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Wrapper around bch2_dev_have_ref() for open_buckets; we do guarantee
that the device an open_bucket points to exists.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This is needed for the next patch - the write submit path has to be able
to allocate a replica bio even when we weren't able to get a ref on the
device.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Most uses of bch2_dev_bkey_exists() are going away, where we assume that
because a key references a device the device most exist - instead, we'll
be explicitly checking if the device exists and getting a reference to
it.
This adds the new helpers.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Eliminating bch2_dev_bkey_exists() uses and replacing them with proper
checks; this one was unnecessary since the caller already has it.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
If we block on the allocator for more than 10 seconds, print out some
useful debugging info.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Add a new variant of closure_sync_timeout() that takes a timeout.
Note that when this returns -ETIME the closure will still be waiting on
something, i.e. it's not safe to return if you've got a stack allocated
closure.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
We can't strictly guarantee that no pointers refer to nonexistent
devices - we attempt to, but we need to be safe when the filesystem is
corrupt.
Therefore, change device_add to try to pick a slot that's never been
used, or the slot that's been unused the longest.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Now explicitly allocate and free the buckets_nouse bitmap - this is
going to be used for online fsck.
To go RW when we haven't check allocations, we'll do a much slimmed down
version that just initializes the buckets_nouse bitmaps.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
It should be FS_IOC32_GETFLAGS instead of FS_IOC_GETFLAGS in
compat ioctl.
Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
In bch2_link_trans(), if bch2_inode_nlink_inc() fails, it needs to
call bch2_trans_iter_exit() in the error path.
Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The vfs[1] documentation describes free_inode as follows:
```
free_inode
this method is called from RCU callback. If you use call_rcu()
in ->destroy_inode to free ‘struct inode’ memory, then it’s
better to release memory in this method.
```
free_inode will be called by the RCU callback, so it might be better
to move the inode free operation to destroy_inode.
Similar to commit ae6b47b5653e ("fs/ntfs3: Change destroy_inode to
free_inode").
Link:
[1]: https://www.kernel.org/doc/html/latest/filesystems/vfs.html
Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
On recovery from clean shutdown we don't typically read the journal, but
we still want to avoid overwriting existing entries in the journal for
list_journal debugging.
Thus, add some fields to the member info section so we can remember
where we left off.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
