ocfs2: change slot number type s16 to u16
Dan Carpenter reported the following static checker warning.
fs/ocfs2/super.c:1269 ocfs2_parse_options() warn: '(-1)' 65535 can't fit into 32767 'mopt->slot'
fs/ocfs2/suballoc.c:859 ocfs2_init_inode_steal_slot() warn: '(-1)' 65535 can't fit into 32767 'osb->s_inode_steal_slot'
fs/ocfs2/suballoc.c:867 ocfs2_init_meta_steal_slot() warn: '(-1)' 65535 can't fit into 32767 'osb->s_meta_steal_slot'
That's because OCFS2_INVALID_SLOT is (u16)-1. Slot number in ocfs2 can be
never negative, so change s16 to u16.
Fixes: 9277f8334f
("ocfs2: fix value of OCFS2_INVALID_SLOT")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reviewed-by: Gang He <ghe@suse.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200627001259.19757-1-junxiao.bi@oracle.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Родитель
7eba77d59e
Коммит
38d51b2dd1
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@ -327,8 +327,8 @@ struct ocfs2_super
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spinlock_t osb_lock;
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u32 s_next_generation;
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unsigned long osb_flags;
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s16 s_inode_steal_slot;
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s16 s_meta_steal_slot;
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u16 s_inode_steal_slot;
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u16 s_meta_steal_slot;
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atomic_t s_num_inodes_stolen;
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atomic_t s_num_meta_stolen;
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@ -879,9 +879,9 @@ static void __ocfs2_set_steal_slot(struct ocfs2_super *osb, int slot, int type)
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{
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spin_lock(&osb->osb_lock);
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if (type == INODE_ALLOC_SYSTEM_INODE)
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osb->s_inode_steal_slot = slot;
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osb->s_inode_steal_slot = (u16)slot;
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else if (type == EXTENT_ALLOC_SYSTEM_INODE)
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osb->s_meta_steal_slot = slot;
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osb->s_meta_steal_slot = (u16)slot;
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spin_unlock(&osb->osb_lock);
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}
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@ -78,7 +78,7 @@ struct mount_options
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unsigned long commit_interval;
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unsigned long mount_opt;
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unsigned int atime_quantum;
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signed short slot;
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unsigned short slot;
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int localalloc_opt;
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unsigned int resv_level;
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int dir_resv_level;
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@ -1349,7 +1349,7 @@ static int ocfs2_parse_options(struct super_block *sb,
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goto bail;
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}
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if (option)
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mopt->slot = (s16)option;
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mopt->slot = (u16)option;
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break;
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case Opt_commit:
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if (match_int(&args[0], &option)) {
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