From: Chao Yu <yuchao0@huawei.com>
To: <jaegeuk@kernel.org>
Cc: linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [PATCH v3] f2fs_io: support defrag_file
Date: Tue, 6 Aug 2019 10:50:31 +0800 [thread overview]
Message-ID: <20190806025031.4444-1-yuchao0@huawei.com> (raw)
Support 'defrag_file' sub command to trigger file based defragment via
ioctl in f2fs.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
---
v3:
- remove -v option.
tools/f2fs_io/f2fs_io.c | 40 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index f087da4..6b43778 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -442,6 +442,45 @@ static void do_gc_urgent(int argc, char **argv, const struct cmd_desc *cmd)
}
}
+#define defrag_file_desc "do defragment on file"
+#define defrag_file_help \
+"f2fs_io defrag_file [start] [length] [file_path]\n\n" \
+" start : start offset of defragment region, unit: bytes\n" \
+" length : bytes number of defragment region\n" \
+
+static void do_defrag_file(int argc, char **argv, const struct cmd_desc *cmd)
+{
+ struct f2fs_defragment df;
+ u64 len;
+ int ret, fd;
+
+ if (argc != 4) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ df.start = atoll(argv[1]);
+ df.len = len = atoll(argv[2]);
+
+ fd = open(argv[3], O_RDWR);
+ if (fd == -1) {
+ fputs("Open failed\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ ret = ioctl(fd, F2FS_IOC_DEFRAGMENT, &df);
+ if (ret < 0) {
+ perror("F2FS_IOC_DEFRAGMENT");
+ exit(1);
+ }
+ printf("defrag %s in region[%llu, %llu]\n", argv[3],
+ df.start, df.start + len);
+ exit(0);
+}
+
+
#define CMD_HIDDEN 0x0001
#define CMD(name) { #name, do_##name, name##_desc, name##_help, 0 }
#define _CMD(name) { #name, do_##name, NULL, NULL, CMD_HIDDEN }
@@ -456,6 +495,7 @@ const struct cmd_desc cmd_list[] = {
CMD(read),
CMD(fiemap),
CMD(gc_urgent),
+ CMD(defrag_file),
{ NULL, NULL, NULL, NULL, 0 }
};
--
2.18.0.rc1
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
reply other threads:[~2019-08-06 2:50 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190806025031.4444-1-yuchao0@huawei.com \
--to=yuchao0@huawei.com \
--cc=jaegeuk@kernel.org \
--cc=linux-f2fs-devel@lists.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).