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authorChao Yu <yuchao0@huawei.com>2019-07-26 15:43:17 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2019-08-23 07:57:12 -0700
commit0921835c9544c1dc3d2093df6932f1b207eec487 (patch)
tree894920dfc5532d767cf09eaf77cc81b001b871c7 /fs/f2fs
parent280fd422958187ac5f069c08d84dd65f7f87c2e6 (diff)
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 <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/f2fs.h5
1 files changed, 4 insertions, 1 deletions
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,