redonkable/remarkable-linux
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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
Show stats Download patch file Download diff file Expand all files Collapse all files

29
fs/nfsd/nfs4recover.c
View file

@ -119,25 +119,12 @@ out:
return status; return status;
} }
static int static void
nfsd4_rec_fsync(struct dentry *dentry) nfsd4_sync_rec_dir(void)
{ {
struct file *filp; down(&rec_dir.dentry->d_inode->i_sem);
int status = nfs_ok; nfsd_sync_dir(rec_dir.dentry);
up(&rec_dir.dentry->d_inode->i_sem);
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;
} }
int int
@ -176,7 +163,7 @@ out_unlock:
up(&rec_dir.dentry->d_inode->i_sem); up(&rec_dir.dentry->d_inode->i_sem);
if (status == 0) { if (status == 0) {
clp->cl_firststate = 1; clp->cl_firststate = 1;
status = nfsd4_rec_fsync(rec_dir.dentry); nfsd4_sync_rec_dir();
} }
nfs4_reset_user(uid, gid); nfs4_reset_user(uid, gid);
dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status); 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); status = nfsd4_unlink_clid_dir(clp->cl_recdir, HEXDIR_LEN-1);
nfs4_reset_user(uid, gid); nfs4_reset_user(uid, gid);
if (status == 0) if (status == 0)
status = nfsd4_rec_fsync(rec_dir.dentry); nfsd4_sync_rec_dir();
if (status) if (status)
printk("NFSD: Failed to remove expired client state directory" printk("NFSD: Failed to remove expired client state directory"
" %.*s\n", HEXDIR_LEN, clp->cl_recdir); " %.*s\n", HEXDIR_LEN, clp->cl_recdir);
@ -362,7 +349,7 @@ nfsd4_recdir_purge_old(void) {
return; return;
status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old); status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old);
if (status == 0) if (status == 0)
status = nfsd4_rec_fsync(rec_dir.dentry); nfsd4_sync_rec_dir();
if (status) if (status)
printk("nfsd4: failed to purge old clients from recovery" printk("nfsd4: failed to purge old clients from recovery"
" directory %s\n", rec_dir.dentry->d_name.name); " 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); up(&inode->i_sem);
} }
static void void
nfsd_sync_dir(struct dentry *dp) nfsd_sync_dir(struct dentry *dp)
{ {
nfsd_dosync(NULL, dp, dp->d_inode->i_fop); 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_notify_change(struct inode *, struct iattr *);
int nfsd_permission(struct svc_export *, struct dentry *, int); 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) #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
#ifdef CONFIG_NFSD_V2_ACL #ifdef CONFIG_NFSD_V2_ACL