[f2fs-dev] [PATCH 1/2] f2fs_io: support fadvise dontneed, random, and noreuse

[Jaegeuk Kim via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net>]

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 man/f2fs_io.8           | 3 ++-
 tools/f2fs_io/f2fs_io.c | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/man/f2fs_io.8 b/man/f2fs_io.8
index 97a893b26114..5def508e494f 100644
--- a/man/f2fs_io.8
+++ b/man/f2fs_io.8
@@ -54,7 +54,8 @@ going down with fsck mark
 Get or set the pinning status on a file.
 .TP
 \fBfadvise\fR \fI[advice] [offset] [length] [file]\fR
-Pass an advice to the specified file. The advice can be willneed and sequential.
+Pass an advice to the specified file. The advice can be willneed, dontneed,
+noreuse, sequential, random.
 .TP
 \fBfallocate\fR \fI[-c] [-i] [-p] [-z] [keep_size] [offset] [length] [file]\fR
 Request that space be allocated on a file.  The
diff --git a/tools/f2fs_io/f2fs_io.c b/tools/f2fs_io/f2fs_io.c
index 92345d2dd2d2..05126c8b44a6 100644
--- a/tools/f2fs_io/f2fs_io.c
+++ b/tools/f2fs_io/f2fs_io.c
@@ -454,7 +454,10 @@ static void do_shutdown(int argc, char **argv, const struct cmd_desc *cmd)
 "fadvice given the file\n"					\
 "advice can be\n"						\
 " willneed\n"							\
+" dontneed\n"							\
+" noreuse\n"							\
 " sequential\n"							\
+" random\n"							\
 
 static void do_fadvise(int argc, char **argv, const struct cmd_desc *cmd)
 {
@@ -471,8 +474,14 @@ static void do_fadvise(int argc, char **argv, const struct cmd_desc *cmd)
 
 	if (!strcmp(argv[1], "willneed")) {
 		advice = POSIX_FADV_WILLNEED;
+	} else if (!strcmp(argv[1], "dontneed")) {
+		advice = POSIX_FADV_DONTNEED;
+	} else if (!strcmp(argv[1], "noreuse")) {
+		advice = POSIX_FADV_NOREUSE;
 	} else if (!strcmp(argv[1], "sequential")) {
 		advice = POSIX_FADV_SEQUENTIAL;
+	} else if (!strcmp(argv[1], "random")) {
+		advice = POSIX_FADV_RANDOM;
 	} else {
 		fputs("Wrong advice\n\n", stderr);
 		fputs(cmd->cmd_help, stderr);
-- 
2.48.1.711.g2feabab25a-goog



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