e231dbd452
Some more mostly boring fixes, but some not
User reported ones:
- the BTREE_ITER_FILTER_SNAPSHOTS one fixes a really nasty performance
bug; user reported an unter initially taking 2 seconds and then ~2
minutes
- kill a __GFP_NOFAIL in the buffered read path; this was a leftover
from the trickier fix to kill __GFP_NOFAIL in readahead, where we
can't return errors (and have to silently truncate the read
ourselves).
bcachefs can't use GFP_NOFAIL for folio state unlike iomap based
filesystems because our folio state is just barely too big, 2MB
hugepages cause us to exceed the 2 page threshhold for GFP_NOFAIL.
additionally, the flags argument was just buggy, we weren't supplying
GFP_KERNEL previously (!).
-----BEGIN PGP SIGNATURE-----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=KNWR
-----END PGP SIGNATURE-----
Merge tag 'bcachefs-2024-02-25' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"Some more mostly boring fixes, but some not
User reported ones:
- the BTREE_ITER_FILTER_SNAPSHOTS one fixes a really nasty
performance bug; user reported an untar initially taking two
seconds and then ~2 minutes
- kill a __GFP_NOFAIL in the buffered read path; this was a leftover
from the trickier fix to kill __GFP_NOFAIL in readahead, where we
can't return errors (and have to silently truncate the read
ourselves).
bcachefs can't use GFP_NOFAIL for folio state unlike iomap based
filesystems because our folio state is just barely too big, 2MB
hugepages cause us to exceed the 2 page threshhold for GFP_NOFAIL.
additionally, the flags argument was just buggy, we weren't
supplying GFP_KERNEL previously (!)"
* tag 'bcachefs-2024-02-25' of https://evilpiepirate.org/git/bcachefs:
bcachefs: fix bch2_save_backtrace()
bcachefs: Fix check_snapshot() memcpy
bcachefs: Fix bch2_journal_flush_device_pins()
bcachefs: fix iov_iter count underflow on sub-block dio read
bcachefs: Fix BTREE_ITER_FILTER_SNAPSHOTS on inodes btree
bcachefs: Kill __GFP_NOFAIL in buffered read path
bcachefs: fix backpointer_to_text() when dev does not exist
|
||
|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.