diff options
| -rw-r--r-- | fs/nfs/file.c | 12 | ||||
| -rw-r--r-- | fs/nfs/inode.c | 44 | ||||
| -rw-r--r-- | include/linux/nfs_fs.h | 1 |
3 files changed, 39 insertions, 18 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c index a606708..4043685 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -333,9 +333,15 @@ nfs_file_write(struct kiocb *iocb, const char __user *buf, size_t count, loff_t result = -EBUSY; if (IS_SWAPFILE(inode)) goto out_swapfile; - result = nfs_revalidate_inode(NFS_SERVER(inode), inode); - if (result) - goto out; + /* + * O_APPEND implies that we must revalidate the file length. + */ + if (iocb->ki_filp->f_flags & O_APPEND) { + result = nfs_revalidate_file_size(inode, iocb->ki_filp); + if (result) + goto out; + } else + nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping); result = count; if (!count) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index b2d1675..a3922f4 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1062,21 +1062,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) if (verifier == nfsi->cache_change_attribute) nfsi->flags &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME); /* Do the page cache invalidation */ - if (flags & NFS_INO_INVALID_DATA) { - if (S_ISREG(inode->i_mode)) { - if (filemap_fdatawrite(inode->i_mapping) == 0) - filemap_fdatawait(inode->i_mapping); - nfs_wb_all(inode); - } - nfsi->flags &= ~NFS_INO_INVALID_DATA; - invalidate_inode_pages2(inode->i_mapping); - memset(NFS_COOKIEVERF(inode), 0, sizeof(NFS_COOKIEVERF(inode))); - dfprintk(PAGECACHE, "NFS: (%s/%Ld) data cache invalidated\n", - inode->i_sb->s_id, - (long long)NFS_FILEID(inode)); - /* This ensures we revalidate dentries */ - nfsi->cache_change_attribute++; - } + nfs_revalidate_mapping(inode, inode->i_mapping); if (flags & NFS_INO_INVALID_ACL) nfs_zap_acl_cache(inode); dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n", @@ -1116,6 +1102,34 @@ int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) } /** + * nfs_revalidate_mapping - Revalidate the pagecache + * @inode - pointer to host inode + * @mapping - pointer to mapping + */ +void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping) +{ + struct nfs_inode *nfsi = NFS_I(inode); + + if (nfsi->flags & NFS_INO_INVALID_DATA) { + if (S_ISREG(inode->i_mode)) { + if (filemap_fdatawrite(mapping) == 0) + filemap_fdatawait(mapping); + nfs_wb_all(inode); + } + invalidate_inode_pages2(mapping); + nfsi->flags &= ~NFS_INO_INVALID_DATA; + if (S_ISDIR(inode->i_mode)) { + memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf)); + /* This ensures we revalidate child dentries */ + nfsi->cache_change_attribute++; + } + dfprintk(PAGECACHE, "NFS: (%s/%Ld) data cache invalidated\n", + inode->i_sb->s_id, + (long long)NFS_FILEID(inode)); + } +} + +/** * nfs_begin_data_update * @inode - pointer to inode * Declare that a set of operations will update file data on the server diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 211266c..443103c 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -289,6 +289,7 @@ extern int nfs_release(struct inode *, struct file *); extern int nfs_attribute_timeout(struct inode *inode); extern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode); extern int __nfs_revalidate_inode(struct nfs_server *, struct inode *); +extern void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping); extern int nfs_setattr(struct dentry *, struct iattr *); extern void nfs_begin_attr_update(struct inode *); extern void nfs_end_attr_update(struct inode *); |