From 0921835c9544c1dc3d2093df6932f1b207eec487 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Fri, 26 Jul 2019 15:43:17 +0800 Subject: [PATCH] f2fs: fix to avoid call kvfree under spinlock vfree() don't wish to be called from interrupt context, move it out of spin_lock_irqsave() coverage. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 17382da7f0bd..4fa9a618b31a 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1640,6 +1640,7 @@ static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f) static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) { unsigned long flags; + unsigned char *nat_bits; /* * In order to re-enable nat_bits we need to call fsck.f2fs by @@ -1650,10 +1651,12 @@ static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock) if (lock) spin_lock_irqsave(&sbi->cp_lock, flags); __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG); - kvfree(NM_I(sbi)->nat_bits); + nat_bits = NM_I(sbi)->nat_bits; NM_I(sbi)->nat_bits = NULL; if (lock) spin_unlock_irqrestore(&sbi->cp_lock, flags); + + kvfree(nat_bits); } static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,