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[PATCH] nfsd4: fix sync'ing of recovery directory

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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>
This commit is contained in:
NeilBrown 2005-07-07 17:59:11 -07:00 committed by Linus Torvalds
parent 463090294e
commit a6ccbbb886
3 changed files with 10 additions and 22 deletions
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29
fs/nfsd/nfs4recover.c
View File

@ -119,25 +119,12 @@ nfs4_make_rec_clidname(char *dname, struct xdr_netobj *clname)
return status;
}
static int
nfsd4_rec_fsync(struct dentry *dentry)
static void
nfsd4_sync_rec_dir(void)
{
struct file *filp;
int status = nfs_ok;
dprintk("NFSD: nfs4_fsync_rec_dir\n");
filp = dentry_open(dget(dentry), mntget(rec_dir.mnt), O_RDWR);
if (IS_ERR(filp)) {
status = PTR_ERR(filp);
goto out;
}
if (filp->f_op && filp->f_op->fsync)
status = filp->f_op->fsync(filp, filp->f_dentry, 0);
fput(filp);
out:
if (status)
printk("nfsd4: unable to sync recovery directory\n");
return status;
down(&rec_dir.dentry->d_inode->i_sem);
nfsd_sync_dir(rec_dir.dentry);
up(&rec_dir.dentry->d_inode->i_sem);
}
int
@ -176,7 +163,7 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
up(&rec_dir.dentry->d_inode->i_sem);
if (status == 0) {
clp->cl_firststate = 1;
status = nfsd4_rec_fsync(rec_dir.dentry);
nfsd4_sync_rec_dir();
}
nfs4_reset_user(uid, gid);
dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status);
@ -331,7 +318,7 @@ nfsd4_remove_clid_dir(struct nfs4_client *clp)
status = nfsd4_unlink_clid_dir(clp->cl_recdir, HEXDIR_LEN-1);
nfs4_reset_user(uid, gid);
if (status == 0)
status = nfsd4_rec_fsync(rec_dir.dentry);
nfsd4_sync_rec_dir();
if (status)
printk("NFSD: Failed to remove expired client state directory"
" %.*s\n", HEXDIR_LEN, clp->cl_recdir);
@ -362,7 +349,7 @@ nfsd4_recdir_purge_old(void) {
return;
status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old);
if (status == 0)
status = nfsd4_rec_fsync(rec_dir.dentry);
nfsd4_sync_rec_dir();
if (status)
printk("nfsd4: failed to purge old clients from recovery"
" directory %s\n", rec_dir.dentry->d_name.name);

2
fs/nfsd/vfs.c
View File

@ -733,7 +733,7 @@ nfsd_sync(struct file *filp)
up(&inode->i_sem);
}
static void
void
nfsd_sync_dir(struct dentry *dp)
{
nfsd_dosync(NULL, dp, dp->d_inode->i_fop);

1
include/linux/nfsd/nfsd.h
View File

@ -124,6 +124,7 @@ int nfsd_statfs(struct svc_rqst *, struct svc_fh *,
int nfsd_notify_change(struct inode *, struct iattr *);
int nfsd_permission(struct svc_export *, struct dentry *, int);
void nfsd_sync_dir(struct dentry *dp);
#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
#ifdef CONFIG_NFSD_V2_ACL