Re: [f2fs-dev] [PATCH v2] f2fs_io: add get/setflags

[Jaegeuk Kim <jaegeuk@kernel.org>]

Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
---
- Add + flags for now

 tools/f2fs_io/f2fs_io.c | 98 +++++++++++++++++++++++++++++++++++++++++
 tools/f2fs_io/f2fs_io.h | 14 ++++++
 2 files changed, 112 insertions(+)

diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index a5a9836..add40c4 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -45,6 +45,102 @@ struct cmd_desc {
 	int cmd_flags;
 };
 
+#define getflags_desc "getflags ioctl"
+#define getflags_help						\
+"f2fs_io getflags [file]\n\n"					\
+"get a flag given the file\n"					\
+"flag can show \n"						\
+"  casefold\n"							\
+"  compression\n"						\
+"  nocompression\n"
+
+static void do_getflags(int argc, char **argv, const struct cmd_desc *cmd)
+{
+	long flag;
+	int ret, fd;
+	int exist = 0;
+
+	if (argc != 2) {
+		fputs("Excess arguments\n\n", stderr);
+		fputs(cmd->cmd_help, stderr);
+		exit(1);
+	}
+
+	fd = open(argv[1], O_RDONLY);
+	if (fd == -1) {
+		fputs("Open failed\n\n", stderr);
+		fputs(cmd->cmd_help, stderr);
+		exit(1);
+	}
+
+	ret = ioctl(fd, F2FS_IOC_GETFLAGS, &flag);
+	printf("get a flag on %s ret=%d, flags=", argv[1], ret);
+	if (flag & FS_CASEFOLD_FL) {
+		printf("casefold");
+		exist = 1;
+	}
+	if (flag & FS_COMPR_FL) {
+		if (exist)
+			printf(",");
+		printf("compression");
+		exist = 1;
+	}
+	if (flag & FS_NOCOMP_FL) {
+		if (exist)
+			printf(",");
+		printf("nocompression");
+		exist = 1;
+	}
+	if (!exist)
+		printf("none");
+	printf("\n");
+	exit(0);
+}
+
+#define setflags_desc "setflags ioctl"
+#define setflags_help						\
+"f2fs_io setflags [flag] [file]\n\n"				\
+"set a flag given the file\n"					\
+"flag can be\n"							\
+"  casefold\n"							\
+"  compression\n"						\
+"  nocompression\n"
+
+static void do_setflags(int argc, char **argv, const struct cmd_desc *cmd)
+{
+	long flag;
+	int ret, fd;
+
+	if (argc != 3) {
+		fputs("Excess arguments\n\n", stderr);
+		fputs(cmd->cmd_help, stderr);
+		exit(1);
+	}
+
+	fd = open(argv[2], O_RDONLY);
+	if (fd == -1) {
+		fputs("Open failed\n\n", stderr);
+		fputs(cmd->cmd_help, stderr);
+		exit(1);
+	}
+
+	ret = ioctl(fd, F2FS_IOC_GETFLAGS, &flag);
+	printf("get a flag on %s ret=%d, flags=%lx\n", argv[1], ret, flag);
+	if (ret)
+		exit(1);
+
+	if (!strcmp(argv[1], "casefold"))
+		flag |= FS_CASEFOLD_FL;
+	else if (!strcmp(argv[1], "compression"))
+		flag |= FS_COMPR_FL;
+	else if (!strcmp(argv[1], "nocompression"))
+		flag |= FS_NOCOMP_FL;
+
+	ret = ioctl(fd, F2FS_IOC_SETFLAGS, &flag);
+	printf("set a flag on %s ret=%d, flags=%s\n", argv[2], ret, argv[1]);
+	exit(0);
+}
+
 #define shutdown_desc "shutdown filesystem"
 #define shutdown_help					\
 "f2fs_io shutdown [level] [dir]\n\n"			\
@@ -488,6 +584,8 @@ static void do_defrag_file(int argc, char **argv, const struct cmd_desc *cmd)
 static void do_help(int argc, char **argv, const struct cmd_desc *cmd);
 const struct cmd_desc cmd_list[] = {
 	_CMD(help),
+	CMD(getflags),
+	CMD(setflags),
 	CMD(shutdown),
 	CMD(pinfile),
 	CMD(fallocate),
diff --git a/tools/f2fs_io/f2fs_io.h b/tools/f2fs_io/f2fs_io.h
index 95fd5be..5768c1b 100644
--- a/tools/f2fs_io/f2fs_io.h
+++ b/tools/f2fs_io/f2fs_io.h
@@ -41,9 +41,13 @@ typedef u32	__be32;
 #ifndef FS_IOC_GETFLAGS
 #define FS_IOC_GETFLAGS			_IOR('f', 1, long)
 #endif
+#ifndef FS_IOC_SETFLAGS
+#define FS_IOC_SETFLAGS			_IOW('f', 2, long)
+#endif
 
 #define F2FS_IOCTL_MAGIC		0xf5
 #define F2FS_IOC_GETFLAGS		FS_IOC_GETFLAGS
+#define F2FS_IOC_SETFLAGS		FS_IOC_SETFLAGS
 
 #define F2FS_IOC_START_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 1)
 #define F2FS_IOC_COMMIT_ATOMIC_WRITE	_IO(F2FS_IOCTL_MAGIC, 2)
@@ -98,6 +102,16 @@ typedef u32	__be32;
 #define F2FS_IOC_FSGETXATTR		FS_IOC_FSGETXATTR
 #define F2FS_IOC_FSSETXATTR		FS_IOC_FSSETXATTR
 
+#ifndef FS_NOCOMP_FL
+#define FS_NOCOMP_FL			0x00000400 /* Don't compress */
+#endif
+#ifndef FS_COMPR_FL
+#define FS_COMPR_FL			0x00000004 /* Compress file */
+#endif
+#ifndef FS_CASEFOLD_FL
+#define FS_CASEFOLD_FL			0x40000000 /* Folder is case insensitive */
+#endif
+
 struct f2fs_gc_range {
 	u32 sync;
 	u64 start;
-- 
2.19.0.605.g01d371f741-goog



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