From 4ff79bc7098fab71e5957d48d31d2036c234e506 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 2 Mar 2016 17:35:54 +0100 Subject: [PATCH] nfs: remove nfs4_file_fsync The only difference to nfs_file_fsync is the call to pnfs_sync_inode. But pnfs_sync_inode is just an inline that calls a pNFS layout driver method if CONFIG_PNFS is designed, and thus can be called just fine from the core NFS module. Signed-off-by: Christoph Hellwig Signed-off-by: Trond Myklebust --- fs/nfs/file.c | 8 +++++--- fs/nfs/internal.h | 2 +- fs/nfs/nfs4file.c | 33 +-------------------------------- 3 files changed, 7 insertions(+), 36 deletions(-) diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 748bb813b8ec..cdf862188618 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -233,7 +233,7 @@ EXPORT_SYMBOL_GPL(nfs_file_mmap); * nfs_file_write() that a write error occurred, and hence cause it to * fall back to doing a synchronous write. */ -int +static int nfs_file_fsync_commit(struct file *file, loff_t start, loff_t end, int datasync) { struct nfs_open_context *ctx = nfs_file_open_context(file); @@ -263,9 +263,8 @@ nfs_file_fsync_commit(struct file *file, loff_t start, loff_t end, int datasync) out: return ret; } -EXPORT_SYMBOL_GPL(nfs_file_fsync_commit); -static int +int nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) { int ret; @@ -280,6 +279,8 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) break; inode_lock(inode); ret = nfs_file_fsync_commit(file, start, end, datasync); + if (!ret) + ret = pnfs_sync_inode(inode, !!datasync); inode_unlock(inode); /* * If nfs_file_fsync_commit detected a server reboot, then @@ -293,6 +294,7 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) trace_nfs_fsync_exit(inode, ret); return ret; } +EXPORT_SYMBOL_GPL(nfs_file_fsync); /* * Decide whether a read/modify/write cycle may be more efficient diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 9a547aa3ec8e..c41c5f5baf03 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -358,7 +358,7 @@ int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t); int nfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); /* file.c */ -int nfs_file_fsync_commit(struct file *, loff_t, loff_t, int); +int nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync); loff_t nfs_file_llseek(struct file *, loff_t, int); ssize_t nfs_file_read(struct kiocb *, struct iov_iter *); ssize_t nfs_file_splice_read(struct file *, loff_t *, struct pipe_inode_info *, diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 57ca1c8039c1..22c35abbee9d 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -128,37 +128,6 @@ nfs4_file_flush(struct file *file, fl_owner_t id) return vfs_fsync(file, 0); } -static int -nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) -{ - int ret; - struct inode *inode = file_inode(file); - - trace_nfs_fsync_enter(inode); - - nfs_inode_dio_wait(inode); - do { - ret = filemap_write_and_wait_range(inode->i_mapping, start, end); - if (ret != 0) - break; - inode_lock(inode); - ret = nfs_file_fsync_commit(file, start, end, datasync); - if (!ret) - ret = pnfs_sync_inode(inode, !!datasync); - inode_unlock(inode); - /* - * If nfs_file_fsync_commit detected a server reboot, then - * resend all dirty pages that might have been covered by - * the NFS_CONTEXT_RESEND_WRITES flag - */ - start = 0; - end = LLONG_MAX; - } while (ret == -EAGAIN); - - trace_nfs_fsync_exit(inode, ret); - return ret; -} - #ifdef CONFIG_NFS_V4_2 static loff_t nfs4_file_llseek(struct file *filep, loff_t offset, int whence) { @@ -266,7 +235,7 @@ const struct file_operations nfs4_file_operations = { .open = nfs4_file_open, .flush = nfs4_file_flush, .release = nfs_file_release, - .fsync = nfs4_file_fsync, + .fsync = nfs_file_fsync, .lock = nfs_lock, .flock = nfs_flock, .splice_read = nfs_file_splice_read,