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| author | Zhao Chen <winters.zc@antgroup.com> | 2024-01-09 17:24:43 +0800 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2024-03-06 09:56:35 +0100 |
| commit | 9e7f5296f475ba5ab887ae3e55b922e17e99752b (patch) | |
| tree | eb33e03ce83450e7168ab505a0437b1f2f19788a /fs/fuse | |
| parent | 760eac73f9f69aa28fcb3050b4946c2dcc656d12 (diff) | |
| download | linux-9e7f5296f475ba5ab887ae3e55b922e17e99752b.tar.gz linux-9e7f5296f475ba5ab887ae3e55b922e17e99752b.tar.bz2 linux-9e7f5296f475ba5ab887ae3e55b922e17e99752b.zip | |
fuse: Use the high bit of request ID for indicating resend requests
Some FUSE daemons want to know if the received request is a resend
request. The high bit of the fuse request ID is utilized for indicating
this, enabling the receiver to perform appropriate handling.
The init flag "FUSE_HAS_RESEND" is added to indicate this feature.
Signed-off-by: Zhao Chen <winters.zc@antgroup.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse')
| -rw-r--r-- | fs/fuse/dev.c | 2 | ||||
| -rw-r--r-- | fs/fuse/inode.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 3c15a6b7f6f2..3ec8bb5e68ff 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1814,6 +1814,8 @@ static void fuse_resend(struct fuse_conn *fc) list_for_each_entry_safe(req, next, &to_queue, list) { __set_bit(FR_PENDING, &req->flags); + /* mark the request as resend request */ + req->in.h.unique |= FUSE_UNIQUE_RESEND; } spin_lock(&fiq->lock); diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index ca5fad57bfa4..02869edf72f3 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1370,7 +1370,7 @@ void fuse_send_init(struct fuse_mount *fm) FUSE_HANDLE_KILLPRIV_V2 | FUSE_SETXATTR_EXT | FUSE_INIT_EXT | FUSE_SECURITY_CTX | FUSE_CREATE_SUPP_GROUP | FUSE_HAS_EXPIRE_ONLY | FUSE_DIRECT_IO_ALLOW_MMAP | - FUSE_NO_EXPORT_SUPPORT; + FUSE_NO_EXPORT_SUPPORT | FUSE_HAS_RESEND; #ifdef CONFIG_FUSE_DAX if (fm->fc->dax) flags |= FUSE_MAP_ALIGNMENT; |