Add "open noatime" module option to rsyncd.conf

diff --git a/clientserver.c b/clientserver.c
index 57bb1b9a0b4a1b3078f7a6402c296325eb5c6ea7..ab559e380b182fa6f985be2bc61ec46d4ac2c44d 100644 (file)
--- a/clientserver.c
+++ b/clientserver.c
@@ -38,6 +38,7 @@ extern int preserve_xattrs;
 extern int kluge_around_eof;
 extern int daemon_over_rsh;
 extern int munge_symlinks;
+extern int open_noatime;
 extern int sanitize_paths;
 extern int numeric_ids;
 extern int filesfrom_fd;
@@ -990,6 +991,8 @@ static int rsync_module(int f_in, int f_out, int i, const char *addr, const char
                orig_early_argv = NULL;
 
        munge_symlinks = save_munge_symlinks; /* The client mustn't control this. */
+       open_noatime = lp_open_noatime(module_id);
+
        if (am_daemon > 0)
                msgs2stderr = 0; /* A non-rsh-run daemon doesn't have stderr for msgs. */
 

diff --git a/daemon-parm.txt b/daemon-parm.txt
index 83ecc980e5481ffccaa319f390768dec03fceea6..db838124a5a7b6bb21408ef3703b66bdecfb21fc 100644 (file)
--- a/daemon-parm.txt
+++ b/daemon-parm.txt
@@ -57,6 +57,7 @@ BOOL  ignore_nonreadable      False
 BOOL   list                    True
 BOOL   munge_symlinks          (BOOL)-1
 BOOL   numeric_ids             (BOOL)-1
+BOOL   open_noatime            False
 BOOL   read_only               True
 BOOL   reverse_lookup          True
 BOOL   strict_modes            True

diff --git a/rsyncd.conf.5.md b/rsyncd.conf.5.md
index 4e9da77cca3ea26629fe8c777bcefb69ee1b30a9..d06ca3ddf8f5a8588013b83fd3f2bd2492a997cd 100644 (file)
--- a/rsyncd.conf.5.md
+++ b/rsyncd.conf.5.md
@@ -424,6 +424,15 @@ the values of parameters.  See the GLOBAL PARAMETERS section for more details.
     Helpful hint: you probably want to specify "refuse options = delete" for a
     write-only module.
 
+0.  `open noatime`
+
+    This parameter tells the rsync daemon to open files with the O_NOATIME flag
+    (on systems that support it) to avoid changing the access time of the files
+    that are being transferred.  If your OS does not support the O_NOATIME flag
+    then rsync will silently ignore this option.  Note also that some
+    filesystems are mounted to avoid updating the atime on read access even
+    without the O_NOATIME flag being set.
+
 0.  `list`
 
     This parameter determines whether this module is listed when the client