This adds a command to call ioctl(F2FS_IOC_IO_PRIO).
Signed-off-by: Jaegeuk Kim <[email protected]>
---
tools/f2fs_io/f2fs_io.c | 35 +++++++++++++++++++++++++++++++++++
tools/f2fs_io/f2fs_io.h | 7 +++++++
2 files changed, 42 insertions(+)
diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index e7ad22e08ba5..c4a0a6c4cf85 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -485,6 +485,40 @@ static void do_fadvise(int argc, char **argv, const struct
cmd_desc *cmd)
exit(0);
}
+#define ioprio_desc "ioprio"
+#define ioprio_help \
+"f2fs_io ioprio [hint] [file]\n\n" \
+"ioprio given the file\n" \
+"hint can be\n" \
+" ioprio_write\n" \
+
+static void do_ioprio(int argc, char **argv, const struct cmd_desc *cmd)
+{
+ int fd, hint;
+
+ if (argc != 3) {
+ fputs("Excess arguments\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ fd = xopen(argv[2], O_RDWR, 0);
+
+ if (!strcmp(argv[1], "ioprio_write")) {
+ hint = F2FS_IOPRIO_WRITE;
+ } else {
+ fputs("Not supported hint\n\n", stderr);
+ fputs(cmd->cmd_help, stderr);
+ exit(1);
+ }
+
+ if (ioctl(fd, F2FS_IOC_IO_PRIO, &hint) != 0)
+ die_errno("ioprio failed");
+
+ printf("ioprio_hint %d to a file: %s\n", hint, argv[2]);
+ exit(0);
+}
+
#define pinfile_desc "pin file control"
#define pinfile_help \
"f2fs_io pinfile [get|set|unset] [file]\n\n" \
@@ -1941,6 +1975,7 @@ const struct cmd_desc cmd_list[] = {
CMD(removexattr),
CMD(lseek),
CMD(get_advise),
+ CMD(ioprio),
{ NULL, NULL, NULL, NULL, 0 }
};
diff --git a/tools/f2fs_io/f2fs_io.h b/tools/f2fs_io/f2fs_io.h
index 14c9dc1fda46..f2d0a0827ca5 100644
--- a/tools/f2fs_io/f2fs_io.h
+++ b/tools/f2fs_io/f2fs_io.h
@@ -94,6 +94,8 @@ typedef u32 __be32;
#define F2FS_IOC_DECOMPRESS_FILE _IO(F2FS_IOCTL_MAGIC, 23)
#define F2FS_IOC_COMPRESS_FILE _IO(F2FS_IOCTL_MAGIC, 24)
#define F2FS_IOC_START_ATOMIC_REPLACE _IO(F2FS_IOCTL_MAGIC, 25)
+#define F2FS_IOC_GET_DEV_ALIAS_FILE _IOR(F2FS_IOCTL_MAGIC, 26, __u32)
+#define F2FS_IOC_IO_PRIO _IOW(F2FS_IOCTL_MAGIC, 28, __u32)
#ifndef FSCRYPT_POLICY_V1
#define FSCRYPT_POLICY_V1 0
@@ -193,6 +195,11 @@ struct fsverity_enable_arg {
#define FADVISE_VERITY_BIT 0x40
#define FADVISE_TRUNC_BIT 0x80
+/* used for F2FS_IOC_IO_PRIO */
+enum {
+ F2FS_IOPRIO_WRITE = 1, /* high write priority */
+};
+
#ifndef FS_IMMUTABLE_FL
#define FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
#endif
--
2.48.1.601.g30ceb7b040-goog
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