[PATCH] nfsd4: fix sync'ing of recovery directory
We need to fsync the recovery directory after writing to it, but we weren't doing this correctly. (For example, we weren't taking the i_sem when calling ->fsync().) Just reuse the existing nfsd fsync code instead. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -119,25 +119,12 @@ out:
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return status;
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}
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static int
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nfsd4_rec_fsync(struct dentry *dentry)
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static void
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nfsd4_sync_rec_dir(void)
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{
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struct file *filp;
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int status = nfs_ok;
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dprintk("NFSD: nfs4_fsync_rec_dir\n");
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filp = dentry_open(dget(dentry), mntget(rec_dir.mnt), O_RDWR);
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if (IS_ERR(filp)) {
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status = PTR_ERR(filp);
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goto out;
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}
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if (filp->f_op && filp->f_op->fsync)
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status = filp->f_op->fsync(filp, filp->f_dentry, 0);
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fput(filp);
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out:
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if (status)
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printk("nfsd4: unable to sync recovery directory\n");
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return status;
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down(&rec_dir.dentry->d_inode->i_sem);
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nfsd_sync_dir(rec_dir.dentry);
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up(&rec_dir.dentry->d_inode->i_sem);
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}
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int
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@ -176,7 +163,7 @@ out_unlock:
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up(&rec_dir.dentry->d_inode->i_sem);
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if (status == 0) {
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clp->cl_firststate = 1;
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status = nfsd4_rec_fsync(rec_dir.dentry);
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nfsd4_sync_rec_dir();
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}
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nfs4_reset_user(uid, gid);
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dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status);
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@ -331,7 +318,7 @@ nfsd4_remove_clid_dir(struct nfs4_client *clp)
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status = nfsd4_unlink_clid_dir(clp->cl_recdir, HEXDIR_LEN-1);
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nfs4_reset_user(uid, gid);
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if (status == 0)
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status = nfsd4_rec_fsync(rec_dir.dentry);
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nfsd4_sync_rec_dir();
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if (status)
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printk("NFSD: Failed to remove expired client state directory"
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" %.*s\n", HEXDIR_LEN, clp->cl_recdir);
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@ -362,7 +349,7 @@ nfsd4_recdir_purge_old(void) {
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return;
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status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old);
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if (status == 0)
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status = nfsd4_rec_fsync(rec_dir.dentry);
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nfsd4_sync_rec_dir();
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if (status)
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printk("nfsd4: failed to purge old clients from recovery"
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" directory %s\n", rec_dir.dentry->d_name.name);
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@ -733,7 +733,7 @@ nfsd_sync(struct file *filp)
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up(&inode->i_sem);
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}
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static void
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void
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nfsd_sync_dir(struct dentry *dp)
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{
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nfsd_dosync(NULL, dp, dp->d_inode->i_fop);
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@ -124,6 +124,7 @@ int nfsd_statfs(struct svc_rqst *, struct svc_fh *,
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int nfsd_notify_change(struct inode *, struct iattr *);
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int nfsd_permission(struct svc_export *, struct dentry *, int);
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void nfsd_sync_dir(struct dentry *dp);
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#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
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#ifdef CONFIG_NFSD_V2_ACL
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