This patch from Sami Farin lets you specify --fsync if you want fsync()
to be called on every file we write.
---- orig/options.c 2005-05-19 08:52:42
-+++ options.c 2005-01-28 19:30:47
-@@ -38,6 +38,7 @@ int make_backups = 0;
- **/
- int whole_file = -1;
-
-+int do_fsync = 0;
- int archive_mode = 0;
+To use this patch, run these commands for a successful build:
+
+ patch -p1 <patches/fsync.diff
+ ./configure (optional if already run)
+ make
+
+diff --git a/options.c b/options.c
+--- a/options.c
++++ b/options.c
+@@ -48,6 +48,7 @@ int append_mode = 0;
int keep_dirlinks = 0;
+ int copy_dirlinks = 0;
int copy_links = 0;
-@@ -311,6 +312,7 @@ void usage(enum logcode F)
- rprintf(F," --partial keep partially transferred files\n");
++int do_fsync = 0;
+ int preserve_links = 0;
+ int preserve_hard_links = 0;
+ int preserve_acls = 0;
+@@ -383,6 +384,7 @@ void usage(enum logcode F)
rprintf(F," --partial-dir=DIR put a partially transferred file into DIR\n");
rprintf(F," --delay-updates put all updated files into place at transfer's end\n");
+ rprintf(F," -m, --prune-empty-dirs prune empty directory chains from the file-list\n");
+ rprintf(F," --fsync fsync every written file\n");
rprintf(F," --numeric-ids don't map uid/gid values by user/group name\n");
- rprintf(F," --timeout=TIME set I/O timeout in seconds\n");
- rprintf(F," -I, --ignore-times don't skip files that match in size and mod-time\n");
-@@ -395,6 +397,7 @@ static struct poptOption long_options[]
- {"safe-links", 0, POPT_ARG_NONE, &safe_symlinks, 0, 0, 0 },
- {"help", 'h', POPT_ARG_NONE, 0, 'h', 0, 0 },
- {"backup", 'b', POPT_ARG_NONE, &make_backups, 0, 0, 0 },
+ rprintf(F," --timeout=SECONDS set I/O timeout in seconds\n");
+ rprintf(F," --contimeout=SECONDS set daemon connection timeout in seconds\n");
+@@ -626,6 +628,7 @@ static struct poptOption long_options[] = {
+ {"no-timeout", 0, POPT_ARG_VAL, &io_timeout, 0, 0, 0 },
+ {"contimeout", 0, POPT_ARG_INT, &connect_timeout, 0, 0, 0 },
+ {"no-contimeout", 0, POPT_ARG_VAL, &connect_timeout, 0, 0, 0 },
+ {"fsync", 0, POPT_ARG_NONE, &do_fsync, 0, 0, 0 },
- {"dry-run", 'n', POPT_ARG_NONE, &dry_run, 0, 0, 0 },
- {"sparse", 'S', POPT_ARG_NONE, &sparse_files, 0, 0, 0 },
- {"cvs-exclude", 'C', POPT_ARG_NONE, &cvs_exclude, 0, 0, 0 },
-@@ -1446,6 +1449,9 @@ void server_options(char **args,int *arg
- args[ac++] = tmpdir;
- }
+ {"rsh", 'e', POPT_ARG_STRING, &shell_cmd, 0, 0, 0 },
+ {"rsync-path", 0, POPT_ARG_STRING, &rsync_path, 0, 0, 0 },
+ {"temp-dir", 'T', POPT_ARG_STRING, &tmpdir, 0, 0, 0 },
+@@ -2003,6 +2006,9 @@ void server_options(char **args, int *argc_p)
+ args[ac++] = tmpdir;
+ }
-+ if (do_fsync && am_sender)
-+ args[ac++] = "--fsync";
++ if (do_fsync)
++ args[ac++] = "--fsync";
+
- if (basis_dir[0] && am_sender) {
- /* the server only needs this option if it is not the sender,
- * and it may be an older version that doesn't know this
---- orig/receiver.c 2005-04-14 01:53:12
-+++ receiver.c 2005-02-20 00:17:37
-@@ -38,6 +38,7 @@ extern int keep_dirlinks;
+ if (basis_dir[0]) {
+ /* the server only needs this option if it is not the sender,
+ * and it may be an older version that doesn't know this
+diff --git a/receiver.c b/receiver.c
+--- a/receiver.c
++++ b/receiver.c
+@@ -39,6 +39,7 @@ extern int relative_paths;
extern int preserve_hard_links;
extern int preserve_perms;
- extern int io_error;
+ extern int preserve_xattrs;
+extern int do_fsync;
extern int basis_dir_cnt;
extern int make_backups;
extern int cleanup_got_literal;
-@@ -291,6 +292,12 @@ static int receive_data(int f_in, char *
+@@ -298,6 +299,12 @@ static int receive_data(int f_in, char *fname_r, int fd_r, OFF_T size_r,
exit_cleanup(RERR_FILEIO);
}
+ exit_cleanup(RERR_FILEIO);
+ }
+
- sum_end(file_sum1);
+ sum_len = sum_end(file_sum1);
if (mapbuf)
---- orig/t_stub.c 2005-01-25 10:39:14
-+++ t_stub.c 2004-10-09 04:03:09
-@@ -28,6 +28,7 @@
+diff --git a/t_stub.c b/t_stub.c
+--- a/t_stub.c
++++ b/t_stub.c
+@@ -21,6 +21,7 @@
+
+ #include "rsync.h"
++int do_fsync = 0;
int modify_window = 0;
int module_id = -1;
-+int do_fsync;
- char *partial_dir;
- struct filter_list_struct server_filter_list;
-
---- orig/util.c 2005-05-03 16:47:33
-+++ util.c 2004-07-03 20:18:13
-@@ -33,6 +33,7 @@ extern int module_id;
- extern int modify_window;
- extern char *partial_dir;
- extern struct filter_list_struct server_filter_list;
+ int relative_paths = 0;
+diff --git a/util.c b/util.c
+--- a/util.c
++++ b/util.c
+@@ -26,6 +26,7 @@
+ extern int verbose;
+ extern int dry_run;
+ extern int module_id;
+extern int do_fsync;
-
- int sanitize_paths = 0;
-
-@@ -299,6 +300,12 @@ int copy_file(char *source, char *dest,
- return -1;
+ extern int modify_window;
+ extern int relative_paths;
+ extern int human_readable;
+@@ -334,6 +335,13 @@ int copy_file(const char *source, const char *dest, int ofd,
+ full_fname(source));
}
+ if (do_fsync && fsync(ofd) < 0) {
+ rsyserr(FERROR, errno, "fsync failed on %s",
+ full_fname(dest));
++ close(ofd);
+ return -1;
+ }
+
- return 0;
- }
-
+ if (close(ofd) < 0) {
+ int save_errno = errno;
+ rsyserr(FERROR_XFER, errno, "close failed on %s",