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From: Ronnie Sahlberg <lsahlber@redhat.com>
To: linux-cifs <linux-cifs@vger.kernel.org>
Cc: Steve French <smfrench@gmail.com>, Ronnie Sahlberg <lsahlber@redhat.com>
Subject: [PATCH 6/9] cifs: cifs: handlecache, only track the dentry for the root handle
Date: Tue,  9 Aug 2022 12:11:53 +1000	[thread overview]
Message-ID: <20220809021156.3086869-7-lsahlber@redhat.com> (raw)
In-Reply-To: <20220809021156.3086869-1-lsahlber@redhat.com>

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
---
 fs/cifs/cached_dir.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/cifs/cached_dir.c b/fs/cifs/cached_dir.c
index 1fb80b23bbeb..9423fee378f4 100644
--- a/fs/cifs/cached_dir.c
+++ b/fs/cifs/cached_dir.c
@@ -47,11 +47,12 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
 	if (cifs_sb->root == NULL)
 		return -ENOENT;
 
+	if (!strlen(path))
+		dentry = cifs_sb->root;
+
 	if (strlen(path))
 		return -ENOENT;
 
-	dentry = cifs_sb->root;
-
 	cfid = &tcon->cfids->cfid;
 	mutex_lock(&cfid->fid_mutex);
 	if (cfid->is_valid) {
@@ -177,7 +178,8 @@ int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
 	cfid->tcon = tcon;
 	cfid->is_valid = true;
 	cfid->dentry = dentry;
-	dget(dentry);
+	if (dentry)
+		dget(dentry);
 	kref_init(&cfid->refcount);
 
 	/* BB TBD check to see if oplock level check can be removed below */
-- 
2.35.3


  parent reply	other threads:[~2022-08-09  2:12 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-09  2:11 WIP: Expand directory handle cache to also cache non-root directories Ronnie Sahlberg
2022-08-09  2:11 ` [PATCH 1/9] cifs: Move cached-dir functions into a separate file Ronnie Sahlberg
2022-08-11  2:53   ` Steve French
2022-08-11  3:08     ` Steve French
2022-08-11 13:03   ` Paulo Alcantara
2022-08-09  2:11 ` [PATCH 2/9] cifs: Do not use tcon->cfid directly, use the cfid we get from open_cached_dir Ronnie Sahlberg
2022-08-09  4:22   ` Steve French
2022-08-11 13:03   ` Paulo Alcantara
2022-08-09  2:11 ` [PATCH 3/9] cifs: Add constructor/destructors for tcon->cfid Ronnie Sahlberg
2022-08-11 13:15   ` Paulo Alcantara
2022-08-12  0:14     ` Steve French
2022-08-09  2:11 ` [PATCH 4/9] cifs: Make tcon contain a wrapper structure cached_fids instead of cached_fid Ronnie Sahlberg
2022-08-11 13:16   ` Paulo Alcantara
2022-08-09  2:11 ` [PATCH 5/9] cifs: Do not access tcon->cfids->cfid directly from is_path_accessible Ronnie Sahlberg
2022-08-11 13:20   ` Paulo Alcantara
2022-08-12  0:56     ` Steve French
2022-08-12  0:57       ` Steve French
2022-08-12  1:26         ` Steve French
2022-08-12  1:34           ` Steve French
2022-08-09  2:11 ` Ronnie Sahlberg [this message]
2022-08-11 13:34   ` [PATCH 6/9] cifs: cifs: handlecache, only track the dentry for the root handle Paulo Alcantara
2022-08-09  2:11 ` [PATCH 7/9] cifs: store a pointer to a fid in the cfid structure instead of the struct Ronnie Sahlberg
2022-08-11 13:37   ` Paulo Alcantara
2022-08-09  2:11 ` [PATCH 8/9] cifs: don't unlock cifs_tcp_ses_lock in cached_dir_lease_break() Ronnie Sahlberg
2022-08-11 13:38   ` Paulo Alcantara
2022-08-11 15:27     ` Steve French
2022-08-09  2:11 ` [PATCH 9/9] cifs: start caching all directories we open and get a lease for Ronnie Sahlberg

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