• Jan Kara's avatar
    mm: implement find_get_pages_range_tag() · 72b045ae
    Jan Kara authored
    Patch series "Ranged pagevec tagged lookup", v3.
    
    In this series I provide a ranged variant of pagevec_lookup_tag() and
    use it in places where it makes sense.  This series removes some common
    code and it also has a potential for speeding up some operations
    similarly as for pagevec_lookup_range() (but for now I can think of only
    artificial cases where this happens).
    
    This patch (of 16):
    
    Implement a variant of find_get_pages_tag() that stops iterating at
    given index.  Lots of users of this function (through pagevec_lookup())
    actually want a range lookup and all of them are currently open-coding
    this.
    
    Also create corresponding pagevec_lookup_range_tag() function.
    
    Link: http://lkml.kernel.org/r/20171009151359.31984-2-jack@suse.czSigned-off-by: default avatarJan Kara <jack@suse.cz>
    Reviewed-by: default avatarDaniel Jordan <daniel.m.jordan@oracle.com>
    Cc: Bob Peterson <rpeterso@redhat.com>
    Cc: Chao Yu <yuchao0@huawei.com>
    Cc: David Howells <dhowells@redhat.com>
    Cc: David Sterba <dsterba@suse.com>
    Cc: Ilya Dryomov <idryomov@gmail.com>
    Cc: Jaegeuk Kim <jaegeuk@kernel.org>
    Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
    Cc: Steve French <sfrench@samba.org>
    Cc: "Theodore Ts'o" <tytso@mit.edu>
    Cc: "Yan, Zheng" <zyan@redhat.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    72b045ae
filemap.c 86.9 KB