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| author | Fabian Frederick <fabf@skynet.be> | 2014-04-07 15:37:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-07 16:35:58 -0700 |
| commit | 29f175d125f0f3a9503af8a5596f93d714cceb08 (patch) | |
| tree | 442694afa182a6da0549ad00942047482df6bd7f /mm/internal.h | |
| parent | 55f67141a8927b2be3e51840da37b8a2320143ed (diff) | |
| download | lwn-29f175d125f0f3a9503af8a5596f93d714cceb08.tar.gz lwn-29f175d125f0f3a9503af8a5596f93d714cceb08.zip | |
mm/readahead.c: inline ra_submit
Commit f9acc8c7b35a ("readahead: sanify file_ra_state names") left
ra_submit with a single function call.
Move ra_submit to internal.h and inline it to save some stack. Thanks
to Andrew Morton for commenting different versions.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
| -rw-r--r-- | mm/internal.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h index 3e910000fda4..07b67361a40a 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -11,6 +11,7 @@ #ifndef __MM_INTERNAL_H #define __MM_INTERNAL_H +#include <linux/fs.h> #include <linux/mm.h> void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma, @@ -21,6 +22,20 @@ static inline void set_page_count(struct page *page, int v) atomic_set(&page->_count, v); } +extern int __do_page_cache_readahead(struct address_space *mapping, + struct file *filp, pgoff_t offset, unsigned long nr_to_read, + unsigned long lookahead_size); + +/* + * Submit IO for the read-ahead request in file_ra_state. + */ +static inline unsigned long ra_submit(struct file_ra_state *ra, + struct address_space *mapping, struct file *filp) +{ + return __do_page_cache_readahead(mapping, filp, + ra->start, ra->size, ra->async_size); +} + /* * Turn a non-refcounted page (->_count == 0) into refcounted with * a count of one. |