@@ -181,6 +181,9 @@ Trigger gc to move data blocks from specified address range
.TP
\fBget_advise\fR \fI[file]\fR
Get i_advise value and info in file
+.TP
+\fBioprio\fR \fI[hint] [file]\fR
+Set ioprio to the file. The ioprio can be ioprio_write.
.SH AUTHOR
This version of
.B f2fs_io
@@ -498,6 +498,40 @@ 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] {size}\n\n" \
@@ -1966,6 +2000,7 @@ const struct cmd_desc cmd_list[] = {
CMD(removexattr),
CMD(lseek),
CMD(get_advise),
+ CMD(ioprio),
{ NULL, NULL, NULL, NULL, 0 }
};
@@ -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
This adds a command to call ioctl(F2FS_IOC_IO_PRIO). Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- man/f2fs_io.8 | 3 +++ tools/f2fs_io/f2fs_io.c | 35 +++++++++++++++++++++++++++++++++++ tools/f2fs_io/f2fs_io.h | 7 +++++++ 3 files changed, 45 insertions(+)