From: Gao Xiang <hsiangkao@linux.alibaba.com> To: linux-erofs@lists.ozlabs.org, Chao Yu <chao@kernel.org> Cc: LKML <linux-kernel@vger.kernel.org>, Gao Xiang <hsiangkao@linux.alibaba.com>, stable@vger.kernel.org Subject: [PATCH 1/2] erofs: fix up erofs_lookup tracepoint Date: Tue, 21 Sep 2021 22:35:30 +0800 [thread overview] Message-ID: <20210921143531.81356-1-hsiangkao@linux.alibaba.com> (raw) Fix up a misuse that the filename pointer isn't always valid in the ring buffer, and we should copy the content instead. Fixes: 13f06f48f7bf ("staging: erofs: support tracepoint") Cc: stable@vger.kernel.org # 4.19+ Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> --- include/trace/events/erofs.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/trace/events/erofs.h b/include/trace/events/erofs.h index bf9806f..db4f2ce 100644 --- a/include/trace/events/erofs.h +++ b/include/trace/events/erofs.h @@ -35,20 +35,20 @@ TP_STRUCT__entry( __field(dev_t, dev ) __field(erofs_nid_t, nid ) - __field(const char *, name ) + __string(name, dentry->d_name.name ) __field(unsigned int, flags ) ), TP_fast_assign( __entry->dev = dir->i_sb->s_dev; __entry->nid = EROFS_I(dir)->nid; - __entry->name = dentry->d_name.name; + __assign_str(name, dentry->d_name.name); __entry->flags = flags; ), TP_printk("dev = (%d,%d), pnid = %llu, name:%s, flags:%x", show_dev_nid(__entry), - __entry->name, + __get_str(name), __entry->flags) ); -- 1.8.3.1
WARNING: multiple messages have this Message-ID (diff)
From: Gao Xiang <hsiangkao@linux.alibaba.com> To: linux-erofs@lists.ozlabs.org, Chao Yu <chao@kernel.org> Cc: Gao Xiang <hsiangkao@linux.alibaba.com>, LKML <linux-kernel@vger.kernel.org>, stable@vger.kernel.org Subject: [PATCH 1/2] erofs: fix up erofs_lookup tracepoint Date: Tue, 21 Sep 2021 22:35:30 +0800 [thread overview] Message-ID: <20210921143531.81356-1-hsiangkao@linux.alibaba.com> (raw) Fix up a misuse that the filename pointer isn't always valid in the ring buffer, and we should copy the content instead. Fixes: 13f06f48f7bf ("staging: erofs: support tracepoint") Cc: stable@vger.kernel.org # 4.19+ Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com> --- include/trace/events/erofs.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/trace/events/erofs.h b/include/trace/events/erofs.h index bf9806f..db4f2ce 100644 --- a/include/trace/events/erofs.h +++ b/include/trace/events/erofs.h @@ -35,20 +35,20 @@ TP_STRUCT__entry( __field(dev_t, dev ) __field(erofs_nid_t, nid ) - __field(const char *, name ) + __string(name, dentry->d_name.name ) __field(unsigned int, flags ) ), TP_fast_assign( __entry->dev = dir->i_sb->s_dev; __entry->nid = EROFS_I(dir)->nid; - __entry->name = dentry->d_name.name; + __assign_str(name, dentry->d_name.name); __entry->flags = flags; ), TP_printk("dev = (%d,%d), pnid = %llu, name:%s, flags:%x", show_dev_nid(__entry), - __entry->name, + __get_str(name), __entry->flags) ); -- 1.8.3.1
next reply other threads:[~2021-09-21 14:35 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-21 14:35 Gao Xiang [this message] 2021-09-21 14:35 ` [PATCH 1/2] erofs: fix up erofs_lookup tracepoint Gao Xiang 2021-09-21 14:35 ` [PATCH 2/2] erofs: clean up erofs_map_blocks tracepoints Gao Xiang 2021-09-21 14:35 ` Gao Xiang 2021-09-23 14:13 ` Chao Yu 2021-09-23 14:35 ` Gao Xiang 2021-09-23 13:34 ` [PATCH 1/2] erofs: fix up erofs_lookup tracepoint Chao Yu
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210921143531.81356-1-hsiangkao@linux.alibaba.com \ --to=hsiangkao@linux.alibaba.com \ --cc=chao@kernel.org \ --cc=linux-erofs@lists.ozlabs.org \ --cc=linux-kernel@vger.kernel.org \ --cc=stable@vger.kernel.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.