diff options
| -rw-r--r-- | fs/nfs/direct.c | 24 | ||||
| -rw-r--r-- | fs/nfs/file.c | 23 | ||||
| -rw-r--r-- | fs/nfs/inode.c | 28 | ||||
| -rw-r--r-- | include/linux/nfs_fs.h | 1 |
4 files changed, 34 insertions, 42 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index b497c71..0792288 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -678,15 +678,9 @@ nfs_file_direct_read(struct kiocb *iocb, char __user *buf, size_t count, loff_t if (!count) goto out; - if (mapping->nrpages) { - retval = filemap_fdatawrite(mapping); - if (retval == 0) - retval = nfs_wb_all(inode); - if (retval == 0) - retval = filemap_fdatawait(mapping); - if (retval) - goto out; - } + retval = nfs_sync_mapping(mapping); + if (retval) + goto out; retval = nfs_direct_read(inode, ctx, &iov, pos, 1); if (retval > 0) @@ -764,15 +758,9 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count, if (!count) goto out; - if (mapping->nrpages) { - retval = filemap_fdatawrite(mapping); - if (retval == 0) - retval = nfs_wb_all(inode); - if (retval == 0) - retval = filemap_fdatawait(mapping); - if (retval) - goto out; - } + retval = nfs_sync_mapping(mapping); + if (retval) + goto out; retval = nfs_direct_write(inode, ctx, &iov, pos, 1); if (mapping->nrpages) diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 57d3e77..eb5cd4c 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -433,11 +433,7 @@ static int do_unlk(struct file *filp, int cmd, struct file_lock *fl) * Flush all pending writes before doing anything * with locks.. */ - filemap_fdatawrite(filp->f_mapping); - down(&inode->i_sem); - nfs_wb_all(inode); - up(&inode->i_sem); - filemap_fdatawait(filp->f_mapping); + nfs_sync_mapping(filp->f_mapping); /* NOTE: special case * If we're signalled while cleaning up locks on process exit, we @@ -465,15 +461,8 @@ static int do_setlk(struct file *filp, int cmd, struct file_lock *fl) * Flush all pending writes before doing anything * with locks.. */ - status = filemap_fdatawrite(filp->f_mapping); - if (status == 0) { - down(&inode->i_sem); - status = nfs_wb_all(inode); - up(&inode->i_sem); - if (status == 0) - status = filemap_fdatawait(filp->f_mapping); - } - if (status < 0) + status = nfs_sync_mapping(filp->f_mapping); + if (status != 0) goto out; lock_kernel(); @@ -497,11 +486,7 @@ static int do_setlk(struct file *filp, int cmd, struct file_lock *fl) * Make sure we clear the cache whenever we try to get the lock. * This makes locking act as a cache coherency point. */ - filemap_fdatawrite(filp->f_mapping); - down(&inode->i_sem); - nfs_wb_all(inode); /* we may have slept */ - up(&inode->i_sem); - filemap_fdatawait(filp->f_mapping); + nfs_sync_mapping(filp->f_mapping); nfs_zap_caches(inode); out: rpc_clnt_sigunmask(NFS_CLIENT(inode), &oldset); diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index afd75d0..432f41c 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -640,6 +640,27 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt) return 0; } +/** + * nfs_sync_mapping - helper to flush all mmapped dirty data to disk + */ +int nfs_sync_mapping(struct address_space *mapping) +{ + int ret; + + if (mapping->nrpages == 0) + return 0; + unmap_mapping_range(mapping, 0, 0, 0); + ret = filemap_fdatawrite(mapping); + if (ret != 0) + goto out; + ret = filemap_fdatawait(mapping); + if (ret != 0) + goto out; + ret = nfs_wb_all(mapping->host); +out: + return ret; +} + /* * Invalidate the local caches */ @@ -1179,11 +1200,8 @@ void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping) struct nfs_inode *nfsi = NFS_I(inode); if (nfsi->cache_validity & NFS_INO_INVALID_DATA) { - if (S_ISREG(inode->i_mode)) { - if (filemap_fdatawrite(mapping) == 0) - filemap_fdatawait(mapping); - nfs_wb_all(inode); - } + if (S_ISREG(inode->i_mode)) + nfs_sync_mapping(mapping); invalidate_inode_pages2(mapping); spin_lock(&inode->i_lock); diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 12787a9..2516ade 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -291,6 +291,7 @@ static inline int nfs_verify_change_attribute(struct inode *inode, unsigned long /* * linux/fs/nfs/inode.c */ +extern int nfs_sync_mapping(struct address_space *mapping); extern void nfs_zap_caches(struct inode *); extern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *, struct nfs_fattr *); |