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virtiofsd: Add fuse_reply_attr_with_flags()

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The plain fuse_reply_attr() function does not allow setting
fuse_attr.flags, so add this new function that does.

Make fuse_reply_attr() a wrapper around it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200909184028.262297-5-mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Max Reitz 2020-09-09 20:40:24 +02:00 committed by Dr. David Alan Gilbert
parent e2577435d3
commit ede24b6be7
2 changed files with 27 additions and 2 deletions
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14
tools/virtiofsd/fuse_lowlevel.c
View File

@ -426,8 +426,8 @@ int fuse_reply_create(fuse_req_t req, const struct fuse_entry_param *e,
return send_reply_ok(req, buf, entrysize + sizeof(struct fuse_open_out));
}
int fuse_reply_attr(fuse_req_t req, const struct stat *attr,
double attr_timeout)
int fuse_reply_attr_with_flags(fuse_req_t req, const struct stat *attr,
double attr_timeout, uint32_t attr_flags)
{
struct fuse_attr_out arg;
size_t size = sizeof(arg);
@ -437,9 +437,19 @@ int fuse_reply_attr(fuse_req_t req, const struct stat *attr,
arg.attr_valid_nsec = calc_timeout_nsec(attr_timeout);
convert_stat(attr, &arg.attr);
if (req->se->conn.capable & FUSE_CAP_ATTR_FLAGS) {
arg.attr.flags = attr_flags;
}
return send_reply_ok(req, &arg, size);
}
int fuse_reply_attr(fuse_req_t req, const struct stat *attr,
double attr_timeout)
{
return fuse_reply_attr_with_flags(req, attr, attr_timeout, 0);
}
int fuse_reply_readlink(fuse_req_t req, const char *linkname)
{
return send_reply_ok(req, linkname, strlen(linkname));

15
tools/virtiofsd/fuse_lowlevel.h
View File

@ -1313,6 +1313,21 @@ int fuse_reply_create(fuse_req_t req, const struct fuse_entry_param *e,
int fuse_reply_attr(fuse_req_t req, const struct stat *attr,
double attr_timeout);
/**
* Reply with attributes and set fuse_attr.flags
*
* Possible requests:
* getattr, setattr
*
* @param req request handle
* @param attr the attributes
* @param attr_timeout validity timeout (in seconds) for the attributes
* @param attr_flags flags to put into fuse_attr.flags
* @return zero for success, -errno for failure to send reply
*/
int fuse_reply_attr_with_flags(fuse_req_t req, const struct stat *attr,
double attr_timeout, uint32_t attr_flags);
/**
* Reply with the contents of a symbolic link
*