diff options
| -rw-r--r-- | fs/tracefs/inode.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c index bb6de89eb446..c7a10f965602 100644 --- a/fs/tracefs/inode.c +++ b/fs/tracefs/inode.c @@ -310,6 +310,7 @@ static int tracefs_apply_options(struct super_block *sb, bool remount) struct tracefs_fs_info *fsi = sb->s_fs_info; struct inode *inode = d_inode(sb->s_root); struct tracefs_mount_opts *opts = &fsi->mount_opts; + umode_t tmp_mode; /* * On remount, only reset mode/uid/gid if they were provided as mount @@ -317,8 +318,9 @@ static int tracefs_apply_options(struct super_block *sb, bool remount) */ if (!remount || opts->opts & BIT(Opt_mode)) { - inode->i_mode &= ~S_IALLUGO; - inode->i_mode |= opts->mode; + tmp_mode = READ_ONCE(inode->i_mode) & ~S_IALLUGO; + tmp_mode |= opts->mode; + WRITE_ONCE(inode->i_mode, tmp_mode); } if (!remount || opts->opts & BIT(Opt_uid)) |