From: Ronnie Sahlberg <lsahlber@redhat.com>
To: linux-cifs <linux-cifs@vger.kernel.org>
Cc: Steve French <smfrench@gmail.com>
Subject: [PATCH 6/9] cifs: add a function to get a cached dir based on its dentry
Date: Tue, 9 Mar 2021 09:07:32 +1000 [thread overview]
Message-ID: <20210308230735.337-7-lsahlber@redhat.com> (raw)
In-Reply-To: <20210308230735.337-1-lsahlber@redhat.com>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
---
fs/cifs/smb2ops.c | 16 ++++++++++++++++
fs/cifs/smb2proto.h | 3 +++
2 files changed, 19 insertions(+)
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 81eb7f10368b..9e2e1ce915c9 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -925,6 +925,22 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
return rc;
}
+int open_cached_dir_by_dentry(struct cifs_tcon *tcon,
+ struct dentry *dentry,
+ struct cached_fid **cfid)
+{
+ mutex_lock(&tcon->crfid.fid_mutex);
+ if (tcon->crfid.dentry == dentry) {
+ cifs_dbg(FYI, "found a cached root file handle by dentry\n");
+ *cfid = &tcon->crfid;
+ kref_get(&tcon->crfid.refcount);
+ mutex_unlock(&tcon->crfid.fid_mutex);
+ return 0;
+ }
+ mutex_unlock(&tcon->crfid.fid_mutex);
+ return -ENOENT;
+}
+
static void
smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb)
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index ddbdf9923625..3b1cc27947df 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -73,6 +73,9 @@ extern int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
const char *path,
struct cifs_sb_info *cifs_sb,
struct cached_fid **cfid);
+extern int open_cached_dir_by_dentry(struct cifs_tcon *tcon,
+ struct dentry *dentry,
+ struct cached_fid **cfid);
extern void close_cached_dir(struct cached_fid *cfid);
extern void close_cached_dir_lease(struct cached_fid *cfid);
extern void close_cached_dir_lease_locked(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 ` [PATCH 2/9] cifs: pass a path to open_shroot and check if it is the root or not Ronnie Sahlberg
2021-04-10 0:08 ` 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 ` Ronnie Sahlberg [this message]
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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