diff options
Diffstat (limited to 'fs/cifs/connect.c')
| -rw-r--r-- | fs/cifs/connect.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 4860940b748..ee70075c5fb 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -410,6 +410,24 @@ kvec_array_init(struct kvec *new, struct kvec *iov, unsigned int nr_segs, return nr_segs; } +static struct kvec * +get_server_iovec(struct TCP_Server_Info *server, unsigned int nr_segs) +{ + struct kvec *new_iov; + + if (server->iov && nr_segs <= server->nr_iov) + return server->iov; + + /* not big enough -- allocate a new one and release the old */ + new_iov = kmalloc(sizeof(*new_iov) * nr_segs, GFP_NOFS); + if (new_iov) { + kfree(server->iov); + server->iov = new_iov; + server->nr_iov = nr_segs; + } + return new_iov; +} + static int readv_from_socket(struct TCP_Server_Info *server, struct kvec *iov_orig, unsigned int nr_segs, unsigned int to_read) @@ -420,7 +438,7 @@ readv_from_socket(struct TCP_Server_Info *server, struct kvec *iov_orig, struct msghdr smb_msg; struct kvec *iov; - iov = kmalloc(sizeof(*iov_orig) * nr_segs, GFP_NOFS); + iov = get_server_iovec(server, nr_segs); if (!iov) return -ENOMEM; @@ -464,7 +482,6 @@ readv_from_socket(struct TCP_Server_Info *server, struct kvec *iov_orig, break; } } - kfree(iov); return total_read; } @@ -669,6 +686,7 @@ static void clean_demultiplex_info(struct TCP_Server_Info *server) } kfree(server->hostname); + kfree(server->iov); kfree(server); length = atomic_dec_return(&tcpSesAllocCount); |