Commit 8f2e9f15 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

[PATCH] msync(): use do_fsync() 



No need to duplicate all that code.

Cc: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 18e79b40

mm/msync.c

+2 −15
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
 */

#include <linux/slab.h>

#include <linux/pagemap.h>

#include <linux/fs.h>

#include <linux/mm.h>

#include <linux/mman.h>

#include <linux/hugetlb.h>
@@ -214,23 +215,9 @@ asmlinkage long sys_msync(unsigned long start, size_t len, int flags) 
			vma = find_vma(current->mm, start);

		} else if ((flags & MS_SYNC) && file &&

				(vma->vm_flags & VM_SHARED)) {

			struct address_space *mapping;

			int err;



			get_file(file);

			up_read(&current->mm->mmap_sem);

			mapping = file->f_mapping;

			error = filemap_fdatawrite(mapping);

			if (file->f_op && file->f_op->fsync) {

				mutex_lock(&mapping->host->i_mutex);

				err = file->f_op->fsync(file,file->f_dentry,1);

				mutex_unlock(&mapping->host->i_mutex);

				if (err && !error)

					error = err;

			}

			err = filemap_fdatawait(mapping);

			if (err && !error)

				error = err;

			error = do_fsync(file, 0);

			fput(file);

			down_read(&current->mm->mmap_sem);

			if (error)