This patch from Sami Farin lets you specify --fsync if you want fsync()
to be called on every file we write.
---- orig/options.c 2004-10-14 17:11:40
-+++ options.c 2004-07-03 20:18:13
-@@ -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
+
+--- old/options.c
++++ new/options.c
+@@ -45,6 +45,7 @@ int append_mode = 0;
int keep_dirlinks = 0;
+ int copy_dirlinks = 0;
int copy_links = 0;
-@@ -240,6 +241,7 @@ void usage(enum logcode F)
- rprintf(F," -b, --backup make backups (see --suffix & --backup-dir)\n");
- rprintf(F," --backup-dir make backups into this directory\n");
- rprintf(F," --suffix=SUFFIX backup suffix (default %s w/o --backup-dir)\n",BACKUP_SUFFIX);
++int do_fsync = 0;
+ int preserve_links = 0;
+ int preserve_hard_links = 0;
+ int preserve_acls = 0;
+@@ -375,6 +376,7 @@ 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," -u, --update update only (don't overwrite newer files)\n");
- rprintf(F," --inplace update destination files inplace (SEE MAN PAGE)\n");
- rprintf(F," -K, --keep-dirlinks treat symlinked dir on receiver as dir\n");
-@@ -339,6 +341,7 @@ 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," --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");
+@@ -600,6 +602,7 @@ static struct poptOption long_options[]
+ {"no-numeric-ids", 0, POPT_ARG_VAL, &numeric_ids, 0, 0, 0 },
+ {"timeout", 0, POPT_ARG_INT, &io_timeout, 0, 0, 0 },
+ {"no-timeout", 0, POPT_ARG_VAL, &io_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 },
-@@ -1135,6 +1138,9 @@ 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 },
+@@ -1934,6 +1937,9 @@ void server_options(char **args, int *ar
+ args[ac++] = tmpdir;
+ }
-+ if (do_fsync && am_sender)
-+ args[ac++] = "--fsync";
++ if (do_fsync)
++ args[ac++] = "--fsync";
+
- if (compare_dest && 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 2004-09-21 09:40:27
-+++ receiver.c 2004-07-16 20:13:31
-@@ -36,6 +36,7 @@ extern int preserve_hard_links;
+ 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
+--- old/receiver.c
++++ new/receiver.c
+@@ -39,6 +39,7 @@ extern int relative_paths;
+ extern int preserve_hard_links;
extern int preserve_perms;
- extern int cvs_exclude;
- extern int io_error;
+ extern int preserve_xattrs;
+extern int do_fsync;
- extern char *tmpdir;
- extern char *partial_dir;
- extern char *compare_dest;
-@@ -305,6 +306,12 @@ static int receive_data(int f_in, char *
+ extern int basis_dir_cnt;
+ extern int make_backups;
+ extern int cleanup_got_literal;
+@@ -261,6 +262,12 @@ static int receive_data(int f_in, char *
exit_cleanup(RERR_FILEIO);
}
+ exit_cleanup(RERR_FILEIO);
+ }
+
- sum_end(file_sum1);
+ sum_len = sum_end(file_sum1);
if (mapbuf)
---- orig/t_stub.c 2004-07-29 16:08:04
-+++ t_stub.c 2004-10-09 04:03:09
-@@ -28,6 +28,7 @@
+--- old/t_stub.c
++++ new/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 exclude_list_struct server_exclude_list;
-
---- orig/util.c 2004-09-07 21:45:30
-+++ 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 exclude_list_struct server_exclude_list;
+ int relative_paths = 0;
+--- old/util.c
++++ new/util.c
+@@ -25,6 +25,7 @@
+ extern int verbose;
+ extern int dry_run;
+ extern int module_id;
+extern int do_fsync;
-
- int sanitize_paths = 0;
-
-@@ -298,6 +299,12 @@ int copy_file(char *source, char *dest,
- return -1;
+ extern int modify_window;
+ extern int relative_paths;
+ extern int human_readable;
+@@ -310,6 +311,13 @@ int copy_file(const char *source, const
+ 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) {
+ rsyserr(FERROR, errno, "close failed on %s",
+ full_fname(dest));