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authorSteve French <stfrench@microsoft.com>2023-05-08 00:45:45 -0500
committerSteve French <stfrench@microsoft.com>2023-05-09 00:59:48 -0500
commitba8c2b75b02a162202d31e6200ab15da1035a7d0 (patch)
treeafda9d2bbb314768ef2a2ea26fba737031552e63 /fs/cifs
parentcbd4cbabef646f1719a73a01cc491b1c1fea4d41 (diff)
smb3: improve parallel reads of large files
rasize (ra_pages) should be set higher than read size by default to allow parallel reads when reading large files in order to improve performance (otherwise there is much dead time on the network when doing readahead of large files). Default rasize to twice readsize. Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/cifsfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 32f7c81a7b89..81430abacf93 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -246,7 +246,7 @@ cifs_read_super(struct super_block *sb)
if (cifs_sb->ctx->rasize)
sb->s_bdi->ra_pages = cifs_sb->ctx->rasize / PAGE_SIZE;
else
- sb->s_bdi->ra_pages = cifs_sb->ctx->rsize / PAGE_SIZE;
+ sb->s_bdi->ra_pages = 2 * (cifs_sb->ctx->rsize / PAGE_SIZE);
sb->s_blocksize = CIFS_MAX_MSGSIZE;
sb->s_blocksize_bits = 14; /* default 2**14 = CIFS_MAX_MSGSIZE */