diff options
Diffstat (limited to 'master/debian/partition_performance.patch')
| -rw-r--r-- | master/debian/partition_performance.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/master/debian/partition_performance.patch b/master/debian/partition_performance.patch new file mode 100644 index 0000000..79fb453 --- /dev/null +++ b/master/debian/partition_performance.patch @@ -0,0 +1,36 @@ +Description: Give up scanning partitions after ten consecutive open failures + Scanning all the way up to 10000 is excessive and can cause serious + performance problems in some configurations. +Author: Colin Watson <cjwatson@ubuntu.com> +Bug-Ubuntu: https://bugs.launchpad.net/bugs/787461 +Forwarded: yes +Applied-Upstream: http://bazaar.launchpad.net/~vcs-imports/grub/grub2-bzr/revision/3320 +Last-Update: 2011-05-27 + +Index: b/grub-core/kern/emu/hostdisk.c +=================================================================== +--- a/grub-core/kern/emu/hostdisk.c ++++ b/grub-core/kern/emu/hostdisk.c +@@ -564,6 +564,7 @@ + int i; + char real_dev[PATH_MAX]; + struct linux_partition_cache *cache; ++ int missing = 0; + + strcpy(real_dev, dev); + +@@ -602,7 +603,13 @@ + + fd = open (real_dev, O_RDONLY); + if (fd == -1) +- continue; ++ { ++ if (missing++ < 10) ++ continue; ++ else ++ return 0; ++ } ++ missing = 0; + close (fd); + + start = find_partition_start (real_dev); |