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writeback: don't warn on an unregistered BDI in __mark_inode_dirty

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BDIs get unregistered during device removal, and this WARN can be
trivially triggered by hot-removing a NVMe device while running fsx
It is otherwise harmless as we still hold a BDI reference, and the
writeback has been shut down already.

Link: https://lore.kernel.org/r/20200928122613.434820-1-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Christoph Hellwig 2020-09-28 14:26:13 +02:00 committed by Jan Kara
parent e51d68e76d
commit f738717033
1 changed files with 0 additions and 4 deletions
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4
fs/fs-writeback.c
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@ -2321,10 +2321,6 @@ void __mark_inode_dirty(struct inode *inode, int flags)
wb = locked_inode_to_wb_and_lock_list(inode);
WARN((wb->bdi->capabilities & BDI_CAP_WRITEBACK) &&
!test_bit(WB_registered, &wb->state),
"bdi-%s not registered\n", bdi_dev_name(wb->bdi));
inode->dirtied_when = jiffies;
if (dirtytime)
inode->dirtied_time_when = jiffies;