diff options
| author | Randall P. Embry <rpembry@gmail.com> | 2025-09-26 18:27:30 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-03 12:45:14 +0100 |
| commit | 1831e39b09ce5d9368a7750a217214666ddae55b (patch) | |
| tree | 1e60fc1b596c0f5cec03bdb79b776ccd6a6f3c2b | |
| parent | 4c821ffa2ab5ef4f5bb9fb37f8902a9d990981fe (diff) | |
9p: fix /sys/fs/9p/caches overwriting itself
[ Upstream commit 86db0c32f16c5538ddb740f54669ace8f3a1f3d7 ]
caches_show() overwrote its buffer on each iteration,
so only the last cache tag was visible in sysfs output.
Properly append with snprintf(buf + count, …).
Signed-off-by: Randall P. Embry <rpembry@gmail.com>
Message-ID: <20250926-v9fs_misc-v1-2-a8b3907fc04d@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | fs/9p/v9fs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 39def020a074..b304e070139c 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -558,7 +558,7 @@ static ssize_t caches_show(struct kobject *kobj, spin_lock(&v9fs_sessionlist_lock); list_for_each_entry(v9ses, &v9fs_sessionlist, slist) { if (v9ses->cachetag) { - n = snprintf(buf, limit, "%s\n", v9ses->cachetag); + n = snprintf(buf + count, limit, "%s\n", v9ses->cachetag); if (n < 0) { count = n; break; |