diff options
Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r-- | fs/nfs/inode.c | 54 |
1 files changed, 36 insertions, 18 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index d42dff6..f734562 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -133,6 +133,13 @@ void nfs_evict_inode(struct inode *inode) nfs_clear_inode(inode); } +int nfs_sync_inode(struct inode *inode) +{ + nfs_inode_dio_wait(inode); + return nfs_wb_all(inode); +} +EXPORT_SYMBOL_GPL(nfs_sync_inode); + /** * nfs_sync_mapping - helper to flush all mmapped dirty data to disk */ @@ -192,7 +199,6 @@ void nfs_zap_caches(struct inode *inode) nfs_zap_caches_locked(inode); spin_unlock(&inode->i_lock); } -EXPORT_SYMBOL_GPL(nfs_zap_caches); void nfs_zap_mapping(struct inode *inode, struct address_space *mapping) { @@ -495,7 +501,7 @@ EXPORT_SYMBOL_GPL(nfs_fhget); int nfs_setattr(struct dentry *dentry, struct iattr *attr) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); struct nfs_fattr *fattr; int error = -ENOMEM; @@ -525,10 +531,8 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) trace_nfs_setattr_enter(inode); /* Write all dirty data */ - if (S_ISREG(inode->i_mode)) { - nfs_inode_dio_wait(inode); - nfs_wb_all(inode); - } + if (S_ISREG(inode->i_mode)) + nfs_sync_inode(inode); fattr = nfs_alloc_fattr(); if (fattr == NULL) @@ -621,7 +625,7 @@ static void nfs_request_parent_use_readdirplus(struct dentry *dentry) struct dentry *parent; parent = dget_parent(dentry); - nfs_force_use_readdirplus(parent->d_inode); + nfs_force_use_readdirplus(d_inode(parent)); dput(parent); } @@ -637,15 +641,16 @@ static bool nfs_need_revalidate_inode(struct inode *inode) int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { - struct inode *inode = dentry->d_inode; + struct inode *inode = d_inode(dentry); int need_atime = NFS_I(inode)->cache_validity & NFS_INO_INVALID_ATIME; int err = 0; trace_nfs_getattr_enter(inode); /* Flush out writes to the server in order to update c/mtime. */ if (S_ISREG(inode->i_mode)) { - nfs_inode_dio_wait(inode); - err = filemap_write_and_wait(inode->i_mapping); + mutex_lock(&inode->i_mutex); + err = nfs_sync_inode(inode); + mutex_unlock(&inode->i_mutex); if (err) goto out; } @@ -708,7 +713,7 @@ static struct nfs_lock_context *__nfs_find_lock_context(struct nfs_open_context struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx) { struct nfs_lock_context *res, *new = NULL; - struct inode *inode = ctx->dentry->d_inode; + struct inode *inode = d_inode(ctx->dentry); spin_lock(&inode->i_lock); res = __nfs_find_lock_context(ctx); @@ -736,7 +741,7 @@ EXPORT_SYMBOL_GPL(nfs_get_lock_context); void nfs_put_lock_context(struct nfs_lock_context *l_ctx) { struct nfs_open_context *ctx = l_ctx->open_context; - struct inode *inode = ctx->dentry->d_inode; + struct inode *inode = d_inode(ctx->dentry); if (!atomic_dec_and_lock(&l_ctx->count, &inode->i_lock)) return; @@ -763,7 +768,7 @@ void nfs_close_context(struct nfs_open_context *ctx, int is_sync) return; if (!is_sync) return; - inode = ctx->dentry->d_inode; + inode = d_inode(ctx->dentry); if (!list_empty(&NFS_I(inode)->open_files)) return; server = NFS_SERVER(inode); @@ -810,7 +815,7 @@ EXPORT_SYMBOL_GPL(get_nfs_open_context); static void __put_nfs_open_context(struct nfs_open_context *ctx, int is_sync) { - struct inode *inode = ctx->dentry->d_inode; + struct inode *inode = d_inode(ctx->dentry); struct super_block *sb = ctx->dentry->d_sb; if (!list_empty(&ctx->list)) { @@ -842,7 +847,7 @@ EXPORT_SYMBOL_GPL(put_nfs_open_context); */ void nfs_inode_attach_open_context(struct nfs_open_context *ctx) { - struct inode *inode = ctx->dentry->d_inode; + struct inode *inode = d_inode(ctx->dentry); struct nfs_inode *nfsi = NFS_I(inode); spin_lock(&inode->i_lock); @@ -885,7 +890,7 @@ static void nfs_file_clear_open_context(struct file *filp) struct nfs_open_context *ctx = nfs_file_open_context(filp); if (ctx) { - struct inode *inode = ctx->dentry->d_inode; + struct inode *inode = d_inode(ctx->dentry); filp->private_data = NULL; spin_lock(&inode->i_lock); @@ -1588,6 +1593,19 @@ int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fa } EXPORT_SYMBOL_GPL(nfs_post_op_update_inode_force_wcc); + +static inline bool nfs_fileid_valid(struct nfs_inode *nfsi, + struct nfs_fattr *fattr) +{ + bool ret1 = true, ret2 = true; + + if (fattr->valid & NFS_ATTR_FATTR_FILEID) + ret1 = (nfsi->fileid == fattr->fileid); + if (fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) + ret2 = (nfsi->fileid == fattr->mounted_on_fileid); + return ret1 || ret2; +} + /* * Many nfs protocol calls return the new file attributes after * an operation. Here we update the inode to reflect the state @@ -1614,7 +1632,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) nfs_display_fhandle_hash(NFS_FH(inode)), atomic_read(&inode->i_count), fattr->valid); - if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid) { + if (!nfs_fileid_valid(nfsi, fattr)) { printk(KERN_ERR "NFS: server %s error: fileid changed\n" "fsid %s: expected fileid 0x%Lx, got 0x%Lx\n", NFS_SERVER(inode)->nfs_client->cl_hostname, @@ -1819,7 +1837,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) struct inode *nfs_alloc_inode(struct super_block *sb) { struct nfs_inode *nfsi; - nfsi = (struct nfs_inode *)kmem_cache_alloc(nfs_inode_cachep, GFP_KERNEL); + nfsi = kmem_cache_alloc(nfs_inode_cachep, GFP_KERNEL); if (!nfsi) return NULL; nfsi->flags = 0UL; |