summaryrefslogtreecommitdiff
path: root/fs/tracefs
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-01-16 10:15:32 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-16 10:15:32 +0200
commit4d66020dcef83314092f2c8c89152a8d122627e2 (patch)
treeedc887c616a323b07386963651eb2f89ed0ade1f /fs/tracefs
parent77dbd72b982ca648b42b4feac5f8b2ea55e4ed09 (diff)
parentf37c3bbc635994eda203a6da4ba0f9d05165a8d6 (diff)
Merge tag 'trace-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt: "New: - The Real Time Linux Analysis (RTLA) tool is added to the tools directory. - Can safely filter on user space pointers with: field.ustring ~ "match-string" - eprobes can now be filtered like any other event. - trace_marker(_raw) now uses stream_open() to allow multiple threads to safely write to it. Note, this could possibly break existing user space, but we will not know until we hear about it, and then can revert the change if need be. - New field in events to display when bottom halfs are disabled. - Sorting of the ftrace functions are now done at compile time instead of at bootup. Infrastructure changes to support future efforts: - Added __rel_loc type for trace events. Similar to __data_loc but the offset to the dynamic data is based off of the location of the descriptor and not the beginning of the event. Needed for user defined events. - Some simplification of event trigger code. - Make synthetic events process its callback better to not hinder other event callbacks that are registered. Needed for user defined events. And other small fixes and cleanups" * tag 'trace-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (50 commits) tracing: Add ustring operation to filtering string pointers rtla: Add rtla timerlat hist documentation rtla: Add rtla timerlat top documentation rtla: Add rtla timerlat documentation rtla: Add rtla osnoise hist documentation rtla: Add rtla osnoise top documentation rtla: Add rtla osnoise man page rtla: Add Documentation rtla/timerlat: Add timerlat hist mode rtla: Add timerlat tool and timelart top mode rtla/osnoise: Add the hist mode rtla/osnoise: Add osnoise top mode rtla: Add osnoise tool rtla: Helper functions for rtla rtla: Real-Time Linux Analysis tool tracing/osnoise: Properly unhook events if start_per_cpu_kthreads() fails tracing: Remove duplicate warnings when calling trace_create_file() tracing/kprobes: 'nmissed' not showed correctly for kretprobe tracing: Add test for user space strings when filtering on string pointers tracing: Have syscall trace events use trace_event_buffer_lock_reserve() ...
Diffstat (limited to 'fs/tracefs')
-rw-r--r--fs/tracefs/inode.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 3616839c5c4b..bafc02bf8220 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -109,12 +109,12 @@ static int tracefs_syscall_rmdir(struct inode *inode, struct dentry *dentry)
* also the directory that is being deleted.
*/
inode_unlock(inode);
- inode_unlock(dentry->d_inode);
+ inode_unlock(d_inode(dentry));
ret = tracefs_ops.rmdir(name);
inode_lock_nested(inode, I_MUTEX_PARENT);
- inode_lock(dentry->d_inode);
+ inode_lock(d_inode(dentry));
kfree(name);
@@ -284,7 +284,7 @@ static int tracefs_parse_options(char *data, struct tracefs_mount_opts *opts)
static int tracefs_apply_options(struct super_block *sb)
{
struct tracefs_fs_info *fsi = sb->s_fs_info;
- struct inode *inode = sb->s_root->d_inode;
+ struct inode *inode = d_inode(sb->s_root);
struct tracefs_mount_opts *opts = &fsi->mount_opts;
inode->i_mode &= ~S_IALLUGO;
@@ -403,18 +403,18 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
if (!parent)
parent = tracefs_mount->mnt_root;
- inode_lock(parent->d_inode);
- if (unlikely(IS_DEADDIR(parent->d_inode)))
+ inode_lock(d_inode(parent));
+ if (unlikely(IS_DEADDIR(d_inode(parent))))
dentry = ERR_PTR(-ENOENT);
else
dentry = lookup_one_len(name, parent, strlen(name));
- if (!IS_ERR(dentry) && dentry->d_inode) {
+ if (!IS_ERR(dentry) && d_inode(dentry)) {
dput(dentry);
dentry = ERR_PTR(-EEXIST);
}
if (IS_ERR(dentry)) {
- inode_unlock(parent->d_inode);
+ inode_unlock(d_inode(parent));
simple_release_fs(&tracefs_mount, &tracefs_mount_count);
}
@@ -423,7 +423,7 @@ static struct dentry *start_creating(const char *name, struct dentry *parent)
static struct dentry *failed_creating(struct dentry *dentry)
{
- inode_unlock(dentry->d_parent->d_inode);
+ inode_unlock(d_inode(dentry->d_parent));
dput(dentry);
simple_release_fs(&tracefs_mount, &tracefs_mount_count);
return NULL;
@@ -431,7 +431,7 @@ static struct dentry *failed_creating(struct dentry *dentry)
static struct dentry *end_creating(struct dentry *dentry)
{
- inode_unlock(dentry->d_parent->d_inode);
+ inode_unlock(d_inode(dentry->d_parent));
return dentry;
}
@@ -489,7 +489,7 @@ struct dentry *tracefs_create_file(const char *name, umode_t mode,
inode->i_uid = d_inode(dentry->d_parent)->i_uid;
inode->i_gid = d_inode(dentry->d_parent)->i_gid;
d_instantiate(dentry, inode);
- fsnotify_create(dentry->d_parent->d_inode, dentry);
+ fsnotify_create(d_inode(dentry->d_parent), dentry);
return end_creating(dentry);
}
@@ -516,8 +516,8 @@ static struct dentry *__create_dir(const char *name, struct dentry *parent,
/* directory inodes start off with i_nlink == 2 (for "." entry) */
inc_nlink(inode);
d_instantiate(dentry, inode);
- inc_nlink(dentry->d_parent->d_inode);
- fsnotify_mkdir(dentry->d_parent->d_inode, dentry);
+ inc_nlink(d_inode(dentry->d_parent));
+ fsnotify_mkdir(d_inode(dentry->d_parent), dentry);
return end_creating(dentry);
}