Attachment 51778 Details for Bug 41336 – patch to read /usr last

[patch] patch to read /usr last

0001-readahead-read-usr-files-last-for-rotational-media-s.patch (text/plain), 1.74 KB, created by Paolo Bonzini on 2011-09-29 14:02:28 UTC

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Creator: Paolo Bonzini

Created: 2011-09-29 14:02:28 UTC

Size: 1.74 KB

patch

obsolete

>From 9b06a0b40cdab44246d814bdd24e22620a9a5b56 Mon Sep 17 00:00:00 2001
>From: Paolo Bonzini <pbonzini@redhat.com>
>Date: Thu, 29 Sep 2011 23:00:11 +0200
>Subject: [PATCH] readahead: read /usr files last for rotational media, skip
> /var
>
>---
> src/readahead-collect.c |    8 ++++++++
> 1 files changed, 8 insertions(+), 0 deletions(-)
>
>diff --git a/src/readahead-collect.c b/src/readahead-collect.c
>index eac11e7..ffa1dae 100644
>--- a/src/readahead-collect.c
>+++ b/src/readahead-collect.c
>@@ -197,6 +197,7 @@ static unsigned long fd_first_block(int fd) {
> struct item {
>         const char *path;
>         unsigned long block;
>+        int group;
> };
> 
> static int qsort_compare(const void *a, const void *b) {
>@@ -205,6 +206,11 @@ static int qsort_compare(const void *a, const void *b) {
>         i = a;
>         j = b;
> 
>+        if (i->group < j->group)
>+                return -1;
>+        if (i->group > j->group)
>+                return 1;
>+
>         if (i->block < j->block)
>                 return -1;
>         if (i->block > j->block)
>@@ -418,6 +424,7 @@ static int collect(const char *root) {
> 
>                         if ((k = readlink_malloc(fn, &p)) >= 0) {
>                                 if (startswith(p, "/tmp") ||
>+                                    startswith(p, "/var") ||
>                                     endswith(p, " (deleted)") ||
>                                     hashmap_get(files, p))
>                                         /* Not interesting, or
>@@ -502,6 +509,7 @@ done:
>                 HASHMAP_FOREACH_KEY(q, p, files, i) {
>                         j->path = p;
>                         j->block = PTR_TO_SECTOR(q);
>+                        j->group = startswith(p, "/usr") ? 1 : 0;
>                         j++;
>                 }
> 
>-- 
>1.7.6
>

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