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| author | Steve French <sfrench@us.ibm.com> | 2006-01-24 20:26:48 -0800 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2006-01-24 20:26:48 -0800 |
| commit | 17cbbafe8e82bde4258e407ce043b61f4f9a350f (patch) | |
| tree | 1a79ce7f9febeef296cb6b43144af3f777f83f39 | |
| parent | 4c8af5254e741983e141e10002e01abba87f8419 (diff) | |
| download | op-kernel-dev-17cbbafe8e82bde4258e407ce043b61f4f9a350f.zip op-kernel-dev-17cbbafe8e82bde4258e407ce043b61f4f9a350f.tar.gz | |
[CIFS] Make cifs default wsize match what we actually want to send (52K
typically - header + 13 pages).
Forgetting to set wsize on the mount command costs more than 10% on large
write (can be much more) so this makes a saner default. We still shrink
this default smaller if server can not support it.
Signed-off-by: Steve French <sfrench@us.ibm.com>
| -rw-r--r-- | fs/cifs/connect.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 88f60aa..eae306f 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1785,7 +1785,15 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, } else if(volume_info.wsize) cifs_sb->wsize = volume_info.wsize; else - cifs_sb->wsize = CIFSMaxBufSize; /* default */ + cifs_sb->wsize = + min(PAGEVEC_SIZE * PAGE_CACHE_SIZE, 127*1024); + /* old default of CIFSMaxBufSize was too small now + that SMB Write2 can send multiple pages in kvec. + RFC1001 does not describe what happens when frame + bigger than 128K is sent so use that as max in + conjunction with 52K kvec constraint on arch with 4K + page size */ + if(cifs_sb->rsize < PAGE_CACHE_SIZE) { cifs_sb->rsize = PAGE_CACHE_SIZE; /* Windows ME does this */ |
