - hdr_size(hdr));
 
 	if (c == vh->crc7)
 		return 0;
@@ -488,7 +488,7 @@
 
 	dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	c = crc16(p, hdr->len - hdr_size(hdr));
+	c = fio_crc16(p, hdr->len - hdr_size(hdr));
 
 	if (c == vh->crc16)
 		return 0;
@@ -509,7 +509,7 @@
 
 	dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	c = crc64(p, hdr->len - hdr_size(hdr));
+	c = fio_crc64(p, hdr->len - hdr_size(hdr));
 
 	if (c == vh->crc64)
 		return 0;
@@ -530,7 +530,7 @@
 
 	dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	c = crc32(p, hdr->len - hdr_size(hdr));
+	c = fio_crc32(p, hdr->len - hdr_size(hdr));
 
 	if (c == vh->crc32)
 		return 0;
@@ -551,7 +551,7 @@
 
 	dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	c = crc32c(p, hdr->len - hdr_size(hdr));
+	c = fio_crc32c(p, hdr->len - hdr_size(hdr));
 
 	if (c == vh->crc32)
 		return 0;
@@ -569,14 +569,14 @@
 	void *p = io_u_verify_off(hdr, vc);
 	struct vhdr_md5 *vh = hdr_priv(hdr);
 	uint32_t hash[MD5_HASH_WORDS];
-	struct md5_ctx md5_ctx = {
+	struct fio_md5_ctx md5_ctx = {
 		.hash = hash,
 	};
 
 	dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
 
-	md5_init(&md5_ctx);
-	md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
+	fio_md5_init(&md5_ctx);
+	fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
 
 	if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
 		return 0;
@@ -654,7 +654,7 @@
 	if (hdr->magic != FIO_HDR_MAGIC)
 		return 0;
 
-	crc = crc32c(p, offsetof(struct verify_header, crc32));
+	crc = fio_crc32c(p, offsetof(struct verify_header, crc32));
 	if (crc == hdr->crc32)
 		return 1;
 
@@ -770,80 +770,80 @@
 static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_sha512 *vh = hdr_priv(hdr);
-	struct sha512_ctx sha512_ctx = {
+	struct fio_sha512_ctx sha512_ctx = {
 		.buf = vh->sha512,
 	};
 
-	sha512_init(&sha512_ctx);
-	sha512_update(&sha512_ctx, p, len);
+	fio_sha512_init(&sha512_ctx);
+	fio_sha512_update(&sha512_ctx, p, len);
 }
 
 static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_sha256 *vh = hdr_priv(hdr);
-	struct sha256_ctx sha256_ctx = {
+	struct fio_sha256_ctx sha256_ctx = {
 		.buf = vh->sha256,
 	};
 
-	sha256_init(&sha256_ctx);
-	sha256_update(&sha256_ctx, p, len);
+	fio_sha256_init(&sha256_ctx);
+	fio_sha256_update(&sha256_ctx, p, len);
 }
 
 static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_sha1 *vh = hdr_priv(hdr);
-	struct sha1_ctx sha1_ctx = {
+	struct fio_sha1_ctx sha1_ctx = {
 		.H = vh->sha1,
 	};
 
-	sha1_init(&sha1_ctx);
-	sha1_update(&sha1_ctx, p, len);
+	fio_sha1_init(&sha1_ctx);
+	fio_sha1_update(&sha1_ctx, p, len);
 }
 
 static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_crc7 *vh = hdr_priv(hdr);
 
-	vh->crc7 = crc7(p, len);
+	vh->crc7 = fio_crc7(p, len);
 }
 
 static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_crc16 *vh = hdr_priv(hdr);
 
-	vh->crc16 = crc16(p, len);
+	vh->crc16 = fio_crc16(p, len);
 }
 
 static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_crc32 *vh = hdr_priv(hdr);
 
-	vh->crc32 = crc32(p, len);
+	vh->crc32 = fio_crc32(p, len);
 }
 
 static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_crc32 *vh = hdr_priv(hdr);
 
-	vh->crc32 = crc32c(p, len);
+	vh->crc32 = fio_crc32c(p, len);
 }
 
 static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_crc64 *vh = hdr_priv(hdr);
 
-	vh->crc64 = crc64(p, len);
+	vh->crc64 = fio_crc64(p, len);
 }
 
 static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
 {
 	struct vhdr_md5 *vh = hdr_priv(hdr);
-	struct md5_ctx md5_ctx = {
+	struct fio_md5_ctx md5_ctx = {
 		.hash = (uint32_t *) vh->md5_digest,
 	};
 
-	md5_init(&md5_ctx);
-	md5_update(&md5_ctx, p, len);
+	fio_md5_init(&md5_ctx);
+	fio_md5_update(&md5_ctx, p, len);
 }
 
 static void populate_hdr(struct thread_data *td, struct io_u *io_u,
@@ -859,7 +859,7 @@
 	hdr->verify_type = td->o.verify;
 	hdr->len = header_len;
 	hdr->rand_seed = io_u->rand_seed;
-	hdr->crc32 = crc32c(p, offsetof(struct verify_header, crc32));
+	hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32));
 
 	data_len = header_len - hdr_size(hdr);