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authorCarlos Maiolino <cmaiolino@redhat.com>2017-06-29 12:25:40 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2017-06-30 03:21:06 +0300
commita8e2b6367794e6cee9eecba6d5ff425f338e0754 (patch)
treedf6a37f24748795a1426909f905742e908610172 /fs/debugfs
parent6916363f3083837ed5adb3df2dd90d6b97017dff (diff)
downloadlinux-a8e2b6367794e6cee9eecba6d5ff425f338e0754.tar.xz
Make statfs properly return read-only state after emergency remount
Emergency remount (sysrq-u) sets MS_RDONLY to the superblock but doesn't set MNT_READONLY to the mount point. Once calculate_f_flags() only check for the mount point read only state, when setting kstatfs flags, after an emergency remount, statfs does not report the filesystem as read-only, even though it is. Enable flags_by_sb() to also check for superblock read only state, so the kstatfs and consequently statfs can properly show the read-only state of the filesystem. Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/debugfs')
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