diff options
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.c | 2 | ||||
| -rw-r--r-- | kernel/trace/trace_events.c | 19 | ||||
| -rw-r--r-- | kernel/trace/trace_functions_graph.c | 8 | ||||
| -rw-r--r-- | kernel/trace/trace_output.c | 3 | ||||
| -rw-r--r-- | kernel/trace/trace_uprobe.c | 2 |
5 files changed, 26 insertions, 8 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 91eecaaa43e0..05330494a0df 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -6079,7 +6079,7 @@ trace_create_cpu_file(const char *name, umode_t mode, struct dentry *parent, struct dentry *ret = trace_create_file(name, mode, parent, data, fops); if (ret) /* See tracing_get_cpu() */ - ret->d_inode->i_cdev = (void *)(cpu + 1); + d_inode(ret)->i_cdev = (void *)(cpu + 1); return ret; } diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 7da1dfeb322e..c4de47fc5cca 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -494,8 +494,8 @@ static void remove_event_file_dir(struct ftrace_event_file *file) if (dir) { spin_lock(&dir->d_lock); /* probably unneeded */ list_for_each_entry(child, &dir->d_subdirs, d_child) { - if (child->d_inode) /* probably unneeded */ - child->d_inode->i_private = NULL; + if (d_really_is_positive(child)) /* probably unneeded */ + d_inode(child)->i_private = NULL; } spin_unlock(&dir->d_lock); @@ -565,6 +565,7 @@ static int __ftrace_set_clr_event(struct trace_array *tr, const char *match, static int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set) { char *event = NULL, *sub = NULL, *match; + int ret; /* * The buf format can be <subsystem>:<event-name> @@ -590,7 +591,13 @@ static int ftrace_set_clr_event(struct trace_array *tr, char *buf, int set) event = NULL; } - return __ftrace_set_clr_event(tr, match, sub, event, set); + ret = __ftrace_set_clr_event(tr, match, sub, event, set); + + /* Put back the colon to allow this to be called again */ + if (buf) + *(buf - 1) = ':'; + + return ret; } /** @@ -1753,6 +1760,8 @@ static void update_event_printk(struct ftrace_event_call *call, ptr++; /* Check for alpha chars like ULL */ } while (isalnum(*ptr)); + if (!*ptr) + break; /* * A number must have some kind of delimiter after * it, and we can ignore that too. @@ -1779,12 +1788,16 @@ static void update_event_printk(struct ftrace_event_call *call, do { ptr++; } while (isalnum(*ptr) || *ptr == '_'); + if (!*ptr) + break; /* * If what comes after this variable is a '.' or * '->' then we can continue to ignore that string. */ if (*ptr == '.' || (ptr[0] == '-' && ptr[1] == '>')) { ptr += *ptr == '.' ? 1 : 2; + if (!*ptr) + break; goto skip_more; } /* diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c index 9cfea4c6d314..a51e79688455 100644 --- a/kernel/trace/trace_functions_graph.c +++ b/kernel/trace/trace_functions_graph.c @@ -1308,15 +1308,19 @@ void graph_trace_open(struct trace_iterator *iter) { /* pid and depth on the last trace processed */ struct fgraph_data *data; + gfp_t gfpflags; int cpu; iter->private = NULL; - data = kzalloc(sizeof(*data), GFP_KERNEL); + /* We can be called in atomic context via ftrace_dump() */ + gfpflags = (in_atomic() || irqs_disabled()) ? GFP_ATOMIC : GFP_KERNEL; + + data = kzalloc(sizeof(*data), gfpflags); if (!data) goto out_err; - data->cpu_data = alloc_percpu(struct fgraph_cpu_data); + data->cpu_data = alloc_percpu_gfp(struct fgraph_cpu_data, gfpflags); if (!data->cpu_data) goto out_err_free; diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 692bf7184c8c..25a086bcb700 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -178,12 +178,13 @@ ftrace_print_hex_seq(struct trace_seq *p, const unsigned char *buf, int buf_len) EXPORT_SYMBOL(ftrace_print_hex_seq); const char * -ftrace_print_array_seq(struct trace_seq *p, const void *buf, int buf_len, +ftrace_print_array_seq(struct trace_seq *p, const void *buf, int count, size_t el_size) { const char *ret = trace_seq_buffer_ptr(p); const char *prefix = ""; void *ptr = (void *)buf; + size_t buf_len = count * el_size; trace_seq_putc(p, '{'); diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index d60fe62ec4fa..6dd022c7b5bc 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -443,7 +443,7 @@ static int create_trace_uprobe(int argc, char **argv) if (ret) goto fail_address_parse; - inode = igrab(path.dentry->d_inode); + inode = igrab(d_inode(path.dentry)); path_put(&path); if (!inode || !S_ISREG(inode->i_mode)) { |
