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author | Peng Tao <bergwolf@gmail.com> | 2011-09-23 01:50:10 (GMT) |
---|---|---|
committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-10-18 16:08:12 (GMT) |
commit | c1225158a8dad9e9d5eee8a17dbbd9c7cda05ab9 (patch) | |
tree | ed543930670a47c3cb911d5580941584509b73f2 /fs | |
parent | fdc17abbc4b6094b34ee8ff5d91eaba8637594a2 (diff) | |
download | linux-fsl-qoriq-c1225158a8dad9e9d5eee8a17dbbd9c7cda05ab9.tar.xz |
SUNRPC/NFS: make rpc pipe upcall generic
The same function is used by idmap, gss and blocklayout code. Make it
generic.
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Cc: stable@kernel.org [3.0]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/nfs/blocklayout/blocklayout.c | 2 | ||||
-rw-r--r-- | fs/nfs/blocklayout/blocklayout.h | 2 | ||||
-rw-r--r-- | fs/nfs/blocklayout/blocklayoutdev.c | 22 | ||||
-rw-r--r-- | fs/nfs/idmap.c | 25 |
4 files changed, 2 insertions, 49 deletions
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index d2432f0..dc23833 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -964,7 +964,7 @@ static struct pnfs_layoutdriver_type blocklayout_type = { }; static const struct rpc_pipe_ops bl_upcall_ops = { - .upcall = bl_pipe_upcall, + .upcall = rpc_pipe_generic_upcall, .downcall = bl_pipe_downcall, .destroy_msg = bl_pipe_destroy_msg, }; diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h index 58dc256..42acf7e 100644 --- a/fs/nfs/blocklayout/blocklayout.h +++ b/fs/nfs/blocklayout/blocklayout.h @@ -169,8 +169,6 @@ extern wait_queue_head_t bl_wq; #define BL_DEVICE_REQUEST_ERR 0x2 /* User level process fails */ /* blocklayoutdev.c */ -ssize_t bl_pipe_upcall(struct file *, struct rpc_pipe_msg *, - char __user *, size_t); ssize_t bl_pipe_downcall(struct file *, const char __user *, size_t); void bl_pipe_destroy_msg(struct rpc_pipe_msg *); struct block_device *nfs4_blkdev_get(dev_t dev); diff --git a/fs/nfs/blocklayout/blocklayoutdev.c b/fs/nfs/blocklayout/blocklayoutdev.c index 0b1fb0e..d08ba91 100644 --- a/fs/nfs/blocklayout/blocklayoutdev.c +++ b/fs/nfs/blocklayout/blocklayoutdev.c @@ -79,28 +79,6 @@ int nfs4_blkdev_put(struct block_device *bdev) return blkdev_put(bdev, FMODE_READ); } -/* - * Shouldn't there be a rpc_generic_upcall() to do this for us? - */ -ssize_t bl_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg, - char __user *dst, size_t buflen) -{ - char *data = (char *)msg->data + msg->copied; - size_t mlen = min(msg->len - msg->copied, buflen); - unsigned long left; - - left = copy_to_user(dst, data, mlen); - if (left == mlen) { - msg->errno = -EFAULT; - return -EFAULT; - } - - mlen -= left; - msg->copied += mlen; - msg->errno = 0; - return mlen; -} - static struct bl_dev_msg bl_mount_reply; ssize_t bl_pipe_downcall(struct file *filp, const char __user *src, diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c index f20801a..47d1c6f 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/idmap.c @@ -336,8 +336,6 @@ struct idmap { struct idmap_hashtable idmap_group_hash; }; -static ssize_t idmap_pipe_upcall(struct file *, struct rpc_pipe_msg *, - char __user *, size_t); static ssize_t idmap_pipe_downcall(struct file *, const char __user *, size_t); static void idmap_pipe_destroy_msg(struct rpc_pipe_msg *); @@ -345,7 +343,7 @@ static void idmap_pipe_destroy_msg(struct rpc_pipe_msg *); static unsigned int fnvhash32(const void *, size_t); static const struct rpc_pipe_ops idmap_upcall_ops = { - .upcall = idmap_pipe_upcall, + .upcall = rpc_pipe_generic_upcall, .downcall = idmap_pipe_downcall, .destroy_msg = idmap_pipe_destroy_msg, }; @@ -595,27 +593,6 @@ nfs_idmap_name(struct idmap *idmap, struct idmap_hashtable *h, return ret; } -/* RPC pipefs upcall/downcall routines */ -static ssize_t -idmap_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg, - char __user *dst, size_t buflen) -{ - char *data = (char *)msg->data + msg->copied; - size_t mlen = min(msg->len, buflen); - unsigned long left; - - left = copy_to_user(dst, data, mlen); - if (left == mlen) { - msg->errno = -EFAULT; - return -EFAULT; - } - - mlen -= left; - msg->copied += mlen; - msg->errno = 0; - return mlen; -} - static ssize_t idmap_pipe_downcall(struct file *filp, const char __user *src, size_t mlen) { |