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437584796d
Fix below warning coming because of using mutex lock in atomic context. BUG: sleeping function called from invalid context at kernel/locking/mutex.c:98 in_atomic(): 1, irqs_disabled(): 0, pid: 585, name: sh Preemption disabled at: __radix_tree_preload+0x28/0x130 Call trace: dump_backtrace+0x0/0x2b4 show_stack+0x20/0x28 dump_stack+0xa8/0xe0 ___might_sleep+0x144/0x194 __might_sleep+0x58/0x8c mutex_lock+0x2c/0x48 f2fs_trace_pid+0x88/0x14c f2fs_set_node_page_dirty+0xd0/0x184 Do not use f2fs_radix_tree_insert() to avoid doing cond_resched() with spin_lock() acquired. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.