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f2fs_io: add dsync option for write

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This adds a write option having O_DIRECT | O_DSYNC.

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2022-05-28 01:32:16 -07:00
parent a7b8b468ad
commit 9d0cb9e712
2 changed files with 7 additions and 1 deletions
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3
man/f2fs_io.8
View File

@ -76,6 +76,9 @@ buffered I/O
.TP
.B dio
direct I/O
.TP
.B dsync
direct I/O with O_DSYNC
.RE
.TP
\fBread\fR \fI[chunk_size in 4kb] [offset in chunk_size] [count] [IO] [print_nbytes] [file_path]\fR

5
tools/f2fs_io/f2fs_io.c
View File

@ -508,7 +508,8 @@ static void do_erase(int argc, char **argv, const struct cmd_desc *cmd)
" rand : random numbers\n" \
"IO can be\n" \
" buffered : buffered IO\n" \
" dio : direct IO\n" \
" dio : O_DIRECT\n" \
" dsync : O_DIRECT | O_DSYNC\n" \
" osync : O_SYNC\n" \
" atomic_commit : atomic write & commit\n" \
" atomic_abort : atomic write & abort\n" \
@ -552,6 +553,8 @@ static void do_write(int argc, char **argv, const struct cmd_desc *cmd)
if (!strcmp(argv[5], "dio"))
flags |= O_DIRECT;
else if (!strcmp(argv[5], "dsync"))
flags |= O_DIRECT | O_DSYNC;
else if (!strcmp(argv[5], "osync"))
flags |= O_SYNC;
else if (!strcmp(argv[5], "atomic_commit"))