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| author | Andrew Morton <akpm@osdl.org> | 2005-11-07 00:59:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:37 -0800 |
| commit | 7361f4d8ca65d23a18ba009b4484612183332c2f (patch) | |
| tree | 7e3dcf22f7d191bcbeb78eb633ae067a76163124 /include/linux/mm.h | |
| parent | bf8f972d3a1daf969cf44f64cc36d53bfd76441f (diff) | |
| download | linux-7361f4d8ca65d23a18ba009b4484612183332c2f.tar.gz linux-7361f4d8ca65d23a18ba009b4484612183332c2f.tar.bz2 linux-7361f4d8ca65d23a18ba009b4484612183332c2f.zip | |
[PATCH] readahead commentary
Add a few comments surrounding the generic readahead API.
Also convert some ulongs into pgoff_t: the identifier for PAGE_CACHE_SIZE
offsets into pagecache.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 5c1fb0a2e806..7b115feca4df 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -932,13 +932,13 @@ int write_one_page(struct page *page, int wait); * turning readahead off */ int do_page_cache_readahead(struct address_space *mapping, struct file *filp, - unsigned long offset, unsigned long nr_to_read); + pgoff_t offset, unsigned long nr_to_read); int force_page_cache_readahead(struct address_space *mapping, struct file *filp, - unsigned long offset, unsigned long nr_to_read); -unsigned long page_cache_readahead(struct address_space *mapping, + pgoff_t offset, unsigned long nr_to_read); +unsigned long page_cache_readahead(struct address_space *mapping, struct file_ra_state *ra, struct file *filp, - unsigned long offset, + pgoff_t offset, unsigned long size); void handle_ra_miss(struct address_space *mapping, struct file_ra_state *ra, pgoff_t offset); |