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authorMiklos Szeredi <miklos@szeredi.hu>2006-12-20 17:48:08 +0000
committerMiklos Szeredi <miklos@szeredi.hu>2006-12-20 17:48:08 +0000
commitb3ffcfe3ac81b96026e9af04fdbb64e1efa5fb2f (patch)
treef48dfd826d63c6cebce203bc4b1da6ae2afa851d
parentd045a9be5e30b0ae251fb9f589bfa457c8d56c7d (diff)
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Work around write performace issues due to missing TCP_NODELAY in sshd
-rw-r--r--ChangeLog5
-rw-r--r--sshfs.c14
2 files changed, 18 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index b933cc5..d500221 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-12-20 Miklos Szeredi <miklos@szeredi.hu>
+
+ * Work around write performace issues due to missing TCP_NODELAY
+ in sshd. Reported by Justin Searle
+
2006-11-10 Miklos Szeredi <miklos@szeredi.hu>
* Fix bug which ommitted directory entries for symlinks with the
diff --git a/sshfs.c b/sshfs.c
index eb5dce4..499689d 100644
--- a/sshfs.c
+++ b/sshfs.c
@@ -158,6 +158,7 @@ struct sshfs {
char *workarounds;
int rename_workaround;
int nodelay_workaround;
+ int nodelaysrv_workaround;
int truncate_workaround;
int transform_symlinks;
int follow_symlinks;
@@ -271,6 +272,7 @@ static struct fuse_opt sshfs_opts[] = {
static struct fuse_opt workaround_opts[] = {
SSHFS_OPT("none", rename_workaround, 0),
SSHFS_OPT("none", nodelay_workaround, 0),
+ SSHFS_OPT("none", nodelaysrv_workaround, 0),
SSHFS_OPT("none", truncate_workaround, 0),
SSHFS_OPT("all", rename_workaround, 1),
SSHFS_OPT("all", nodelay_workaround, 1),
@@ -279,6 +281,8 @@ static struct fuse_opt workaround_opts[] = {
SSHFS_OPT("norename", rename_workaround, 0),
SSHFS_OPT("nodelay", nodelay_workaround, 1),
SSHFS_OPT("nonodelay", nodelay_workaround, 0),
+ SSHFS_OPT("nodelaysrv", nodelaysrv_workaround, 1),
+ SSHFS_OPT("nonodelaysrv", nodelaysrv_workaround, 0),
SSHFS_OPT("truncate", truncate_workaround, 1),
SSHFS_OPT("notruncate", truncate_workaround, 0),
FUSE_OPT_END
@@ -691,6 +695,12 @@ static int start_ssh(void)
if (sshfs.nodelay_workaround && do_ssh_nodelay_workaround() == -1)
fprintf(stderr, "warning: ssh nodelay workaround disabled\n");
+ if (sshfs.nodelaysrv_workaround) {
+ /* Hack to work around missing TCP_NODELAY setting in sshd */
+ sshfs.ssh_args.argv[1] = "-X";
+ setenv("DISPLAY", "", 1);
+ }
+
devnull = open("/dev/null", O_WRONLY);
if (dup2(sockpair[1], 0) == -1 || dup2(sockpair[1], 1) == -1) {
@@ -1047,7 +1057,7 @@ static int sftp_find_init_reply(uint32_t *version)
static int sftp_init()
{
int res = -1;
- uint32_t version;
+ uint32_t version = 0;
struct buffer buf;
buf_init(&buf, 0);
if (sftp_send_iov(SSH_FXP_INIT, PROTO_VERSION, NULL, 0) == -1)
@@ -2413,6 +2423,7 @@ static void usage(const char *progname)
" all all workarounds enabled\n"
" [no]rename fix renaming to existing file (default: off)\n"
" [no]nodelay set nodelay tcp flag in ssh (default: on)\n"
+" [no]nodelaysrv set nodelay tcp flag in sshd (default: on)\n"
" [no]truncate fix truncate for old servers (default: off)\n"
" -o idmap=TYPE user/group ID mapping, possible types are:\n"
" none no translation of the ID space (default)\n"
@@ -2570,6 +2581,7 @@ int main(int argc, char *argv[])
sshfs.blksize = 4096;
sshfs.max_read = 65536;
sshfs.nodelay_workaround = 1;
+ sshfs.nodelaysrv_workaround = 1;
sshfs.rename_workaround = 0;
sshfs.truncate_workaround = 0;
sshfs.ssh_ver = 2;