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NEWS: add section about udev locking
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17
NEWS
17
NEWS
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@ -1,5 +1,22 @@
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systemd System and Service Manager
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systemd System and Service Manager
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CHANGES WITH 214:
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* As an experimental feature, udev now tries to lock the
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disk device node (flock(LOCK_SH|LOCK_NB)) while it
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executes events for the disk or any of its partitions.
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Applications like partitioning programs can lock the
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disk device node (flock(LOCK_EX)) and claim temporary
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device ownership that way; udev will entirely skip all event
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handling for this disk and its partitions. If the disk
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was opened for writing, the close will trigger a partition
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table rescan in udev's "watch" facility, and if needed
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synthesize "change" events for the disk and all its partions.
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This is now unconditionally enabled, if it turns out to
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cause major problems, we might turn it on only for specific
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devices, or might need to disable it entirely. Device-mapper
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devices are excluded from this logic.
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CHANGES WITH 213:
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CHANGES WITH 213:
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* A new "systemd-timesyncd" daemon has been added for
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* A new "systemd-timesyncd" daemon has been added for
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@ -34,7 +34,7 @@ AC_USE_SYSTEM_EXTENSIONS
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AC_SYS_LARGEFILE
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AC_SYS_LARGEFILE
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AC_PREFIX_DEFAULT([/usr])
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AC_PREFIX_DEFAULT([/usr])
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AM_MAINTAINER_MODE([enable])
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AM_MAINTAINER_MODE([enable])
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AM_INIT_AUTOMAKE([foreign 1.11 -Wall -Wno-portability silent-rules tar-pax no-dist-gzip dist-xz subdir-objects check-news])
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AM_INIT_AUTOMAKE([foreign 1.11 -Wall -Wno-portability silent-rules tar-pax no-dist-gzip dist-xz subdir-objects])
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AM_SILENT_RULES([yes])
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AM_SILENT_RULES([yes])
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AC_CANONICAL_HOST
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AC_CANONICAL_HOST
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AC_DEFINE_UNQUOTED([CANONICAL_HOST], "$host", [Canonical host string.])
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AC_DEFINE_UNQUOTED([CANONICAL_HOST], "$host", [Canonical host string.])
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