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| author | Ross Zwisler | 2016-01-23 00:10:44 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2016-01-23 02:02:18 +0100 |
| commit | 7e7f774984cd88c45c18e7ffaf0256c3e9118043 (patch) | |
| tree | 661a5f505dee94f89e12e493f995bda19906cf67 /include/linux/pagemap.h | |
| parent | dax: support dirty DAX entries in radix tree (diff) | |
| download | kernel-qcow2-linux-7e7f774984cd88c45c18e7ffaf0256c3e9118043.tar.gz kernel-qcow2-linux-7e7f774984cd88c45c18e7ffaf0256c3e9118043.tar.xz kernel-qcow2-linux-7e7f774984cd88c45c18e7ffaf0256c3e9118043.zip | |
mm: add find_get_entries_tag()
Add find_get_entries_tag() to the family of functions that include
find_get_entries(), find_get_pages() and find_get_pages_tag(). This is
needed for DAX dirty page handling because we need a list of both page
offsets and radix tree entries ('indices' and 'entries' in this
function) that are marked with the PAGECACHE_TAG_TOWRITE tag.
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jeff Layton <jlayton@poochiereds.net>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/pagemap.h')
| -rw-r--r-- | include/linux/pagemap.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 4d08b6c33557..92395a0a7dc5 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -361,6 +361,9 @@ unsigned find_get_pages_contig(struct address_space *mapping, pgoff_t start, unsigned int nr_pages, struct page **pages); unsigned find_get_pages_tag(struct address_space *mapping, pgoff_t *index, int tag, unsigned int nr_pages, struct page **pages); +unsigned find_get_entries_tag(struct address_space *mapping, pgoff_t start, + int tag, unsigned int nr_entries, + struct page **entries, pgoff_t *indices); struct page *grab_cache_page_write_begin(struct address_space *mapping, pgoff_t index, unsigned flags); |