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53df96011a
[ Upstream commit 73a2f033656be11298912201ad50615307b4477a ] Factor out __es_alloc_extent() and __es_free_extent(), which only allocate and free extent_status in these two helpers. The ext4_es_alloc_extent() function is split into __es_alloc_extent() and ext4_es_init_extent(). In __es_alloc_extent() we allocate memory using GFP_KERNEL | __GFP_NOFAIL | __GFP_ZERO if the memory allocation cannot fail, otherwise we use GFP_ATOMIC. and the ext4_es_init_extent() is used to initialize extent_status and update related variables after a successful allocation. This is to prepare for the use of pre-allocated extent_status later. Signed-off-by: Baokun Li <libaokun1@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230424033846.4732-4-libaokun1@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu> Stable-dep-of: 8e387c89e96b ("ext4: make sure allocate pending entry not fail") Signed-off-by: Sasha Levin <sashal@kernel.org> |
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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.