ovl: take mnt_want_write() for work/index dir setup

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There are several write operations on upper fs not covered by
mnt_want_write():

- test set/remove OPAQUE xattr
- test create O_TMPFILE
- set ORIGIN xattr in ovl_verify_origin()
- cleanup of index entries in ovl_indexdir_cleanup()

Some of these go way back, but this patch only applies over the
v4.14 re-factoring of ovl_fill_super().

Cc: <stable@vger.kernel.org> #v4.14
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

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Amir Goldstein 2018-01-03 18:54:41 +02:00 • committed by Miklos Szeredi

parent f81678173c

commit 2ba9d57e65

1 changed files with 17 additions and 8 deletions

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fs/overlayfs/super.c

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