diff options
Diffstat (limited to 'fs/relayfs/relay.c')
| -rw-r--r-- | fs/relayfs/relay.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/fs/relayfs/relay.c b/fs/relayfs/relay.c index a9cd5585c45ca3..b9bb569032729e 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; } |