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| /openbmc/linux/fs/quota/ |
| H A D | dquot.c | 1aa3b3e0 Mon Apr 09 09:31:19 CDT 2018 Jia-Ju Bai <baijiaju1990@gmail.com> fs: quota: Replace GFP_ATOMIC with GFP_KERNEL in dquot_init
dquot_init() is never called in atomic context.
This function is only set as a parameter of fs_initcall().
Despite never getting called from atomic context,
dquot_init() calls __get_free_pages() with GFP_ATOMIC,
which waits busily for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
to avoid busy waiting and improve the possibility of sucessful allocation.
This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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