From: Wengang Wang <wen.gang.wang@oracle.com> To: ocfs2-devel@oss.oracle.com Cc: wen.gang.wang@oracle.com, stable@vger.kernel.org Subject: [PATCH] ocfs2: drop acl cache for directories too Date: Thu, 2 Sep 2021 18:26:31 -0700 [thread overview] Message-ID: <20210903012631.6099-1-wen.gang.wang@oracle.com> (raw) ocfs2_data_convert_worker() is currently dropping any cached acl info for FILE before down-converting meta lock. It should also drop for DIRECTORY. Otherwise the second acl lookup returns the cached one (from VFS layer) which could be already stale. The problem we are seeing is that the acl changes on one node doesn't get refreshed on other nodes in the following case: Node 1 Node 2 -------------- ---------------- getfacl dir1 getfacl dir1 <-- this is OK setfacl -m u:user1:rwX dir1 getfacl dir1 <-- see the change for user1 getfacl dir1 <-- can't see change for user1 Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> --- fs/ocfs2/dlmglue.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 50a863fc1779..207ec61569ea 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3933,7 +3933,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, oi = OCFS2_I(inode); oi->ip_dir_lock_gen++; mlog(0, "generation: %u\n", oi->ip_dir_lock_gen); - goto out; + goto out_forget; } if (!S_ISREG(inode->i_mode)) @@ -3964,6 +3964,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, filemap_fdatawait(mapping); } +out_forget: forget_all_cached_acls(inode); out: -- 2.21.0 (Apple Git-122.2)
WARNING: multiple messages have this Message-ID (diff)
From: Wengang Wang <wen.gang.wang@oracle.com> To: ocfs2-devel@oss.oracle.com Cc: stable@vger.kernel.org Subject: [Ocfs2-devel] [PATCH] ocfs2: drop acl cache for directories too Date: Thu, 2 Sep 2021 18:26:31 -0700 [thread overview] Message-ID: <20210903012631.6099-1-wen.gang.wang@oracle.com> (raw) ocfs2_data_convert_worker() is currently dropping any cached acl info for FILE before down-converting meta lock. It should also drop for DIRECTORY. Otherwise the second acl lookup returns the cached one (from VFS layer) which could be already stale. The problem we are seeing is that the acl changes on one node doesn't get refreshed on other nodes in the following case: Node 1 Node 2 -------------- ---------------- getfacl dir1 getfacl dir1 <-- this is OK setfacl -m u:user1:rwX dir1 getfacl dir1 <-- see the change for user1 getfacl dir1 <-- can't see change for user1 Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> --- fs/ocfs2/dlmglue.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 50a863fc1779..207ec61569ea 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3933,7 +3933,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, oi = OCFS2_I(inode); oi->ip_dir_lock_gen++; mlog(0, "generation: %u\n", oi->ip_dir_lock_gen); - goto out; + goto out_forget; } if (!S_ISREG(inode->i_mode)) @@ -3964,6 +3964,7 @@ static int ocfs2_data_convert_worker(struct ocfs2_lock_res *lockres, filemap_fdatawait(mapping); } +out_forget: forget_all_cached_acls(inode); out: -- 2.21.0 (Apple Git-122.2) _______________________________________________ Ocfs2-devel mailing list Ocfs2-devel@oss.oracle.com https://oss.oracle.com/mailman/listinfo/ocfs2-devel
next reply other threads:[~2021-09-03 1:27 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-03 1:26 Wengang Wang [this message] 2021-09-03 1:26 ` [Ocfs2-devel] [PATCH] ocfs2: drop acl cache for directories too Wengang Wang 2021-09-03 4:54 ` Greg KH 2021-09-03 4:54 ` [Ocfs2-devel] " Greg KH 2021-09-06 11:42 ` Joseph Qi 2021-09-17 16:46 ` Wengang Wang 2021-09-18 2:43 ` Joseph Qi 2021-09-20 15:36 ` Wengang Wang
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