Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=03a1256f06cf1f58e33971fb4a524479e75c200e Commit: 03a1256f06cf1f58e33971fb4a524479e75c200e Parent: 62e1761ceff5dbb78c4b4b9486d8ca9fed11b660 Author: Trond Myklebust <[EMAIL PROTECTED]> AuthorDate: Fri Jun 8 14:14:53 2007 -0400 Committer: Trond Myklebust <[EMAIL PROTECTED]> CommitDate: Tue Jul 10 23:40:33 2007 -0400
SUNRPC: Add a field to track the number of kernel users of an rpc_pipe This allows us to correctly deduce when we need to remove the pipe. Signed-off-by: Trond Myklebust <[EMAIL PROTECTED]> --- include/linux/sunrpc/rpc_pipe_fs.h | 1 + net/sunrpc/rpc_pipe.c | 12 ++++++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h index 430cea1..51b977a 100644 --- a/include/linux/sunrpc/rpc_pipe_fs.h +++ b/include/linux/sunrpc/rpc_pipe_fs.h @@ -27,6 +27,7 @@ struct rpc_inode { int pipelen; int nreaders; int nwriters; + int nkern_readwriters; wait_queue_head_t waitq; #define RPC_PIPE_WAIT_FOR_OPEN 1 int flags; diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index e5fd796..e787b6a 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -737,6 +737,7 @@ rpc_mkpipe(struct dentry *parent, const char *name, void *private, struct rpc_pi dput (dentry); dentry = ERR_PTR(-EBUSY); } + rpci->nkern_readwriters++; goto out; } inode = rpc_get_inode(dir->i_sb, S_IFIFO | S_IRUSR | S_IWUSR); @@ -749,6 +750,7 @@ rpc_mkpipe(struct dentry *parent, const char *name, void *private, struct rpc_pi rpci->private = private; rpci->flags = flags; rpci->ops = ops; + rpci->nkern_readwriters = 1; inode_dir_notify(dir, DN_CREATE); dget(dentry); out: @@ -773,10 +775,12 @@ rpc_unlink(struct dentry *dentry) parent = dget_parent(dentry); dir = parent->d_inode; mutex_lock_nested(&dir->i_mutex, I_MUTEX_PARENT); - rpc_close_pipes(dentry->d_inode); - error = simple_unlink(dir, dentry); - if (!error) - d_delete(dentry); + if (--RPC_I(dentry->d_inode)->nkern_readwriters == 0) { + rpc_close_pipes(dentry->d_inode); + error = simple_unlink(dir, dentry); + if (!error) + d_delete(dentry); + } dput(dentry); mutex_unlock(&dir->i_mutex); dput(parent); - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html