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| author | Steve French <sfrench@us.ibm.com> | 2005-10-10 10:34:22 -0700 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-10-10 10:34:22 -0700 |
| commit | 68058e757573d4e81550e74c5a03a29a29069ce7 (patch) | |
| tree | d8c6c318e2e486ae707a22915983afd512f38b51 /fs/cifs/transport.c | |
| parent | 131afd0b748e382c3a00355d3fa245801f929298 (diff) | |
| download | blackbird-op-linux-68058e757573d4e81550e74c5a03a29a29069ce7.tar.gz blackbird-op-linux-68058e757573d4e81550e74c5a03a29a29069ce7.zip | |
[CIFS] Reduce CIFS tcp congestion timeout (it was too long) and backoff
ever longer amounts (up to 15 seconds). This improves performance
especially when using large wsize.
Signed-off-by: Steve French (sfrench@us.ibm.com)
Diffstat (limited to 'fs/cifs/transport.c')
| -rw-r--r-- | fs/cifs/transport.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 893a6fef9853..d9b11690746d 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -157,14 +157,14 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer, /* smaller timeout here than send2 since smaller size */ /* Although it may not be required, this also is smaller oplock break time */ - if(i > 30) { + if(i > 12) { cERROR(1, - ("sends on sock %p stuck for 15 seconds", + ("sends on sock %p stuck for 7 seconds", ssocket)); rc = -EAGAIN; break; } - msleep(500); + msleep(1 << i); continue; } if (rc < 0) @@ -224,14 +224,14 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, n_vec - first_vec, total_len); if ((rc == -ENOSPC) || (rc == -EAGAIN)) { i++; - if(i > 40) { + if(i >= 14) { cERROR(1, - ("sends on sock %p stuck for 20 seconds", + ("sends on sock %p stuck for 15 seconds", ssocket)); rc = -EAGAIN; break; } - msleep(500); + msleep(1 << i); continue; } if (rc < 0) @@ -249,6 +249,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec, continue; } total_len -= rc; + /* the line below resets i */ for (i = first_vec; i < n_vec; i++) { if (iov[i].iov_len) { if (rc > iov[i].iov_len) { |
