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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 11:28:58 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 11:28:58 +0800 |
| commit | df2071bd081408318d659cd14a9cf6ff23d874c9 (patch) | |
| tree | b31291b5fd4b9f84c629833afbfaa8d431857475 /mm/readahead.c | |
| parent | 97e3d94aac1c3e95bd04d1b186479a4df3663ab8 (diff) | |
| parent | be1066bbcd443a65df312fdecea7e4959adedb45 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'mm/readahead.c')
| -rw-r--r-- | mm/readahead.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/readahead.c b/mm/readahead.c index 033bc135a41..dfa9a1a03a1 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/fs.h> +#include <linux/gfp.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/blkdev.h> @@ -501,6 +502,12 @@ void page_cache_sync_readahead(struct address_space *mapping, if (!ra->ra_pages) return; + /* be dumb */ + if (filp && (filp->f_mode & FMODE_RANDOM)) { + force_page_cache_readahead(mapping, filp, offset, req_size); + return; + } + /* do read-ahead */ ondemand_readahead(mapping, ra, filp, false, offset, req_size); } |