fsync: new applet by Pekka Pessi (Pekka.Pessi AT nokia.com)

function                                             old     new   delta
fsync_main                                             -     128    +128
fdatasync                                              -      39     +39
packed_usage                                       26596   26622     +26
applet_names                                        2098    2104      +6
applet_main                                         1240    1244      +4
applet_nameofs                                       620     622      +2
applet_install_loc                                   155     156      +1
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 5/0 up/down: 206/0)             Total: 206 bytes

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 9 insertions, 1 deletions

diff --git a/include/applets.h b/include/applets.h
index 5fbb3461e..929616016 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -165,6 +165,7 @@ IF_FSCK(APPLET(fsck, _BB_DIR_SBIN, _BB_SUID_NEVER))
 //IF_E2FSCK(APPLET_ODDNAME(fsck.ext2, e2fsck, _BB_DIR_SBIN, _BB_SUID_NEVER, fsck_ext2))
 //IF_E2FSCK(APPLET_ODDNAME(fsck.ext3, e2fsck, _BB_DIR_SBIN, _BB_SUID_NEVER, fsck_ext3))
 IF_FSCK_MINIX(APPLET_ODDNAME(fsck.minix, fsck_minix, _BB_DIR_SBIN, _BB_SUID_NEVER, fsck_minix))
+IF_FSYNC(APPLET_NOFORK(fsync, fsync, _BB_DIR_BIN, _BB_SUID_NEVER, fsync))
 IF_FTPD(APPLET(ftpd, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
 IF_FTPGET(APPLET_ODDNAME(ftpget, ftpgetput, _BB_DIR_USR_BIN, _BB_SUID_NEVER, ftpget))
 IF_FTPPUT(APPLET_ODDNAME(ftpput, ftpgetput, _BB_DIR_USR_BIN, _BB_SUID_NEVER, ftpput))
diff --git a/include/usage.h b/include/usage.h
index 6fb31e260..0f6378e06 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -4209,7 +4209,14 @@
 #define sync_trivial_usage \
        ""
 #define sync_full_usage "\n\n" \
-       "Write all buffered filesystem blocks to disk"
+       "Write all buffered blocks to disk"
+
+#define fsync_trivial_usage \
+       "[OPTION]... FILE..."
+#define fsync_full_usage \
+       "Write files' buffered blocks to disk\n" \
+     "\nOptions:" \
+     "\n        -d      Avoid syncing metadata"
 
 #define sysctl_trivial_usage \
        "[OPTIONS]... [VALUE]..."