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-rw-r--r--fs/relayfs/buffers.c2
-rw-r--r--fs/relayfs/relay.c30
2 files changed, 29 insertions, 3 deletions
diff --git a/fs/relayfs/buffers.c b/fs/relayfs/buffers.c
index 667b529..1018781 100644
--- a/fs/relayfs/buffers.c
+++ b/fs/relayfs/buffers.c
@@ -185,6 +185,6 @@ void relay_destroy_buf(struct rchan_buf *buf)
void relay_remove_buf(struct kref *kref)
{
struct rchan_buf *buf = container_of(kref, struct rchan_buf, kref);
- relayfs_remove(buf->dentry);
+ buf->chan->cb->remove_buf_file(buf->dentry);
relay_destroy_buf(buf);
}
diff --git a/fs/relayfs/relay.c b/fs/relayfs/relay.c
index a9cd558..b9bb569 100644
--- a/fs/relayfs/relay.c
+++ b/fs/relayfs/relay.c
@@ -80,11 +80,33 @@ static void buf_unmapped_default_callback(struct rchan_buf *buf,
{
}
+/*
+ * create_buf_file_create() default callback. Creates file to represent buf.
+ */
+static struct dentry *create_buf_file_default_callback(const char *filename,
+ struct dentry *parent,
+ int mode,
+ struct rchan_buf *buf)
+{
+ return relayfs_create_file(filename, parent, mode,
+ &relayfs_file_operations, buf);
+}
+
+/*
+ * remove_buf_file() default callback. Removes file representing relay buffer.
+ */
+static int remove_buf_file_default_callback(struct dentry *dentry)
+{
+ return relayfs_remove(dentry);
+}
+
/* relay channel default callbacks */
static struct rchan_callbacks default_channel_callbacks = {
.subbuf_start = subbuf_start_default_callback,
.buf_mapped = buf_mapped_default_callback,
.buf_unmapped = buf_unmapped_default_callback,
+ .create_buf_file = create_buf_file_default_callback,
+ .remove_buf_file = remove_buf_file_default_callback,
};
/**
@@ -176,8 +198,8 @@ static struct rchan_buf *relay_open_buf(struct rchan *chan,
return NULL;
/* Create file in fs */
- dentry = relayfs_create_file(filename, parent, S_IRUSR,
- &relayfs_file_operations, buf);
+ dentry = chan->cb->create_buf_file(filename, parent, S_IRUSR,
+ buf);
if (!dentry) {
relay_destroy_buf(buf);
return NULL;
@@ -220,6 +242,10 @@ static inline void setup_callbacks(struct rchan *chan,
cb->buf_mapped = buf_mapped_default_callback;
if (!cb->buf_unmapped)
cb->buf_unmapped = buf_unmapped_default_callback;
+ if (!cb->create_buf_file)
+ cb->create_buf_file = create_buf_file_default_callback;
+ if (!cb->remove_buf_file)
+ cb->remove_buf_file = remove_buf_file_default_callback;
chan->cb = cb;
}
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