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-rw-r--r--fs/cifs/connect.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 88f60aa52058..eae306fa24b2 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 */