f2fs_io: add get/setflags

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>

diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index a5a9836..add40c4 100644 (file)
--- 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 (file)
--- 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;