Btrfs: disallow mutually exclusive admin operations from user mode

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Btrfs admin operations that are manually started from user mode
and that cannot be executed at the same time return -EINPROGRESS.
A common way to enter and leave this locked section is introduced
since it used to be specific to the balance operation.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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This commit is contained in:

Stefan Behrens 2012-11-05 17:54:08 +01:00 • committed by Josef Bacik

parent a2bff64025

commit 5ac00addc7

3 changed files with 40 additions and 17 deletions

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2

fs/btrfs/ctree.h

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53

fs/btrfs/ioctl.c

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2

fs/btrfs/volumes.c

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