Messages in this thread Patch in this message | | | Date | Sun, 24 Apr 2005 00:40:10 +0200 (CEST) | From | Jesper Juhl <> | Subject | [PATCH] trivial little type correction in mm/filemap.c::wait_on_page_writeback_range |
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This patch changes the variable 'i' in mm/filemap.c::wait_on_page_writeback_range from 'unsigned int' to int. The only use of 'i' is in the for loop, and the array being indexed is PAGEVEC_SIZE in size (and with PAGEVEC_SIZE being 14, an int is fully sufficient) and in the loop itself 'i' is being compared to 'nr_pages' which is defined as 'int' at the top of the function. So, as far as I can see changing 'i' to int makes sense - it is more than large enough for what it's used for, it then matches the type it is compared against exactely and it avoids a signed vs unsigned comparison.
Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> ---
mm/filemap.c | 2 +- 1 files changed, 1 insertion(+), 1 deletion(-)
--- linux-2.6.12-rc2-mm3-orig/mm/filemap.c 2005-04-11 21:20:56.000000000 +0200 +++ linux-2.6.12-rc2-mm3/mm/filemap.c 2005-04-24 00:36:18.000000000 +0200 @@ -234,7 +234,7 @@ static int wait_on_page_writeback_range( (nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, PAGECACHE_TAG_WRITEBACK, min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1)) != 0) { - unsigned i; + int i; for (i = 0; i < nr_pages; i++) { struct page *page = pvec.pages[i];
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