From: Peng Hao <flyingpenghao@gmail.com>
To: miklos@szeredi.hu
Cc: linux-fsdevel@vger.kernel.org
Subject: [PATCH] fuse: disable some features for readonly mount
Date: Wed, 17 Nov 2021 19:43:12 +0800 [thread overview]
Message-ID: <20211117114312.36445-1-flyingpeng@tencent.com> (raw)
auto_inval_data and parallel_dirops features are not necessary
for read-only mount.
Signed-off-by: Peng Hao <flyingpeng@tencent.com>
---
fs/fuse/inode.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 36cd03114b6d..de9e15091715 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1109,7 +1109,7 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args,
if (arg->flags & FUSE_DONT_MASK)
fc->dont_mask = 1;
if (arg->flags & FUSE_AUTO_INVAL_DATA)
- fc->auto_inval_data = 1;
+ fc->auto_inval_data = sb_rdonly(fm->sb) ? 0 : 1;
else if (arg->flags & FUSE_EXPLICIT_INVAL_DATA)
fc->explicit_inval_data = 1;
if (arg->flags & FUSE_DO_READDIRPLUS) {
@@ -1122,7 +1122,7 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args,
if (arg->flags & FUSE_WRITEBACK_CACHE)
fc->writeback_cache = 1;
if (arg->flags & FUSE_PARALLEL_DIROPS)
- fc->parallel_dirops = 1;
+ fc->parallel_dirops = sb_rdonly(fm->sb) ? 0 : 1;
if (arg->flags & FUSE_HANDLE_KILLPRIV)
fc->handle_killpriv = 1;
if (arg->time_gran && arg->time_gran <= 1000000000)
--
2.27.0
reply other threads:[~2021-11-17 11:43 UTC|newest]
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