f2fs: handle readonly filesystem in f2fs_ioc_shutdown()
[ Upstream commit 8626441f05
]
If mountpoint is readonly, we should allow shutdowning filesystem
successfully, this fixes issue found by generic/599 testcase of
xfstest.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -2056,8 +2056,15 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
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if (in != F2FS_GOING_DOWN_FULLSYNC) {
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ret = mnt_want_write_file(filp);
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if (ret)
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if (ret) {
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if (ret == -EROFS) {
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ret = 0;
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f2fs_stop_checkpoint(sbi, false);
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set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
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trace_f2fs_shutdown(sbi, in, ret);
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}
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return ret;
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}
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}
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switch (in) {
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