* [PATCH] nfs: drop acl cache in __nfs3_proc_setacls
@ 2019-02-20 7:29 yangerkun
2019-02-22 7:35 ` yangerkun
0 siblings, 1 reply; 4+ messages in thread
From: yangerkun @ 2019-02-20 7:29 UTC (permalink / raw)
To: trond.myklebust, anna.schumaker
Cc: houtao1, zhangxiaoxu5, yi.zhang, yangerkun, linux-nfs
Since server may call posix_acl_update_mode which can lead acl been
NULL. So,just drop acl cache after rpc_call_sync, and if anyone want to
use acl, they can get the correct acl by send a msg to server themselves.
This can fix xfstests generic/099 over nfsv3.
Signed-off-by: yangerkun <yangerkun@huawei.com>
---
fs/nfs/nfs3acl.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 9fce185..6c07ebc 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -222,8 +222,8 @@ static int __nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
switch (status) {
case 0:
status = nfs_refresh_inode(inode, fattr);
- set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
- set_cached_acl(inode, ACL_TYPE_DEFAULT, dfacl);
+ /* Sever may call posix_acl_update_mode */
+ forget_all_cached_acls(inode);
break;
case -EPFNOSUPPORT:
case -EPROTONOSUPPORT:
--
2.9.5
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] nfs: drop acl cache in __nfs3_proc_setacls
2019-02-20 7:29 [PATCH] nfs: drop acl cache in __nfs3_proc_setacls yangerkun
@ 2019-02-22 7:35 ` yangerkun
2019-02-22 13:51 ` Trond Myklebust
0 siblings, 1 reply; 4+ messages in thread
From: yangerkun @ 2019-02-22 7:35 UTC (permalink / raw)
To: trond.myklebust, anna.schumaker
Cc: houtao1, zhangxiaoxu5, yi.zhang, linux-nfs
Ping?
yangerkun wrote on 2019/2/20 15:29:
> Since server may call posix_acl_update_mode which can lead acl been
> NULL. So,just drop acl cache after rpc_call_sync, and if anyone want to
> use acl, they can get the correct acl by send a msg to server themselves.
> This can fix xfstests generic/099 over nfsv3.
>
> Signed-off-by: yangerkun <yangerkun@huawei.com>
> ---
> fs/nfs/nfs3acl.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
> index 9fce185..6c07ebc 100644
> --- a/fs/nfs/nfs3acl.c
> +++ b/fs/nfs/nfs3acl.c
> @@ -222,8 +222,8 @@ static int __nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
> switch (status) {
> case 0:
> status = nfs_refresh_inode(inode, fattr);
> - set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
> - set_cached_acl(inode, ACL_TYPE_DEFAULT, dfacl);
> + /* Sever may call posix_acl_update_mode */
> + forget_all_cached_acls(inode);
> break;
> case -EPFNOSUPPORT:
> case -EPROTONOSUPPORT:
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] nfs: drop acl cache in __nfs3_proc_setacls
2019-02-22 7:35 ` yangerkun
@ 2019-02-22 13:51 ` Trond Myklebust
2019-02-23 2:00 ` yangerkun
0 siblings, 1 reply; 4+ messages in thread
From: Trond Myklebust @ 2019-02-22 13:51 UTC (permalink / raw)
To: yangerkun, anna.schumaker; +Cc: yi.zhang, houtao1, linux-nfs, zhangxiaoxu5
Hi,
On Fri, 2019-02-22 at 15:35 +0800, yangerkun wrote:
> Ping?
>
> yangerkun wrote on 2019/2/20 15:29:
> > Since server may call posix_acl_update_mode which can lead acl been
> > NULL. So,just drop acl cache after rpc_call_sync, and if anyone
> > want to
> > use acl, they can get the correct acl by send a msg to server
> > themselves.
> > This can fix xfstests generic/099 over nfsv3.
> >
> > Signed-off-by: yangerkun <yangerkun@huawei.com>
> > ---
> > fs/nfs/nfs3acl.c | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
> > index 9fce185..6c07ebc 100644
> > --- a/fs/nfs/nfs3acl.c
> > +++ b/fs/nfs/nfs3acl.c
> > @@ -222,8 +222,8 @@ static int __nfs3_proc_setacls(struct inode
> > *inode, struct posix_acl *acl,
> > switch (status) {
> > case 0:
> > status = nfs_refresh_inode(inode, fattr);
> > - set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
> > - set_cached_acl(inode, ACL_TYPE_DEFAULT, dfacl);
> > + /* Sever may call posix_acl_update_mode */
> > + forget_all_cached_acls(inode);
> > break;
> > case -EPFNOSUPPORT:
> > case -EPROTONOSUPPORT:
> >
I've applied the following patch
http://git.linux-nfs.org/?p=trondmy/linux-nfs.git;a=commitdiff;h=ded52fbe7020a5696b0b0a0fdbf234e37bf16f94
in order to fix this issue.
The reason why I prefer that fix is that we're already calling
nfs_zap_acl_cache(inode) immediately before this switch statement, so
the call to 'forget_all_cached_acls()' appears redundant.
Thanks!
Trond
--
Trond Myklebust
Linux NFS client maintainer, Hammerspace
trond.myklebust@hammerspace.com
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] nfs: drop acl cache in __nfs3_proc_setacls
2019-02-22 13:51 ` Trond Myklebust
@ 2019-02-23 2:00 ` yangerkun
0 siblings, 0 replies; 4+ messages in thread
From: yangerkun @ 2019-02-23 2:00 UTC (permalink / raw)
To: Trond Myklebust, anna.schumaker
Cc: yi.zhang, houtao1, linux-nfs, zhangxiaoxu5
Trond Myklebust wrote on 2019/2/22 21:51:
> Hi,
>
> On Fri, 2019-02-22 at 15:35 +0800, yangerkun wrote:
>> Ping?
>>
>> yangerkun wrote on 2019/2/20 15:29:
>>> Since server may call posix_acl_update_mode which can lead acl been
>>> NULL. So,just drop acl cache after rpc_call_sync, and if anyone
>>> want to
>>> use acl, they can get the correct acl by send a msg to server
>>> themselves.
>>> This can fix xfstests generic/099 over nfsv3.
>>>
>>> Signed-off-by: yangerkun <yangerkun@huawei.com>
>>> ---
>>> fs/nfs/nfs3acl.c | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
>>> index 9fce185..6c07ebc 100644
>>> --- a/fs/nfs/nfs3acl.c
>>> +++ b/fs/nfs/nfs3acl.c
>>> @@ -222,8 +222,8 @@ static int __nfs3_proc_setacls(struct inode
>>> *inode, struct posix_acl *acl,
>>> switch (status) {
>>> case 0:
>>> status = nfs_refresh_inode(inode, fattr);
>>> - set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
>>> - set_cached_acl(inode, ACL_TYPE_DEFAULT, dfacl);
>>> + /* Sever may call posix_acl_update_mode */
>>> + forget_all_cached_acls(inode);
>>> break;
>>> case -EPFNOSUPPORT:
>>> case -EPROTONOSUPPORT:
>>>
>
> I've applied the following patch
> http://git.linux-nfs.org/?p=trondmy/linux-nfs.git;a=commitdiff;h=ded52fbe7020a5696b0b0a0fdbf234e37bf16f94
> in order to fix this issue.
>
> The reason why I prefer that fix is that we're already calling
> nfs_zap_acl_cache(inode) immediately before this switch statement, so
> the call to 'forget_all_cached_acls()' appears redundant.
>
> Thanks!
> Trond
>
Got it! Thanks a lot!
Kun.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2019-02-20 7:29 [PATCH] nfs: drop acl cache in __nfs3_proc_setacls yangerkun
2019-02-22 7:35 ` yangerkun
2019-02-22 13:51 ` Trond Myklebust
2019-02-23 2:00 ` yangerkun
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