reiserfs: Relax reiserfs_xattr_set_handle() while acquiring xattr locks
Fix remaining xattr locks acquired in reiserfs_xattr_set_handle() while we are holding the reiserfs lock to avoid lock inversions. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Christian Kujau <lists@nerdbynature.de> Cc: Alexander Beregalov <a.beregalov@gmail.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Ingo Molnar <mingo@elte.hu>
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@ -559,8 +559,12 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
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.ia_size = buffer_size,
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.ia_valid = ATTR_SIZE | ATTR_CTIME,
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};
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reiserfs_write_unlock(inode->i_sb);
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mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
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down_write(&dentry->d_inode->i_alloc_sem);
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reiserfs_write_lock(inode->i_sb);
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err = reiserfs_setattr(dentry, &newattrs);
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up_write(&dentry->d_inode->i_alloc_sem);
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mutex_unlock(&dentry->d_inode->i_mutex);
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