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| Filename | Latest commit message | Latest commit date |
|---|---|---|
dd68ba0d73
commit 75ec1db8717a8f0a9d9c8d033e542fdaa7b73898 upstream.
In my EIO stress testing I noticed I was getting forced to rescan the
uuid tree pretty often, which was weird. This is because my error
injection stuff would sometimes inject an error after log replay but
before we loaded the UUID tree. If log replay committed the transaction
it wouldn't have updated the uuid tree generation, but the tree was
valid and didn't change, so there's no reason to not update the
generation here.
Fix this by setting the BTRFS_FS_UPDATE_UUID_TREE_GEN bit immediately
after reading all the fs roots if the uuid tree generation matches the
fs generation. Then any transaction commits that happen during mount
won't screw up our uuid tree state, forcing us to do needless uuid
rescans.
Fixes:
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| init | ||
| ipc | ||
| kernel | ||
| lib | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.