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Add activation/udev_sync to lvm.conf.

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This commit is contained in:
Alasdair Kergon 2009-08-04 15:36:13 +00:00
parent c48b10050a
commit cf8235e0aa
7 changed files with 22 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.51 -
================================
Add activation/udev_sync to lvm.conf.
Only change LV symlinks on ACTIVATE not PRELOAD.
Make lvconvert honour log mirror options combined with downconversion.
Allow LV suspend while --ignorelockingfailure is in force.

10
doc/example.conf
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@ -301,6 +301,16 @@ global {
}
activation {
# Set to 0 to disable udev syncronisation (if compiled into the binaries).
# Processes will not wait for notification from udev.
# They will continue irrespective of any possible udev processing
# in the background. You should only use this if udev is not running
# or has rules that ignore the devices LVM2 creates.
# The command line argument --nodevsync takes precedence over this setting.
# If set to 1 when udev is not running, and there are LVM2 processes
# waiting for udev, run 'dmsetup udevcomplete' manually to wake them up.
udev_sync = 1
# How to fill in missing stripes if activating an incomplete volume.
# Using "error" will make inaccessible parts of the device return
# I/O errors on access. You can instead use a device path, in which

2
lib/activate/dev_manager.c
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@ -455,6 +455,8 @@ struct dev_manager *dev_manager_create(struct cmd_context *cmd,
dm->target_state = NULL;
dm_udev_set_sync_support(cmd->current_settings.udev_sync);
return dm;
bad:

4
lib/commands/toolcontext.c
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@ -265,6 +265,10 @@ static int _process_config(struct cmd_context *cmd)
return 0;
}
cmd->default_settings.udev_sync = find_config_tree_int(cmd,
"activation/udev_sync",
DEFAULT_UDEV_SYNC);
cmd->stripe_filler = find_config_tree_str(cmd,
"activation/missing_stripe_filler",
DEFAULT_STRIPE_FILLER);

1
lib/commands/toolcontext.h
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@ -34,6 +34,7 @@ struct config_info {
int archive; /* should we archive ? */
int backup; /* should we backup ? */
int read_ahead; /* DM_READ_AHEAD_NONE or _AUTO */
int udev_sync;
int cache_vgmetadata;
const char *msg_prefix;
struct format_type *fmt;

1
lib/config/defaults.h
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@ -68,6 +68,7 @@
#define DEFAULT_PVMETADATACOPIES 1
#define DEFAULT_LABELSECTOR UINT64_C(1)
#define DEFAULT_READ_AHEAD "auto"
#define DEFAULT_UDEV_SYNC 0
#define DEFAULT_EXTENT_SIZE 4096 /* In KB */
#define DEFAULT_MAX_PV 0
#define DEFAULT_MAX_LV 0

3
tools/lvmcmdline.c
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@ -830,6 +830,9 @@ static int _get_settings(struct cmd_context *cmd)
} else
init_trust_cache(0);
if (arg_count(cmd, noudevsync_ARG))
cmd->current_settings.udev_sync = 0;
/* Handle synonyms */
if (!_merge_synonym(cmd, resizable_ARG, resizeable_ARG) ||
!_merge_synonym(cmd, allocation_ARG, allocatable_ARG) ||