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[PATCH] msync(): use do_fsync()

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No need to duplicate all that code.

Cc: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2006-03-24 03:18:15 -08:00 committed by Linus Torvalds
parent 18e79b40ed
commit 8f2e9f157a
1 changed files with 2 additions and 15 deletions
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17
mm/msync.c
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@ -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)