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x86, perf, bts, mm: Delete the never used BTS-ptrace code
[safe/jmp/linux-2.6]
/
mm
/
readahead.c
diff --git
a/mm/readahead.c
b/mm/readahead.c
index
033bc13
..
337b20e
100644
(file)
--- a/
mm/readahead.c
+++ b/
mm/readahead.c
@@
-501,6
+501,12
@@
void page_cache_sync_readahead(struct address_space *mapping,
if (!ra->ra_pages)
return;
+ /* be dumb */
+ if (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);
}