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main: honor option volatile

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upstream Linux added an option "volatile" for overlay mounts that has
the same meaning as fsync=0 already supported by fuse-overlayfs.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2020-10-21 18:03:00 +02:00
parent 80d0ed6499
commit 589e363cc8
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1 changed files with 3 additions and 0 deletions
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main.c
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@ -220,6 +220,8 @@ static const struct fuse_opt ovl_opts[] = {
offsetof (struct ovl_data, xattr_permissions), 0}, offsetof (struct ovl_data, xattr_permissions), 0},
{"squash_to_root", {"squash_to_root",
offsetof (struct ovl_data, squash_to_root), 1}, offsetof (struct ovl_data, squash_to_root), 1},
{"volatile", /* native overlay supports "volatile" to mean fsync=0. */
offsetof (struct ovl_data, fsync), 0},
FUSE_OPT_END FUSE_OPT_END
}; };
@ -5476,6 +5478,7 @@ main (int argc, char *argv[])
fprintf (stderr, "lowerdir=%s\n", lo.lowerdir); fprintf (stderr, "lowerdir=%s\n", lo.lowerdir);
fprintf (stderr, "mountpoint=%s\n", lo.mountpoint); fprintf (stderr, "mountpoint=%s\n", lo.mountpoint);
fprintf (stderr, "plugins=%s\n", lo.plugins ? lo.plugins : "<none>"); fprintf (stderr, "plugins=%s\n", lo.plugins ? lo.plugins : "<none>");
fprintf (stderr, "fsync=%s\n", lo.fsync ? "enabled" : "disabled");
} }
lo.uid_mappings = lo.uid_str ? read_mappings (lo.uid_str) : NULL; lo.uid_mappings = lo.uid_str ? read_mappings (lo.uid_str) : NULL;