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afs: use find_get_pages_range_tag() 

Use find_get_pages_range_tag() in afs_writepages_region() as we are
interested only in pages from given range.  Remove unnecessary code
after this conversion.

Link: http://lkml.kernel.org/r/20171009151359.31984-16-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2017-11-15 17:35:23 -08:00 committed by Linus Torvalds
parent 67fd707f46
commit aef6e415ee
1 changed files with 2 additions and 9 deletions
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11
fs/afs/write.c
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@ -497,20 +497,13 @@ static int afs_writepages_region(struct address_space *mapping,
_enter(",,%lx,%lx,", index, end);
do {
n = find_get_pages_tag(mapping, &index, PAGECACHE_TAG_DIRTY,
1, &page);
n = find_get_pages_range_tag(mapping, &index, end,
PAGECACHE_TAG_DIRTY, 1, &page);
if (!n)
break;
_debug("wback %lx", page->index);
if (page->index > end) {
*_next = index;
put_page(page);
_leave(" = 0 [%lx]", *_next);
return 0;
}
/* at this point we hold neither mapping->tree_lock nor lock on
* the page itself: the page may be truncated or invalidated
* (changing page->mapping to NULL), or even swizzled back from