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Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used even without any config.

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This should be set by default! Normally we have "activation/udev_sync = 1"
in lvm.conf (example.conf.in). But if we use lvm2 without any config file
(or without a definition within '--config' option) the DEFAULT_UDEV_SYNC
is used instead. Together with verify_udev_operations=0 (when we rely on
udev fully), this can cause races as the node could be missing when needed.

(See also https://bugzilla.redhat.com/show_bug.cgi?id=723144)
This commit is contained in:
Peter Rajnoha 2011-08-02 10:49:57 +00:00
parent 3c614ef1c1
commit c212019f3a
2 changed files with 2 additions and 1 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.87 - Version 2.02.87 -
=============================== ===============================
Change DEFAULT_UDEV_SYNC to 1 so udev_sync is used even without any config.
Add systemd unit file to provide lvm2 monitoring. Add systemd unit file to provide lvm2 monitoring.
Compare also file size to detect changed config file. Compare also file size to detect changed config file.

2
lib/config/defaults.h
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@ -77,7 +77,7 @@
#define DEFAULT_LABELSECTOR UINT64_C(1) #define DEFAULT_LABELSECTOR UINT64_C(1)
#define DEFAULT_READ_AHEAD "auto" #define DEFAULT_READ_AHEAD "auto"
#define DEFAULT_UDEV_RULES 1 #define DEFAULT_UDEV_RULES 1
#define DEFAULT_UDEV_SYNC 0 #define DEFAULT_UDEV_SYNC 1
#define DEFAULT_VERIFY_UDEV_OPERATIONS 0 #define DEFAULT_VERIFY_UDEV_OPERATIONS 0
#define DEFAULT_ACTIVATION_CHECKS 0 #define DEFAULT_ACTIVATION_CHECKS 0
#define DEFAULT_EXTENT_SIZE 4096 /* In KB */ #define DEFAULT_EXTENT_SIZE 4096 /* In KB */