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| author | Hugh Dickins <hughd@google.com> | 2011-07-25 17:12:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 20:57:10 -0700 |
| commit | 5e5358e7cf48aa079b8761a7d806ad536023745c (patch) | |
| tree | 8a0668541c8b356b46c32eea7f28a2f72259eef6 /mm/filemap.c | |
| parent | df077ac4687500e02a273a628057ff5ab17dc19f (diff) | |
| download | linux-5e5358e7cf48aa079b8761a7d806ad536023745c.tar.gz linux-5e5358e7cf48aa079b8761a7d806ad536023745c.tar.bz2 linux-5e5358e7cf48aa079b8761a7d806ad536023745c.zip | |
mm: cleanup descriptions of filler arg
The often-NULL data arg to read_cache_page() and read_mapping_page()
functions is misdescribed as "destination for read data": no, it's the
first arg to the filler function, often struct file * to ->readpage().
Satisfy checkpatch.pl on those filler prototypes, and tidy up the
declarations in linux/pagemap.h.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index f820e600f1ad..2780be4bd493 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1792,7 +1792,7 @@ EXPORT_SYMBOL(generic_file_readonly_mmap); static struct page *__read_cache_page(struct address_space *mapping, pgoff_t index, - int (*filler)(void *,struct page*), + int (*filler)(void *, struct page *), void *data, gfp_t gfp) { @@ -1823,7 +1823,7 @@ repeat: static struct page *do_read_cache_page(struct address_space *mapping, pgoff_t index, - int (*filler)(void *,struct page*), + int (*filler)(void *, struct page *), void *data, gfp_t gfp) @@ -1863,7 +1863,7 @@ out: * @mapping: the page's address_space * @index: the page index * @filler: function to perform the read - * @data: destination for read data + * @data: first arg to filler(data, page) function, often left as NULL * * Same as read_cache_page, but don't wait for page to become unlocked * after submitting it to the filler. @@ -1875,7 +1875,7 @@ out: */ struct page *read_cache_page_async(struct address_space *mapping, pgoff_t index, - int (*filler)(void *,struct page*), + int (*filler)(void *, struct page *), void *data) { return do_read_cache_page(mapping, index, filler, data, mapping_gfp_mask(mapping)); @@ -1923,7 +1923,7 @@ EXPORT_SYMBOL(read_cache_page_gfp); * @mapping: the page's address_space * @index: the page index * @filler: function to perform the read - * @data: destination for read data + * @data: first arg to filler(data, page) function, often left as NULL * * Read into the page cache. If a page already exists, and PageUptodate() is * not set, try to fill the page then wait for it to become unlocked. @@ -1932,7 +1932,7 @@ EXPORT_SYMBOL(read_cache_page_gfp); */ struct page *read_cache_page(struct address_space *mapping, pgoff_t index, - int (*filler)(void *,struct page*), + int (*filler)(void *, struct page *), void *data) { return wait_on_page_read(read_cache_page_async(mapping, index, filler, data)); |