diff options
| -rw-r--r-- | fs/nfsd/vfs.c | 8 | ||||
| -rw-r--r-- | include/linux/nfsd/nfsfh.h | 11 |
2 files changed, 13 insertions, 6 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index c9e3b5a8fe07..443ebc52e382 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1114,7 +1114,7 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, */ if (!resfhp->fh_dentry) { /* called from nfsd_proc_mkdir, or possibly nfsd3_proc_create */ - fh_lock(fhp); + fh_lock_nested(fhp, I_MUTEX_PARENT); dchild = lookup_one_len(fname, dentry, flen); err = PTR_ERR(dchild); if (IS_ERR(dchild)) @@ -1240,7 +1240,7 @@ nfsd_create_v3(struct svc_rqst *rqstp, struct svc_fh *fhp, err = nfserr_notdir; if(!dirp->i_op || !dirp->i_op->lookup) goto out; - fh_lock(fhp); + fh_lock_nested(fhp, I_MUTEX_PARENT); /* * Compose the response file handle. @@ -1494,7 +1494,7 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp, if (isdotent(name, len)) goto out; - fh_lock(ffhp); + fh_lock_nested(ffhp, I_MUTEX_PARENT); ddir = ffhp->fh_dentry; dirp = ddir->d_inode; @@ -1644,7 +1644,7 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, if (err) goto out; - fh_lock(fhp); + fh_lock_nested(fhp, I_MUTEX_PARENT); dentry = fhp->fh_dentry; dirp = dentry->d_inode; diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h index 31a3cb617ce0..069257ea99a0 100644 --- a/include/linux/nfsd/nfsfh.h +++ b/include/linux/nfsd/nfsfh.h @@ -290,8 +290,9 @@ fill_post_wcc(struct svc_fh *fhp) * vfs.c:nfsd_rename as it needs to grab 2 i_mutex's at once * so, any changes here should be reflected there. */ + static inline void -fh_lock(struct svc_fh *fhp) +fh_lock_nested(struct svc_fh *fhp, unsigned int subclass) { struct dentry *dentry = fhp->fh_dentry; struct inode *inode; @@ -310,11 +311,17 @@ fh_lock(struct svc_fh *fhp) } inode = dentry->d_inode; - mutex_lock(&inode->i_mutex); + mutex_lock_nested(&inode->i_mutex, subclass); fill_pre_wcc(fhp); fhp->fh_locked = 1; } +static inline void +fh_lock(struct svc_fh *fhp) +{ + fh_lock_nested(fhp, I_MUTEX_NORMAL); +} + /* * Unlock a file handle/inode */ |