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smb: client: use ParentLeaseKey in cifs_do_create

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Implement ParentLeaseKey logic in cifs_do_create() by looking up the
parent cfid, copying its lease key into the fid struct, and setting
the appropriate lease flag.

Fixes: f047390a09 ("CIFS: Add create lease v2 context for SMB3")
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Henrique Carvalho 2025-05-28 17:30:03 -03:00 • committed by Steve French
parent 0f220d30c6
commit 037e1bae58
1 changed files with 23 additions and 0 deletions
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23
fs/smb/client/dir.c
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@ -23,6 +23,7 @@
#include "fs_context.h"
#include "cifs_ioctl.h"
#include "fscache.h"
#include "cached_dir.h"
static void
renew_parental_timestamps(struct dentry *direntry)
@ -190,6 +191,7 @@ static int cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned
struct TCP_Server_Info *server = tcon->ses->server;
struct cifs_open_parms oparms;
int rdwr_for_fscache = 0;
__le32 lease_flags = 0;
*oplock = 0;
if (tcon->ses->server->oplocks)
@ -312,6 +314,26 @@ static int cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned
create_options |= CREATE_OPTION_READONLY;
retry_open:
if (tcon->cfids && direntry->d_parent && server->dialect >= SMB30_PROT_ID) {
struct cached_fid *parent_cfid;
spin_lock(&tcon->cfids->cfid_list_lock);
list_for_each_entry(parent_cfid, &tcon->cfids->entries, entry) {
if (parent_cfid->dentry == direntry->d_parent) {
cifs_dbg(FYI, "found a parent cached file handle\n");
if (parent_cfid->has_lease && parent_cfid->time) {
lease_flags
|= SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET_LE;
memcpy(fid->parent_lease_key,
parent_cfid->fid.lease_key,
SMB2_LEASE_KEY_SIZE);
}
break;
}
}
spin_unlock(&tcon->cfids->cfid_list_lock);
}
oparms = (struct cifs_open_parms) {
.tcon = tcon,
.cifs_sb = cifs_sb,
@ -320,6 +342,7 @@ retry_open:
.disposition = disposition,
.path = full_path,
.fid = fid,
.lease_flags = lease_flags,
.mode = mode,
};
rc = server->ops->open(xid, &oparms, oplock, buf);