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authorSeunghun Lee <waydi1@gmail.com>2015-01-03 02:26:49 +0900
committerMiklos Szeredi <mszeredi@suse.cz>2015-01-08 14:47:21 +0100
commit3cdf6fe91041b3afd6761f76254f7b6cbe8020fc (patch)
tree5ec7e50d2280727e59da23dd6af59c12d3c009d2 /Documentation/hwmon/f71882fg
parenta425c037f3dd8a56469158ab5f37beb46402d958 (diff)
downloadlinux-3cdf6fe91041b3afd6761f76254f7b6cbe8020fc.tar.bz2
ovl: Prevent rw remount when it should be ro mount
Overlayfs should be mounted read-only when upper-fs is read-only or nonexistent. But now it can be remounted read-write and this can cause kernel panic. So we should prevent read-write remount when the above situation happens. Signed-off-by: Seunghun Lee <waydi1@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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