quota: Fix rcu annotations of inode dquot pointers

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[ Upstream commit 179b8c97eb ]

Dquot pointers in i_dquot array in the inode are protected by
dquot_srcu. Annotate the array pointers with __rcu, perform the locked
dereferences with srcu_dereference_check() instead of plain reads, and
set the array elements with rcu_assign_pointer().

Fixes: b9ba6f94b2 ("quota: remove dqptr_sem")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402061900.rTuYDlo6-lkp@intel.com/
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jan Kara 2024-02-06 15:32:09 +01:00 • committed by Sasha Levin

parent 40a673b4b0

commit e45e8aa2b7

1 changed files with 39 additions and 27 deletions

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fs/quota/dquot.c

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