ovl: use ovl_inode mutex to synchronize concurrent copy up

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Use the new ovl_inode mutex to synchonize concurrent copy up
instead of the super block copy up workqueue.

Moving the synchronization object from the overlay dentry to
the overlay inode is needed for synchonizing concurrent copy up
of lower hardlinks to the same upper inode.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

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Amir Goldstein 2017-06-21 15:28:51 +03:00 • committed by Miklos Szeredi

parent 13c72075ac

commit a015dafcaf

3 changed files with 11 additions and 20 deletions

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5

fs/overlayfs/ovl_entry.h

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3

fs/overlayfs/super.c

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23

fs/overlayfs/util.c

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