Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-04 12:12:05 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

readahead: drop dead code in page_cache_ra_order()

Browse Source 
page_cache_ra_order() scales folio order down so that is fully fits within
readahead window.  Thus the code handling the case where we walked past
the readahead window is a dead code.  Remove it.

Link: https://lkml.kernel.org/r/20240625101909.12234-6-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Tested-by: Zhang Peng <zhangpengpeng0808@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Jan Kara 2024-06-25 12:18:56 +02:00 committed by Andrew Morton
parent bb82ac31dd
commit 8eaf93ac70
1 changed files with 0 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
mm/readahead.c
View File

@ -525,11 +525,6 @@ void page_cache_ra_order(struct readahead_control *ractl,
index += 1UL << order;
}
if (index > limit) {
ra->size += index - limit - 1;
ra->async_size += index - limit - 1;
}
read_pages(ractl);
filemap_invalidate_unlock_shared(mapping);
memalloc_nofs_restore(nofs);