annotate auto/have @ 7669:52b34c3f89b4

Too large st_blocks values are now ignored (ticket #157). With XFS, using "allocsize=64m" mount option results in large preallocation being reported in the st_blocks as returned by fstat() till the file is closed. This in turn results in incorrect cache size calculations and wrong clearing based on max_size. To avoid too aggressive cache clearing on such volumes, st_blocks values which result in sizes larger than st_size and eight blocks (an arbitrary limit) are no longer trusted, and we use st_size instead. The ngx_de_fs_size() counterpart is intentionally not modified, as it is used on closed files and hence not affected by this problem.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 22 Jun 2020 18:02:59 +0300
parents d620f497c50f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 248
diff changeset
1
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 248
diff changeset
2 # Copyright (C) Igor Sysoev
4412
d620f497c50f Copyright updated.
Maxim Konovalov <maxim@nginx.com>
parents: 444
diff changeset
3 # Copyright (C) Nginx, Inc.
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents: 248
diff changeset
4
248
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
5
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
6 cat << END >> $NGX_AUTO_CONFIG_H
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
7
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
8 #ifndef $have
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
9 #define $have 1
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
10 #endif
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
11
e885208c518b nginx-0.0.2-2004-02-03-00:19:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
12 END