This adds a command to call ioctl(F2FS_IOC_IO_PRIO). Signed-off-by: Jaegeuk Kim <jaeg...@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(+)
diff --git a/man/f2fs_io.8 b/man/f2fs_io.8 index 5def508e494f..b71965cf447a 100644 --- a/man/f2fs_io.8 +++ b/man/f2fs_io.8 @@ -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 diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c index 05126c8b44a6..155d44f147ad 100644 --- a/tools/f2fs_io/f2fs_io.c +++ b/tools/f2fs_io/f2fs_io.c @@ -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 } }; diff --git a/tools/f2fs_io/f2fs_io.h b/tools/f2fs_io/f2fs_io.h index c32def72fe45..22102884faab 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 -- 2.48.1.711.g2feabab25a-goog _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel