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c376644fb9
struct io_rsrc_node carries a number of resources represented by struct io_rsrc_put. That was handy before for sync overhead ammortisation, but all complexity is gone and nodes are simple and lightweight. Let's allocate a separate node for each resource. Nodes and io_rsrc_put and not much different in size, and former are cached, so node allocation should work better. That also removes some overhead for nested iteration in io_rsrc_node_ref_zero() / __io_rsrc_put_work(). Another reason for the patch is that it greatly reduces complexity by moving io_rsrc_node_switch[_start]() inside io_queue_rsrc_removal(), so users don't have to care about it. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/c7d3a45b30cc14cd93700a710dd112edc703db98.1681822823.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
rust | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
.rustfmt.toml | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
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.