diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2025-05-04 21:04:08 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2025-05-06 12:49:07 -0400 |
| commit | 2dbf6e0df447d1542f8fd158b17a06d2e8ede15e (patch) | |
| tree | e63f05811918de7fc054110ec0aab57ee5fc1b32 /kernel | |
| parent | 006ff7498fe89bd9dfb891101f02557d5cfcf427 (diff) | |
kill vfs_submount()
The last remaining user of vfs_submount() (tracefs) is easy to convert
to fs_context_for_submount(); do that and bury that thing, along with
SB_SUBMOUNT
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index e22aacb0028ae..936a615e8c56e 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -51,6 +51,7 @@ #include <linux/workqueue.h> #include <linux/sort.h> #include <linux/io.h> /* vmap_page_range() */ +#include <linux/fs_context.h> #include <asm/setup.h> /* COMMAND_LINE_SIZE */ @@ -10075,6 +10076,8 @@ static struct vfsmount *trace_automount(struct dentry *mntpt, void *ingore) { struct vfsmount *mnt; struct file_system_type *type; + struct fs_context *fc; + int ret; /* * To maintain backward compatibility for tools that mount @@ -10084,10 +10087,20 @@ static struct vfsmount *trace_automount(struct dentry *mntpt, void *ingore) type = get_fs_type("tracefs"); if (!type) return NULL; - mnt = vfs_submount(mntpt, type, "tracefs", NULL); + + fc = fs_context_for_submount(type, mntpt); put_filesystem(type); - if (IS_ERR(mnt)) - return NULL; + if (IS_ERR(fc)) + return ERR_CAST(fc); + + ret = vfs_parse_fs_string(fc, "source", + "tracefs", strlen("tracefs")); + if (!ret) + mnt = fc_mount(fc); + else + mnt = ERR_PTR(ret); + + put_fs_context(fc); return mnt; } |