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reiserfs: replace open-coded atomic_dec_and_mutex_lock() 

Replace the open-coded logic of atomic_dec_and_mutex_lock() in
reiserfs_file_release().

Link: https://lore.kernel.org/r/20191103094431.GA18576-nikitas.angelinas@gmail.com
Signed-off-by: Nikitas Angelinas <nikitas.angelinas@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Nikitas Angelinas 2019-11-03 01:44:54 -08:00 committed by Jan Kara
parent e705f4b8aa
commit a9913d7eaf
1 changed files with 2 additions and 8 deletions
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10
fs/reiserfs/file.c
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@ -38,16 +38,10 @@ static int reiserfs_file_release(struct inode *inode, struct file *filp)
BUG_ON(!S_ISREG(inode->i_mode));
if (atomic_add_unless(&REISERFS_I(inode)->openers, -1, 1))
if (!atomic_dec_and_mutex_lock(&REISERFS_I(inode)->openers,
&REISERFS_I(inode)->tailpack))
return 0;
mutex_lock(&REISERFS_I(inode)->tailpack);
if (!atomic_dec_and_test(&REISERFS_I(inode)->openers)) {
mutex_unlock(&REISERFS_I(inode)->tailpack);
return 0;
}
/* fast out for when nothing needs to be done */
if ((!(REISERFS_I(inode)->i_flags & i_pack_on_close_mask) ||
!tail_has_to_be_packed(inode)) &&