Cc: Linux Filesystems <linux-fsdevel@xxxxxxxxxxxxxxx>
Signed-off-by: Nick Piggin <npiggin@xxxxxxx>
fs/smbfs/file.c | 34 +++++++++++++++++++++++++---------
1 file changed, 25 insertions(+), 9 deletions(-)
Index: linux-2.6/fs/smbfs/file.c
===================================================================
--- linux-2.6.orig/fs/smbfs/file.c
+++ linux-2.6/fs/smbfs/file.c
@@ -290,29 +290,45 @@ out:
* If the writer ends up delaying the write, the writer needs to
* increment the page use counts until he is done with the page.
*/
-static int smb_prepare_write(struct file *file, struct page *page,
- unsigned offset, unsigned to)
-{
+static int smb_write_begin(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned flags,
+ struct page **pagep, void **fsdata)
+{
+ pgoff_t index = pos >> PAGE_CACHE_SHIFT;
+ *pagep = __grab_cache_page(mapping, index);
+ if (!*pagep)
+ return -ENOMEM;
return 0;
}
-static int smb_commit_write(struct file *file, struct page *page,
- unsigned offset, unsigned to)
+static int smb_write_end(struct file *file, struct address_space *mapping,
+ loff_t pos, unsigned len, unsigned copied,
+ struct page *page, void *fsdata)
{
int status;
+ unsigned offset = pos & (PAGE_CACHE_SIZE - 1);
- status = -EFAULT;
lock_kernel();
- status = smb_updatepage(file, page, offset, to-offset);
+ status = smb_updatepage(file, page, offset, copied);
unlock_kernel();
+
+ if (!status) {
+ if (!PageUptodate(page) && copied == PAGE_CACHE_SIZE)
+ SetPageUptodate(page);
+ status = copied;
+ }
+
+ unlock_page(page);
+ page_cache_release(page);
+
return status;
}
const struct address_space_operations smb_file_aops = {
.readpage = smb_readpage,
.writepage = smb_writepage,
- .prepare_write = smb_prepare_write,
- .commit_write = smb_commit_write
+ .write_begin = smb_write_begin,
+ .write_end = smb_write_end,
};
/*
--
-
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