Adds to support below three commands to operate reserved blocks
in compressed inode.
- get_cblocks
- release_cblocks
- reserve_cblocks
Signed-off-by: Chao Yu <yuch...@huawei.com>
---
tools/f2fs_io/f2fs_io.c | 78 +++++++++++++++++++++++++++++++++++++++++
tools/f2fs_io/f2fs_io.h | 6 ++++
2 files changed, 84 insertions(+)
diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index 68e27ed..c1edef1 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -697,6 +697,81 @@ static void do_copy(int argc, char **argv, const struct
cmd_desc *cmd)
close(dst_fd);
}
+#define get_cblocks_desc "get number of reserved blocks on compress inode"
+#define get_cblocks_help "f2fs_io get_cblocks [file]\n\n"
+
+static void do_get_cblocks(int argc, char **argv, const struct cmd_desc *cmd)
+{
+ unsigned long long blkcnt;
+ int ret, fd;
+
+ if (argc != 2) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ fd = xopen(argv[1], O_RDONLY, 0);
+
+ ret = ioctl(fd, F2FS_IOC_GET_COMPRESS_BLOCKS, &blkcnt);
+ if (ret < 0)
+ die_errno("F2FS_IOC_GET_COMPRESS_BLOCKS failed");
+
+ printf("%llu\n", blkcnt);
+
+ exit(0);
+}
+
+#define release_cblocks_desc "release reserved blocks on compress inode"
+#define release_cblocks_help "f2fs_io release_cblocks [file]\n\n"
+
+static void do_release_cblocks(int argc, char **argv, const struct cmd_desc
*cmd)
+{
+ unsigned long long blkcnt;
+ int ret, fd;
+
+ if (argc != 2) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ fd = xopen(argv[1], O_RDONLY, 0);
+
+ ret = ioctl(fd, F2FS_IOC_RELEASE_COMPRESS_BLOCKS, &blkcnt);
+ if (ret < 0)
+ die_errno("F2FS_IOC_RELEASE_COMPRESS_BLOCKS failed");
+
+ printf("%llu\n", blkcnt);
+
+ exit(0);
+}
+
+#define reserve_cblocks_desc "reserve blocks on compress inode"
+#define reserve_cblocks_help "f2fs_io reserve_cblocks [file]\n\n"
+
+static void do_reserve_cblocks(int argc, char **argv, const struct cmd_desc
*cmd)
+{
+ unsigned long long blkcnt;
+ int ret, fd;
+
+ if (argc != 2) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ fd = xopen(argv[1], O_RDONLY, 0);
+
+ ret = ioctl(fd, F2FS_IOC_RESERVE_COMPRESS_BLOCKS, &blkcnt);
+ if (ret < 0)
+ die_errno("F2FS_IOC_RESERVE_COMPRESS_BLOCKS failed");
+
+ printf("%llu\n", blkcnt);
+
+ exit(0);
+}
+
#define CMD_HIDDEN 0x0001
#define CMD(name) { #name, do_##name, name##_desc, name##_help, 0 }
@@ -717,6 +792,9 @@ const struct cmd_desc cmd_list[] = {
CMD(gc_urgent),
CMD(defrag_file),
CMD(copy),
+ CMD(get_cblocks),
+ CMD(release_cblocks),
+ CMD(reserve_cblocks),
{ NULL, NULL, NULL, NULL, 0 }
};
diff --git a/tools/f2fs_io/f2fs_io.h b/tools/f2fs_io/f2fs_io.h
index 3b2892c..c6ea7ff 100644
--- a/tools/f2fs_io/f2fs_io.h
+++ b/tools/f2fs_io/f2fs_io.h
@@ -68,6 +68,12 @@ typedef u32 __be32;
#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
+#define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
+#define F2FS_IOC_GET_COMPRESS_BLOCKS _IOR(F2FS_IOCTL_MAGIC, 17, __u64)
+#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS \
+ _IOR(F2FS_IOCTL_MAGIC, 18, __u64)
+#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS \
+ _IOR(F2FS_IOCTL_MAGIC, 19, __u64)
#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
--
2.18.0.rc1
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