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ext4: add ioctls to get/set the ext4 superblock uuid
authorJeremy Bongio <bongiojp@gmail.com>
Thu, 21 Jul 2022 22:44:22 +0000 (15:44 -0700)
committerTheodore Ts'o <tytso@mit.edu>
Wed, 3 Aug 2022 03:56:26 +0000 (23:56 -0400)
commit3f74196f58eab97f66034da039e1a7a044e9c171
treedc535f856a9dad220ccfa28f75d8f354e8c724bctree | snapshot
parent0f03da592fa20edc113dc491a4a4384688c7e7f0commit | diff
ext4: add ioctls to get/set the ext4 superblock uuid

This fixes a race between changing the ext4 superblock uuid and operations
like mounting, resizing, changing features, etc.

Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jeremy Bongio <bongiojp@gmail.com>
Link: https://lore.kernel.org/r/20220721224422.438351-1-bongiojp@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
fs/ext4/ext4.h diff | blob | history
fs/ext4/ioctl.c diff | blob | history
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