From: Ronnie Sahlberg <lsahlber@redhat.com>
To: linux-cifs <linux-cifs@vger.kernel.org>
Cc: Steve French <smfrench@gmail.com>
Subject: [PATCH 2/9] cifs: pass a path to open_shroot and check if it is the root or not
Date: Tue, 9 Mar 2021 09:07:28 +1000 [thread overview]
Message-ID: <20210308230735.337-3-lsahlber@redhat.com> (raw)
In-Reply-To: <20210308230735.337-1-lsahlber@redhat.com>
Move the check for the directory path into the open_shroot() function
but still fail for any non-root directories.
This is preparation for later when we will start using the cache also
for other directories than the root.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
---
fs/cifs/smb2inode.c | 22 ++++++++++------------
fs/cifs/smb2ops.c | 6 +++++-
fs/cifs/smb2proto.h | 1 +
3 files changed, 16 insertions(+), 13 deletions(-)
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 3d59614cbe8f..67f80c9561fc 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -523,22 +523,20 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
return -ENOMEM;
/* If it is a root and its handle is cached then use it */
- if (!strlen(full_path)) {
- rc = open_shroot(xid, tcon, cifs_sb, &cfid);
- if (!rc) {
- if (tcon->crfid.file_all_info_is_valid) {
- move_smb2_info_to_cifs(data,
+ rc = open_shroot(xid, tcon, full_path, cifs_sb, &cfid);
+ if (!rc) {
+ if (tcon->crfid.file_all_info_is_valid) {
+ move_smb2_info_to_cifs(data,
&tcon->crfid.file_all_info);
- } else {
- rc = SMB2_query_info(xid, tcon,
+ } else {
+ rc = SMB2_query_info(xid, tcon,
cfid->fid->persistent_fid,
cfid->fid->volatile_fid, smb2_data);
- if (!rc)
- move_smb2_info_to_cifs(data, smb2_data);
- }
- close_shroot(cfid);
- goto out;
+ if (!rc)
+ move_smb2_info_to_cifs(data, smb2_data);
}
+ close_shroot(cfid);
+ goto out;
}
cifs_get_readable_path(tcon, full_path, &cfile);
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 7ee6926153b8..96ff946674e6 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -728,6 +728,7 @@ smb2_cached_lease_break(struct work_struct *work)
* Open the directory at the root of a share
*/
int open_shroot(unsigned int xid, struct cifs_tcon *tcon,
+ const char *path,
struct cifs_sb_info *cifs_sb,
struct cached_fid **cfid)
{
@@ -749,6 +750,9 @@ int open_shroot(unsigned int xid, struct cifs_tcon *tcon,
if (tcon->nohandlecache)
return -ENOTSUPP;
+ if (strlen(path))
+ return -ENOTSUPP;
+
mutex_lock(&tcon->crfid.fid_mutex);
if (tcon->crfid.is_valid) {
cifs_dbg(FYI, "found a cached root file handle\n");
@@ -926,7 +930,7 @@ smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon,
oparms.fid = &fid;
oparms.reconnect = false;
- rc = open_shroot(xid, tcon, cifs_sb, &cfid);
+ rc = open_shroot(xid, tcon, "", cifs_sb, &cfid);
if (rc == 0)
memcpy(&fid, cfid->fid, sizeof(struct cifs_fid));
else
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 9565e27681a5..7e4fc69c8b01 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -70,6 +70,7 @@ extern int smb3_handle_read_data(struct TCP_Server_Info *server,
struct mid_q_entry *mid);
extern int open_shroot(unsigned int xid, struct cifs_tcon *tcon,
+ const char *path,
struct cifs_sb_info *cifs_sb,
struct cached_fid **cfid);
extern void close_shroot(struct cached_fid *cfid);
--
2.13.6
next prev parent reply other threads:[~2021-03-08 23:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210308230735.337-1-lsahlber@redhat.com>
2021-03-08 23:07 ` [PATCH 1/9] cifs: move the check for nohandlecache into open_shroot Ronnie Sahlberg
2021-04-09 4:42 ` Steve French
2021-04-10 0:05 ` Steve French
2021-03-08 23:07 ` Ronnie Sahlberg [this message]
2021-04-10 0:08 ` [PATCH 2/9] cifs: pass a path to open_shroot and check if it is the root or not Steve French
2021-03-08 23:07 ` [PATCH 3/9] cifs: rename the *_shroot* functions to *_cached_dir* Ronnie Sahlberg
2021-04-10 0:10 ` Steve French
2021-03-08 23:07 ` [PATCH 4/9] cifs: store a pointer to the root dentry in cifs_sb_info once we have completed mounting the share Ronnie Sahlberg
2021-04-10 0:57 ` Steve French
2021-03-08 23:07 ` [PATCH 5/9] cifs: Grab a reference for the dentry of the cached directory during the lifetime of the cache Ronnie Sahlberg
2021-03-08 23:07 ` [PATCH 6/9] cifs: add a function to get a cached dir based on its dentry Ronnie Sahlberg
2021-03-08 23:07 ` [PATCH 7/9] cifs: add a timestamp to track when the lease of the cached dir was taken Ronnie Sahlberg
2021-03-08 23:07 ` [PATCH 8/9] cifs: pass the dentry instead of the inode down to the revalidation check functions Ronnie Sahlberg
2021-03-08 23:07 ` [PATCH 9/9] cifs: check the timestamp for the cached dirent when deciding on revalidate Ronnie Sahlberg
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