From: Miklos Szeredi <mszeredi@redhat.com>
To: linux-fsdevel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
David Howells <dhowells@redhat.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Andreas Dilger <adilger@dilger.ca>,
Florian Weimer <fw@deneb.enyo.de>,
Amir Goldstein <amir73il@gmail.com>,
Mike Marshall <hubcap@omnibond.com>
Subject: [PATCH v2 1/5] orangefs: fix request_mask misuse
Date: Fri, 19 Oct 2018 14:20:45 +0200 [thread overview]
Message-ID: <20181019122049.27121-1-mszeredi@redhat.com> (raw)
Orangefs only handles STATX_BASIC_STATS in its getattr implementation, so
mask off all other flags. Not doing so results in statx(2) forcing a
refresh of cached attributes on any other requested flag (i.e. STATX_BTIME
currently) due to the following test in orangefs_inode_getattr():
(request_mask & orangefs_inode->getattr_mask) == request_mask
Also clean up gratuitous uses of STATX_ALL.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Martin Brandenburg <martin@omnibond.com>
Cc: Mike Marshall <hubcap@omnibond.com>
---
fs/orangefs/inode.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 31932879b716..bd7f15a831dc 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -256,7 +256,8 @@ int orangefs_getattr(const struct path *path, struct kstat *stat,
"orangefs_getattr: called on %pd\n",
path->dentry);
- ret = orangefs_inode_getattr(inode, 0, 0, request_mask);
+ ret = orangefs_inode_getattr(inode, 0, 0,
+ request_mask & STATX_BASIC_STATS);
if (ret == 0) {
generic_fillattr(inode, stat);
@@ -408,7 +409,7 @@ struct inode *orangefs_iget(struct super_block *sb,
if (!inode || !(inode->i_state & I_NEW))
return inode;
- error = orangefs_inode_getattr(inode, 1, 1, STATX_ALL);
+ error = orangefs_inode_getattr(inode, 1, 1, STATX_BASIC_STATS);
if (error) {
iget_failed(inode);
return ERR_PTR(error);
@@ -453,7 +454,7 @@ struct inode *orangefs_new_inode(struct super_block *sb, struct inode *dir,
orangefs_set_inode(inode, ref);
inode->i_ino = hash; /* needed for stat etc */
- error = orangefs_inode_getattr(inode, 1, 1, STATX_ALL);
+ error = orangefs_inode_getattr(inode, 1, 1, STATX_BASIC_STATS);
if (error)
goto out_iput;
--
2.14.3
next reply other threads:[~2018-10-19 12:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-19 12:20 Miklos Szeredi [this message]
2018-10-19 12:20 ` [PATCH v2 2/5] uapi: deprecate STATX_ALL Miklos Szeredi
2018-10-19 12:20 ` [PATCH v2 3/5] statx: add STATX_ATTRIBUTES flag Miklos Szeredi
2018-10-19 12:20 ` [PATCH v2 4/5] statx: don't clear STATX_ATIME on SB_RDONLY Miklos Szeredi
2018-10-19 12:20 ` [PATCH v2 5/5] nfs: don't clear STATX_ATIME from result_mask Miklos Szeredi
2018-10-19 15:52 ` Trond Myklebust
2018-10-19 17:46 ` Miklos Szeredi
2018-10-19 18:14 ` Trond Myklebust
2018-10-19 20:48 ` Miklos Szeredi
2018-10-20 17:46 ` Trond Myklebust
2018-11-05 22:29 ` Andreas Dilger
2018-10-19 14:27 ` [PATCH v2 1/5] orangefs: fix request_mask misuse Andreas Dilger
2018-10-19 15:35 ` [PATCH v2 2/5] uapi: deprecate STATX_ALL David Howells
2018-10-19 15:40 ` Miklos Szeredi
2018-10-19 15:47 ` David Howells
2018-10-19 17:30 ` Miklos Szeredi
2018-10-19 15:36 ` [PATCH v2 3/5] statx: add STATX_ATTRIBUTES flag David Howells
2018-10-19 15:40 ` [PATCH v2 4/5] statx: don't clear STATX_ATIME on SB_RDONLY David Howells
2018-10-19 15:44 ` [PATCH v2 5/5] nfs: don't clear STATX_ATIME from result_mask David Howells
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