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From: kusumi.tomohiro@gmail.com
To: axboe@kernel.dk, fio@vger.kernel.org
Cc: Tomohiro Kusumi <tkusumi@tuxera.com>
Subject: [PATCH 5/8] Make lib/memalign.c a stand-alone library
Date: Tue,  4 Apr 2017 23:22:15 +0300	[thread overview]
Message-ID: <20170404202218.52260-5-tkusumi@tuxera.com> (raw)
In-Reply-To: <20170404202218.52260-1-tkusumi@tuxera.com>

From: Tomohiro Kusumi <tkusumi@tuxera.com>

lib/memalign.c not having dependency on fio.h enables it to be
a stand-alone library, which is useful for debugging purpose.
In fact, most of the files under lib/ directory do things this way.

(For lib/memalign.c, it was actually myself who introduced this
dependency as a part of changes made by 248c9436, so this commit
is partially reverting that)

--
 # cat ./test3.c
 #include <stdio.h>
 #include "lib/memalign.h"
 int main(void) {
         char *p = fio_memalign(4096, 1000000);
         printf("%p\n", p);
         fio_memfree(p, 1000000);
         return 0;
 }
 # gcc -Wall -g ./test3.c ./lib/memalign.c
 # ./a.out
 0x7fbb7bbbc000

Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com>
---
 lib/memalign.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/memalign.c b/lib/memalign.c
index 1d1ba9b..137cc8e 100644
--- a/lib/memalign.c
+++ b/lib/memalign.c
@@ -3,7 +3,9 @@
 #include <inttypes.h>
 
 #include "memalign.h"
-#include "../fio.h"
+
+#define PTR_ALIGN(ptr, mask)   \
+	(char *)((uintptr_t)((ptr) + (mask)) & ~(mask))
 
 struct align_footer {
 	unsigned int offset;
-- 
2.9.3



  parent reply	other threads:[~2017-04-04 20:22 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-04 20:22 [PATCH 1/8] Don't silently terminate td when no I/O performed due to error kusumi.tomohiro
2017-04-04 20:22 ` [PATCH 2/8] dump_td_info() doesn't really need to be a function kusumi.tomohiro
2017-04-04 20:22 ` [PATCH 3/8] Add assert(0) to DDIR_DATASYNC sync path if fdatasync(2) is unsupported kusumi.tomohiro
2017-04-08 17:02   ` Jens Axboe
2017-04-04 20:22 ` [PATCH 4/8] Make lib/prio_tree.c a stand-alone library kusumi.tomohiro
2017-04-04 20:22 ` kusumi.tomohiro [this message]
2017-04-04 20:22 ` [PATCH 6/8] Make lib/num2str.c a stand-alone library by adding lib/num2str.h kusumi.tomohiro
2017-04-04 20:22 ` [PATCH 7/8] Fix num2str() output when maxlen <= strlen(tmp) kusumi.tomohiro
2017-04-04 20:22 ` [PATCH 8/8] Fix num2str() output when modulo != -1U kusumi.tomohiro
2017-04-04 20:46   ` Elliott, Robert (Persistent Memory)
2017-04-08 17:05 ` [PATCH 1/8] Don't silently terminate td when no I/O performed due to error Jens Axboe

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