diff options
| -rw-r--r-- | fs/nfs/inode.c | 33 | ||||
| -rw-r--r-- | include/linux/nfs_fs.h | 1 | ||||
| -rw-r--r-- | include/linux/nfs_xdr.h | 1 |
3 files changed, 28 insertions, 7 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index a82f0340744..c45bd52cc1d 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -64,6 +64,7 @@ static void nfs_clear_inode(struct inode *); static void nfs_umount_begin(struct super_block *); static int nfs_statfs(struct super_block *, struct kstatfs *); static int nfs_show_options(struct seq_file *, struct vfsmount *); +static void nfs_zap_acl_cache(struct inode *); static struct rpc_program nfs_program; @@ -153,6 +154,7 @@ nfs_clear_inode(struct inode *inode) nfs_wb_all(inode); BUG_ON (!list_empty(&nfsi->open_files)); + nfs_zap_acl_cache(inode); cred = nfsi->cache_access.cred; if (cred) put_rpccred(cred); @@ -587,9 +589,19 @@ nfs_zap_caches(struct inode *inode) memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode))); if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) - nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS; + nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; else - nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS; + nfsi->flags |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; +} + +static void nfs_zap_acl_cache(struct inode *inode) +{ + void (*clear_acl_cache)(struct inode *); + + clear_acl_cache = NFS_PROTO(inode)->clear_acl_cache; + if (clear_acl_cache != NULL) + clear_acl_cache(inode); + NFS_I(inode)->flags &= ~NFS_INO_INVALID_ACL; } /* @@ -789,7 +801,7 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) } } if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0) - NFS_FLAGS(inode) |= NFS_INO_INVALID_ACCESS; + NFS_FLAGS(inode) |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; nfs_end_data_update(inode); unlock_kernel(); return error; @@ -1033,6 +1045,8 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) /* This ensures we revalidate dentries */ nfsi->cache_change_attribute++; } + if (flags & NFS_INO_INVALID_ACL) + nfs_zap_acl_cache(inode); dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n", inode->i_sb->s_id, (long long)NFS_FILEID(inode)); @@ -1183,7 +1197,7 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr) if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) || inode->i_uid != fattr->uid || inode->i_gid != fattr->gid) - nfsi->flags |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS; + nfsi->flags |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; /* Has the link count changed? */ if (inode->i_nlink != fattr->nlink) @@ -1292,16 +1306,21 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign #endif nfsi->change_attr = fattr->change_attr; if (!data_unstable) - invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS; + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; } - memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime)); + /* If ctime has changed we should definitely clear access+acl caches */ + if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) { + if (!data_unstable) + invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime)); + } memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime)); if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) || inode->i_uid != fattr->uid || inode->i_gid != fattr->gid) - invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS; + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; inode->i_mode = fattr->mode; inode->i_nlink = fattr->nlink; diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 0b01b96337f..140bdf489f7 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -189,6 +189,7 @@ struct nfs_inode { #define NFS_INO_INVALID_DATA 0x0010 /* cached data is invalid */ #define NFS_INO_INVALID_ATIME 0x0020 /* cached atime is invalid */ #define NFS_INO_INVALID_ACCESS 0x0040 /* cached access cred invalid */ +#define NFS_INO_INVALID_ACL 0x0080 /* cached acls are invalid */ static inline struct nfs_inode *NFS_I(struct inode *inode) { diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 5b45bafd9db..cf38db59f34 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -714,6 +714,7 @@ struct nfs_rpc_ops { int (*file_open) (struct inode *, struct file *); int (*file_release) (struct inode *, struct file *); int (*lock)(struct file *, int, struct file_lock *); + void (*clear_acl_cache)(struct inode *); }; /* |