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writeback: check for registered bdi in flusher add and inode dirty

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Also a debugging aid. We want to catch dirty inodes being added to
backing devices that don't do writeback.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Jens Axboe 2009-09-09 09:10:25 +02:00
parent d993831fa7
commit 500b067c5e
3 changed files with 16 additions and 0 deletions
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1
include/linux/backing-dev.h
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@ -29,6 +29,7 @@ enum bdi_state {
BDI_wb_alloc, /* Default embedded wb allocated */
BDI_async_congested, /* The async (write) queue is getting full */
BDI_sync_congested, /* The sync queue is getting full */
BDI_registered, /* bdi_register() was done */
BDI_unused, /* Available bits start here */
};