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OpenCloudOS-Kernel
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NFS: Block new writes while syncing data in nfs_getattr() 

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2015-03-25 16:40:07 -04:00
parent 5bb89b4702
commit 8c18d76bcb
1 changed files with 2 additions and 0 deletions
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2
fs/nfs/inode.c
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@ -649,7 +649,9 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
trace_nfs_getattr_enter(inode); trace_nfs_getattr_enter(inode);
/* Flush out writes to the server in order to update c/mtime. */ /* Flush out writes to the server in order to update c/mtime. */
if (S_ISREG(inode->i_mode)) { if (S_ISREG(inode->i_mode)) {
mutex_lock(&inode->i_mutex);
err = nfs_sync_inode(inode); err = nfs_sync_inode(inode);
mutex_unlock(&inode->i_mutex);
if (err) if (err)
goto out; goto out;
} }